mirror of https://github.com/qpdf/qpdf.git
Change release notes order
This commit is contained in:
Jay Berkenbilt
parent
4fa7b1eb60
commit
b3c91f64bb
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@ -4414,6 +4414,161 @@ print "\n";
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para>
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CLI Enhancements
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</para>
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<itemizedlist>
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<listitem>
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<para>
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The <option>--recompress-flate</option> instructs
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<command>qpdf</command> to recompress streams that are
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already compressed with <literal>/FlateDecode</literal>.
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Useful with <option>--compression-level</option>.
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</para>
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</listitem>
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<listitem>
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<para>
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the
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<option>--compression-level=<replaceable>level</replaceable></option>
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sets the zlib compression level used for any streams
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compressed by <literal>/FlateDecode</literal>. Most
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effective when combined with
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<option>--recompress-flate</option>.
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</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para>
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Library Enhancements
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</para>
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<itemizedlist>
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<listitem>
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<para>
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A new namespace <classname>QIntC</classname>, provided by
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<filename>qpdf/QIntC.hh</filename>, provides safe conversion
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methods between different integer types. These conversion
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methods do range checking to ensure that the cast can be
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performed with no loss of information. Every use of
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<function>static_cast</function> in the library was
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inspected to see if it could use one of these safe
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converters instead. See <xref linkend="ref.casting"/> for
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additional details.
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</para>
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</listitem>
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<listitem>
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<para>
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New methods have been added to <classname>QUtil</classname>
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for converting back and forth between strings and unsigned
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integers: <function>uint_to_string</function>,
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<function>uint_to_string_base</function>,
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<function>string_to_uint</function>, and
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<function>string_to_ull</function>.
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</para>
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</listitem>
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<listitem>
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<para>
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New methods have been added to
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<classname>QPDFObjectHandle</classname> that return the
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value of <classname>Integer</classname> objects as
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<type>int</type> or <type>unsigned int</type> with range
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checking and sensible fallback values, and a new method was
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added to return an unsigned value. This makes it easier to
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write code that is safe from unintentional data loss.
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Functions: <function>getUIntValue</function>,
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<function>getIntVauleAsInt</function>,
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<function>getUIntValueAsUInt</function>.
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</para>
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</listitem>
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<listitem>
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<para>
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When parsing content streams with
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<classname>QPDFObjectHandle::ParserCallbacks</classname>, in
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place of the method
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<function>handleObject(QPDFObjectHandle)</function>, the
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developer may override
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<function>handleObject(QPDFObjectHandle, size_t offset,
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size_t length)</function>. If this method is defined, it
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will be invoked with the object along with its offset and
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length within the overall contents being parsed. Intervening
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spaces and comments are not included in offset and length.
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Additionally, a new method
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<function>contentSize(size_t)</function> may be implemented.
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If present, it will be called prior to the first call to
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<function>handleObject</function> with the total size in
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bytes of the combined contents.
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</para>
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</listitem>
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<listitem>
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<para>
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New methods <function>QPDF::userPasswordMatched</function>
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and <function>QPDF::ownerPasswordMatched</function> have
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been added to enable a caller to determine whether the
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supplied password was the user password, the owner password,
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or both. This information is also displayed by <command>qpdf
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--show-encryption</command> and <command>qpdf
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--check</command>.
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</para>
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</listitem>
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<listitem>
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<para>
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Static method
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<function>Pl_Flate::setCompressionLevel</function> can be
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called to set the zlib compression level globally used by
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all instances of Pl_Flate in deflate mode.
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</para>
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</listitem>
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<listitem>
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<para>
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The method
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<function>QPDFWriter::setRecompressFlate</function> can be
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called to tell <classname>QPDFWriter</classname> to
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uncompress and recompress streams already compressed with
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<literal>/FlateDecode</literal>.
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</para>
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</listitem>
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<listitem>
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<para>
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The underlying implementation of QPDF arrays has been
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enhanced to be much more memory efficient when dealing with
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arrays with lots of nulls. This enables qpdf to use
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drastically less memory for certain types of files.
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</para>
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</listitem>
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<listitem>
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<para>
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When traversing the pages tree, if nodes are encountered
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with invalid types, the types are fixed, and a warning is
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issued.
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</para>
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</listitem>
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<listitem>
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<para>
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A new helper method
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<function>QUtil::read_file_into_memory</function> was added.
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</para>
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</listitem>
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<listitem>
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<para>
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All conditions previously reported by
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<function>QPDF::checkLinearization()</function> as errors
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are now presented as warnings.
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</para>
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</listitem>
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<listitem>
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<para>
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Name tokens containing the <literal>#</literal> character
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not preceded by two hexadecimal digits, which is invalid in
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PDF 1.2 and above, are properly handled by the library: a
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warning is generated, and the name token is properly
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preserved, even if invalid, in the output. See
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<filename>ChangeLog</filename> for a more complete
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description of this change.
