Additionally license under Apache License version 2.0

The Apache License version 2.0 is now the primary license for qpdf.
However, users may, at their option, continue to use Artistic version
2.0.

ChangeLog

@@ -1,5 +1,15 @@
 2017-09-12  Jay Berkenbilt  <ejb@ql.org>
 
+	* Relicense qpdf under version 2.0 of the Apache License rather
+	than version 2.0 of the Artistic License. Both are fine, but the
+	Apache License is in more widespread use, and I like it a little
+	better than Artistic-2.0. It is my intention that there be no
+	change in what you can or can't do with qpdf. Versions of qpdf
+	prior to version 7 were released under the terms of version 2.0 of
+	the Artistic License. At your option, you may continue to consider
+	qpdf to be licensed under those terms. Please see the manual for
+	additional information.
+
 	* Improve the error message that is issued when QPDFWriter
 	encounters a stream that can't be decoded. In particular, mention
 	that the stream will be copied without filtering to avoid data

LICENSE.txt

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+   Copyright [yyyy] [name of copyright owner]
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

NOTICE.md

@@ -0,0 +1,42 @@
+QPDF is copyright (c) 2005-2017 Jay Berkenbilt
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+
+Versions of qpdf prior to version 7 were released under the terms of version 2.0 of the Artistic License. At your option, you may continue to consider qpdf to be licensed under those terms. Please see the manual for additional information.
+
+The qpdf distribution includes a copy of [qtest](http://qtest.qbilt.org), which is released under the terms of the [version 2.0 of the Artistic license](https://opensource.org/licenses/Artistic-2.0), which can be found at https://opensource.org/licenses/Artistic-2.0.
+
+The Rijndael encryption implementation used as the basis for AES encryption and decryption support comes from Philip J. Erdelsky's public domain implementation.  The files `libqpdf/rijndael.cc` and `libqpdf/qpdf/rijndael.h` remain in the public domain.  They were obtained from
+* http://www.efgh.com/software/rijndael.htm
+* http://www.efgh.com/software/rijndael.txt
+
+The embedded sha2 code comes from sphlib 3.0
+* http://www.saphir2.com/sphlib/
+
+That code has the following license:
+  ```
+  Copyright (c) 2007-2011  Projet RNRT SAPHIR
+
+  Permission is hereby granted, free of charge, to any person obtaining
+  a copy of this software and associated documentation files (the
+  "Software"), to deal in the Software without restriction, including
+  without limitation the rights to use, copy, modify, merge, publish,
+  distribute, sublicense, and/or sell copies of the Software, and to
+  permit persons to whom the Software is furnished to do so, subject to
+  the following conditions:
+
+  The above copyright notice and this permission notice shall be included
+  in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+  ```

README.md

@@ -2,7 +2,15 @@ This is the QPDF package.  Information about it can be found at https://qpdf.sou
 
 QPDF is copyright (c) 2005-2017 Jay Berkenbilt
 
-This software may be distributed under the terms of version 2 of the Artistic License which may be found in the source distribution as "Artistic-2.0".  It is provided "as is" without express or implied warranty.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+
+You may also see the license in the file [LICENSE.txt](LICENSE.txt) in the source distribution.
+
+Versions of qpdf prior to version 7 were released under the terms of version 2.0 of the Artistic License. At your option, you may continue to consider qpdf to be licensed under those terms. Please see the manual for additional information. The Artistic License appears in the file [Artistic-2.0](Artistic-2.0) in the source distribution.
 
 # Prerequisites
 
@@ -14,36 +22,7 @@ QPDF requires a C++ compiler that works with STL.  Your compiler must also suppo
 
 QPDF makes use of zlib and jpeg libraries for its functionality. These packages can be downloaded separately from their own download locations, or they can be downloaded in the external-libs area of the qpdf download site.
 
-The Rijndael encryption implementation used as the basis for AES encryption and decryption support comes from Philip J. Erdelsky's public domain implementation.  The files `libqpdf/rijndael.cc` and `libqpdf/qpdf/rijndael.h` remain in the public domain.  They were obtained from
+Please see the [NOTICE](NOTICE.md) file for information on licenses of embedded software.
-* http://www.efgh.com/software/rijndael.htm
-* http://www.efgh.com/software/rijndael.txt
-
-The embedded sha2 code comes from sphlib 3.0
-* http://www.saphir2.com/sphlib/
-
-That code has the following license:
-  ```
-  Copyright (c) 2007-2011  Projet RNRT SAPHIR
-
-  Permission is hereby granted, free of charge, to any person obtaining
-  a copy of this software and associated documentation files (the
-  "Software"), to deal in the Software without restriction, including
-  without limitation the rights to use, copy, modify, merge, publish,
-  distribute, sublicense, and/or sell copies of the Software, and to
-  permit persons to whom the Software is furnished to do so, subject to
-  the following conditions:
-
-  The above copyright notice and this permission notice shall be included
-  in all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-  ```
 
 # Building from a pristine checkout
 

TODO

@@ -1,6 +1,9 @@
 Before final 7.0.0
 ==================
 
+ * Include information about relicensing prominently in release
+   announcement for packagers.
+
  * Create release notes
 
 Soon

include/qpdf/Buffer.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __BUFFER_HH__
 #define __BUFFER_HH__

include/qpdf/BufferInputSource.hh

@@ -1,10 +1,23 @@
-/* Copyright (c) 2005-2017 Jay Berkenbilt
+// Copyright (c) 2005-2017 Jay Berkenbilt
- *
+//
- * This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+//
- * in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+// you may not use this file except in compliance with the License.
- */
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDF_BUFFERINPUTSOURCE_HH__
 #define __QPDF_BUFFERINPUTSOURCE_HH__

include/qpdf/Constants.h

@@ -1,9 +1,23 @@
 /* Copyright (c) 2005-2017 Jay Berkenbilt
  *
- * This file is part of qpdf.  This software may be distributed under
+ * This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+ *
- * in the source distribution.  It is provided "as is" without express
+ * Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Versions of qpdf prior to version 7 were released under the terms
+ * of version 2.0 of the Artistic License. At your option, you may
+ * continue to consider qpdf to be licensed under those terms. Please
+ * see the manual for additional information.
  */
 
 #ifndef __QPDFCONSTANTS_H__

include/qpdf/DLL.h

@@ -1,9 +1,23 @@
 /* Copyright (c) 2005-2017 Jay Berkenbilt
  *
- * This file is part of qpdf.  This software may be distributed under
+ * This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+ *
- * in the source distribution.  It is provided "as is" without express
+ * Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Versions of qpdf prior to version 7 were released under the terms
+ * of version 2.0 of the Artistic License. At your option, you may
+ * continue to consider qpdf to be licensed under those terms. Please
+ * see the manual for additional information.
  */
 
 #ifndef __QPDF_DLL_HH__

include/qpdf/FileInputSource.hh

@@ -1,10 +1,23 @@
-/* Copyright (c) 2005-2017 Jay Berkenbilt
+// Copyright (c) 2005-2017 Jay Berkenbilt
- *
+//
- * This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+//
- * in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+// you may not use this file except in compliance with the License.
- */
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDF_FILEINPUTSOURCE_HH__
 #define __QPDF_FILEINPUTSOURCE_HH__

include/qpdf/InputSource.hh

@@ -1,10 +1,23 @@
-/* Copyright (c) 2005-2017 Jay Berkenbilt
+// Copyright (c) 2005-2017 Jay Berkenbilt
- *
+//
- * This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+//
- * in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+// you may not use this file except in compliance with the License.
- */
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDF_INPUTSOURCE_HH__
 #define __QPDF_INPUTSOURCE_HH__

include/qpdf/Pipeline.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 // Generalized Pipeline interface.  By convention, subclasses of
 // Pipeline are called Pl_Something.