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</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para>
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Bug Fixes
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@ -4518,154 +4673,6 @@ print "\n";
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para>
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Library and CLI Enhancements
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</para>
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<itemizedlist>
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<listitem>
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<para>
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A new namespace <classname>QIntC</classname>, provided by
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<filename>qpdf/QIntC.hh</filename>, provides safe conversion
|
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methods between different integer types. These conversion
|
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methods do range checking to ensure that the cast can be
|
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performed with no loss of information. Every use of
|
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<function>static_cast</function> in the library was
|
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inspected to see if it could use one of these safe
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converters instead. See <xref linkend="ref.casting"/> for
|
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additional details.
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</para>
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</listitem>
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<listitem>
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<para>
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New methods have been added to <classname>QUtil</classname>
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for converting back and forth between strings and unsigned
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integers: <function>uint_to_string</function>,
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<function>uint_to_string_base</function>,
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<function>string_to_uint</function>, and
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<function>string_to_ull</function>.
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</para>
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</listitem>
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<listitem>
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<para>
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New methods have been added to
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<classname>QPDFObjectHandle</classname> that return the
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value of <classname>Integer</classname> objects as
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<type>int</type> or <type>unsigned int</type> with range
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checking and sensible fallback values, and a new method was
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added to return an unsigned value. This makes it easier to
|
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write code that is safe from unintentional data loss.
|
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Functions: <function>getUIntValue</function>,
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<function>getIntVauleAsInt</function>,
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<function>getUIntValueAsUInt</function>.
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</para>
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</listitem>
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<listitem>
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<para>
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When parsing content streams with
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<classname>QPDFObjectHandle::ParserCallbacks</classname>, in
|
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place of the method
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<function>handleObject(QPDFObjectHandle)</function>, the
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developer may override
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<function>handleObject(QPDFObjectHandle, size_t offset,
|
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size_t length)</function>. If this method is defined, it
|
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will be invoked with the object along with its offset and
|
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length within the overall contents being parsed. Intervening
|
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spaces and comments are not included in offset and length.
|
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Additionally, a new method
|
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<function>contentSize(size_t)</function> may be implemented.
|
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If present, it will be called prior to the first call to
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<function>handleObject</function> with the total size in
|
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bytes of the combined contents.
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</para>
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</listitem>
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<listitem>
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<para>
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New methods <function>QPDF::userPasswordMatched</function>
|
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and <function>QPDF::ownerPasswordMatched</function> have
|
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been added to enable a caller to determine whether the
|
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supplied password was the user password, the owner password,
|
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or both. This information is also displayed by <command>qpdf
|
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--show-encryption</command> and <command>qpdf
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--check</command>.
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</para>
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</listitem>
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<listitem>
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<para>
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Static method
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<function>Pl_Flate::setCompressionLevel</function> can be
|
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called to set the zlib compression level globally used by
|
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all instances of Pl_Flate in deflate mode.
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</para>
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</listitem>
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<listitem>
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<para>
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The method
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<function>QPDFWriter::setRecompressFlate</function> can be
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called to tell <classname>QPDFWriter</classname> to
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uncompress and recompress streams already compressed with
|
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<literal>/FlateDecode</literal>.
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</para>
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</listitem>
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<listitem>
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<para>
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CLI enhancement: the <option>--recompress-flate</option>
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instructs <command>qpdf</command> to recompress streams that
|
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are already compressed with <literal>/FlateDecode</literal>.
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Useful with <option>--compression-level</option>.
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</para>
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</listitem>
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<listitem>
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<para>
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CLI enhancement: the
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<option>--compression-level=<replaceable>level</replaceable></option>
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sets the zlib compression level used for any streams
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compressed by <literal>/FlateDecode</literal>. Most
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effective when combined with
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<option>--recompress-flate</option>.
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</para>
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</listitem>
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<listitem>
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<para>
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The underlying implementation of QPDF arrays has been
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enhanced to be much more memory efficient when dealing with
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arrays with lots of nulls. This enables qpdf to use
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drastically less memory for certain types of files.
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</para>
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</listitem>
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<listitem>
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<para>
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When traversing the pages tree, if nodes are encountered
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with invalid types, the types are fixed, and a warning is
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issued.
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</para>
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</listitem>
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<listitem>
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<para>
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A new helper method
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<function>QUtil::read_file_into_memory</function> was added.
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</para>
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</listitem>
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<listitem>
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<para>
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All conditions previously reported by
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<function>QPDF::checkLinearization()</function> as errors
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are now presented as warnings.
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</para>
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</listitem>
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<listitem>
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<para>
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Name tokens containing the <literal>#</literal> character
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not preceded by two hexadecimal digits, which is invalid in
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PDF 1.2 and above, are properly handled by the library: a
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warning is generated, and the name token is properly
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||||
preserved, even if invalid, in the output. See
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||||
<filename>ChangeLog</filename> for a more complete
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description of this change.
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||||
</para>
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</listitem>
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||||
</itemizedlist>
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||||
</listitem>
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||||
<listitem>
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||||
<para>
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||||
Other Notes
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|
|
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