include/qpdf/Pl_Buffer.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __PL_BUFFER_HH__
 #define __PL_BUFFER_HH__

include/qpdf/Pl_Concatenate.hh

@@ -1,10 +1,23 @@
-/* Copyright (c) 2005-2017 Jay Berkenbilt
+// Copyright (c) 2005-2017 Jay Berkenbilt
- *
+//
- * This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+//
- * in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+// you may not use this file except in compliance with the License.
- */
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __PL_CONCATENATE_HH__
 #define __PL_CONCATENATE_HH__

include/qpdf/Pl_Count.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __PL_COUNT_HH__
 #define __PL_COUNT_HH__

include/qpdf/Pl_DCT.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __PL_DCT_HH__
 #define __PL_DCT_HH__

include/qpdf/Pl_Discard.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __PL_DISCARD_HH__
 #define __PL_DISCARD_HH__

include/qpdf/Pl_Flate.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __PL_FLATE_HH__
 #define __PL_FLATE_HH__

include/qpdf/Pl_RunLength.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __PL_RUNLENGTH_HH__
 #define __PL_RUNLENGTH_HH__

include/qpdf/Pl_StdioFile.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 // End-of-line pipeline that simply writes its data to a stdio FILE* object.
 

include/qpdf/PointerHolder.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __POINTERHOLDER_HH__
 #define __POINTERHOLDER_HH__

include/qpdf/QPDF.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDF_HH__
 #define __QPDF_HH__

include/qpdf/QPDFExc.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDFEXC_HH__
 #define __QPDFEXC_HH__

include/qpdf/QPDFObjGen.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDFOBJGEN_HH__
 #define __QPDFOBJGEN_HH__

include/qpdf/QPDFObject.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDFOBJECT_HH__
 #define __QPDFOBJECT_HH__

include/qpdf/QPDFObjectHandle.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDFOBJECTHANDLE_HH__
 #define __QPDFOBJECTHANDLE_HH__

include/qpdf/QPDFTokenizer.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDFTOKENIZER_HH__
 #define __QPDFTOKENIZER_HH__

include/qpdf/QPDFWriter.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 // This class implements a simple writer for saving QPDF objects to
 // new PDF files.  See comments through the header file for additional

include/qpdf/QPDFXRefEntry.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QPDFXREFENTRY_HH__
 #define __QPDFXREFENTRY_HH__

include/qpdf/QTC.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QTC_HH__
 #define __QTC_HH__

include/qpdf/QUtil.hh

@@ -1,9 +1,23 @@
 // Copyright (c) 2005-2017 Jay Berkenbilt
 //
-// This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
-// the terms of version 2 of the Artistic License which may be found
+//
-// in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
-// or implied warranty.
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __QUTIL_HH__
 #define __QUTIL_HH__

include/qpdf/RandomDataProvider.hh

@@ -1,10 +1,23 @@
-/* Copyright (c) 2005-2017 Jay Berkenbilt
+// Copyright (c) 2005-2017 Jay Berkenbilt
- *
+//
- * This file is part of qpdf.  This software may be distributed under
+// This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+//
- * in the source distribution.  It is provided "as is" without express
+// Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+// you may not use this file except in compliance with the License.
- */
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Versions of qpdf prior to version 7 were released under the terms
+// of version 2.0 of the Artistic License. At your option, you may
+// continue to consider qpdf to be licensed under those terms. Please
+// see the manual for additional information.
 
 #ifndef __RANDOMDATAPROVIDER_HH__
 #define __RANDOMDATAPROVIDER_HH__

include/qpdf/Types.h

@@ -1,9 +1,23 @@
 /* Copyright (c) 2005-2017 Jay Berkenbilt
  *
- * This file is part of qpdf.  This software may be distributed under
+ * This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+ *
- * in the source distribution.  It is provided "as is" without express
+ * Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Versions of qpdf prior to version 7 were released under the terms
+ * of version 2.0 of the Artistic License. At your option, you may
+ * continue to consider qpdf to be licensed under those terms. Please
+ * see the manual for additional information.
  */
 
 #ifndef __QPDFTYPES_H__

include/qpdf/qpdf-c.h

@@ -1,9 +1,23 @@
 /* Copyright (c) 2005-2017 Jay Berkenbilt
  *
- * This file is part of qpdf.  This software may be distributed under
+ * This file is part of qpdf.
- * the terms of version 2 of the Artistic License which may be found
+ *
- * in the source distribution.  It is provided "as is" without express
+ * Licensed under the Apache License, Version 2.0 (the "License");
- * or implied warranty.
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Versions of qpdf prior to version 7 were released under the terms
+ * of version 2.0 of the Artistic License. At your option, you may
+ * continue to consider qpdf to be licensed under those terms. Please
+ * see the manual for additional information.
  */
 
 #ifndef __QPDF_C_H__

manual/qpdf-manual.xml

@@ -30,10 +30,30 @@
    url="https://github.com/qpdf/qpdf">https://github.com/qpdf/qpdf</ulink>.
   </para>
   <para>
-   QPDF has been released under the terms of <ulink
+   QPDF is licensed under <ulink
-   url="http://www.opensource.org/licenses/artistic-license-2.0.php">Version
+   url="http://www.apache.org/licenses/LICENSE-2.0">the Apache
-   2.0 of the Artistic License</ulink>, a copy of which appears in the
+   License, Version 2.0</ulink> (the "License"). Unless required by
-   file <filename>Artistic-2.0</filename> in the source distribution.
+   applicable law or agreed to in writing, software distributed under
+   the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
+   OR CONDITIONS OF ANY KIND, either express or implied. See the
+   License for the specific language governing permissions and
+   limitations under the License.
+  </para>
+  <para>
+   Versions of qpdf prior to version 7 were released under the terms
+   of <ulink url="https://opensource.org/licenses/Artistic-2.0">the
+   Artistic License, version 2.0</ulink>. At your option, you may
+   continue to consider qpdf to be licensed under those terms. The
+   Apache License 2.0 permits everything that the Artistic License 2.0
+   permits but is slightly less restrictive. Allowing the Artistic
+   License to continue being used is primary to help people who may
+   have to get specific approval to use qpdf in their products.
+  </para>
+  <para>
+   QPDF is intentionally released with a permissive license. However,
+   if there is some reason that the licensing terms don't work for
+   your requirements, please feel free to contact the copyright holder
+   to make other arrangements.
   </para>
   <para>
    QPDF was originally created in 2001 and modified periodically

qpdf/qpdf.cc

@@ -1170,13 +1170,37 @@ static void handle_help_version(int argc, char* argv[])
         //      12345678901234567890123456789012345678901234567890123456789012345678901234567890
         std::cout
             << whoami << " version " << QPDF::QPDFVersion() << std::endl
+            << std::endl
             << "Copyright (c) 2005-2017 Jay Berkenbilt"
             << std::endl
-            << "This software may be distributed under the terms of version 2 of the"
+            << "QPDF is licensed under the Apache License, Version 2.0 (the \"License\");"
             << std::endl
-            << "Artistic License which may be found in the source distribution.  It is"
+            << "not use this file except in compliance with the License."
             << std::endl
-            << "provided \"as is\" without express or implied warranty."
+            << "You may obtain a copy of the License at"
+            << std::endl
+            << std::endl
+            << "  http://www.apache.org/licenses/LICENSE-2.0"
+            << std::endl
+            << std::endl
+            << "Unless required by applicable law or agreed to in writing, software"
+            << std::endl
+            << "distributed under the License is distributed on an \"AS IS\" BASIS,"
+            << std::endl
+            << "WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied."
+            << std::endl
+            << "See the License for the specific language governing permissions and"
+            << std::endl
+            << "limitations under the License."
+            << std::endl
+            << std::endl
+            << "Versions of qpdf prior to version 7 were released under the terms"
+            << std::endl
+            << "of version 2.0 of the Artistic License. At your option, you may"
+            << std::endl
+            << "continue to consider qpdf to be licensed under those terms. Please"
+            << std::endl
+            << "see the manual for additional information."
             << std::endl;
         exit(0);
     }