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219 Commits

Author SHA1 Message Date
Jay Berkenbilt
a94a729fee Explicitly check root dictionary type 
Very badly corrupted files may not have a retrievable root dictionary.
Handle that as a special case so that a more helpful error message can
be provided.
 2017-07-28 18:03:30 -04:00
Jay Berkenbilt
7f8892525f Add precheck streams capability 
When requested, QPDFWriter will do more aggress prechecking of streams
to make sure it can actually succeed in decoding them before
attempting to do so. This will allow preservation of raw data even
when the raw data is corrupted relative to the specified filters.
 2017-07-27 23:42:27 -04:00
Jay Berkenbilt
428d96dfe1 Convert many more errors to warnings 2017-07-27 22:57:55 -04:00
Jay Berkenbilt
40f00122b8 Convert object parsing errors to warnings 
QPDFObjectHandle::parseInternal now issues warnings instead of
throwing exceptions for all error conditions that it finds (except
internal logic errors) and has stronger recovery for things like
invalid tokens and malformed dictionaries. This should improve qpdf's
ability to recover from a wide range of broken files that currently
cause it to fail.
 2017-07-27 18:20:31 -04:00
Jay Berkenbilt
701b518d5c Detect recursion loops resolving objects (fixes #51) 
During parsing of an object, sometimes parts of the object have to be
resolved. An example is stream lengths. If such an object directly or
indirectly points to the object being parsed, it can cause an infinite
loop. Guard against all cases of re-entrant resolution of objects.
 2017-07-26 06:24:07 -04:00
Jay Berkenbilt
afe0242b26 Handle object ID 0 (fixes #99) 
This is CVE-2017-9208.

The QPDF library uses object ID 0 internally as a sentinel to
represent a direct object, but prior to this fix, was not blocking
handling of 0 0 obj or 0 0 R as a special case. Creating an object in
the file with 0 0 obj could cause various infinite loops. The PDF spec
doesn't allow for object 0. Having qpdf handle object 0 might be a
better fix, but changing all the places in the code that assumes objid
== 0 means direct would be risky.
 2017-07-26 06:24:07 -04:00
Jay Berkenbilt
315092dd98 Avoid xref reconstruction infinite loop (fixes #100) 
This is CVE-2017-9209.
 2017-07-26 06:24:07 -04:00
Jay Berkenbilt
b7302a9b72 Prepare 6.0.0 release 2015-11-10 12:48:52 -05:00
Jay Berkenbilt
e5abc789a2 Prepare 5.2.0 release 2015-11-01 16:40:01 -05:00
Jay Berkenbilt
b62cbe2508 Tolerate some mangled xref tables 
If xref table entries lack the spec-required trailing whitespace or
contain a small amount of extra space, handle them anyway.
 2015-10-31 18:56:43 -04:00
Jay Berkenbilt
f0b85a1eb1 Remove trailing whitespace 2015-10-31 18:56:43 -04:00
Jay Berkenbilt
94e55394ed Prepare 5.1.3 release 2015-05-24 17:26:49 -04:00
Jay Berkenbilt
4071db59aa Prepare 5.1.2 release 2014-06-07 17:16:52 -04:00
Jay Berkenbilt
247d70efee Prepare 5.1.1 release 2014-01-14 15:45:35 -05:00
Jay Berkenbilt
c9a9fe9c2f Avoid traversing same object twice when copying objects 
This is a performance fix.  The output is unchanged.

Fixes #28.
 2013-12-26 11:51:50 -05:00
Jay Berkenbilt
0b6127558d Prepare 5.1.0 release 2013-12-17 15:26:07 -05:00
Jay Berkenbilt
e9a319fb95 Allow arbitrary whitespace, not just newline, after xref 
Fixes #27.
 2013-12-14 15:17:23 -05:00
Jay Berkenbilt
dc9df97466 Include <algorithm> for std::min, std::max 2013-11-29 10:48:16 -05:00
Jay Berkenbilt
e1bd72b46c Prepare for 5.0.1 release 2013-10-18 13:51:30 -04:00
Jay Berkenbilt
ac9c1f0d56 Security: replace operator[] with at 
For std::string and std::vector, replace operator[] with at.  This was
done using an automated process.  See README.hardening for details.
 2013-10-18 10:45:14 -04:00
Jay Berkenbilt
10bceb552f Security: sanitize /W in xref stream 
The /W array was not sanitized, possibly causing an integer overflow
in a multiplication. An analysis of the code suggests that there were
no possible exploits based on this since the problems were in checking
expected values but bounds checks were performed on actual values.
 2013-10-09 20:57:07 -04:00
Jay Berkenbilt
66e63b8667 Prepare 5.0.0 release 2013-07-10 12:29:13 -04:00
Jay Berkenbilt
cee2592ed1 Change API/ABI and withdraw 4.2.0 
4.2.0 was binary incompatible in spite of there being no deletions or
changes to any public methods.  As such, we have to bump the ABI and
are fixing some API breakage while we're at it.

Previous 4.3.0 target is now 5.1.0.
 2013-07-10 11:30:13 -04:00
Jay Berkenbilt
f31e526d67 Prepare 4.2.0 release 2013-07-07 19:43:16 -04:00
Jay Berkenbilt
a85007cb0d Handle more broken files 
Space rather than newline after xref, missing /ID in trailer for
encrypted file.  This enables qpdf to handle some files that xpdf can
handle.  Adobe reader can't necessarily handle them.
 2013-06-15 12:40:01 -04:00
Jay Berkenbilt
a3576a7359 Bug fix: handle generation > 0 when generating object streams 
Rework QPDFWriter to always track old object IDs and QPDFObjGen
instead of int, thus not discarding the generation number.  Switch to
QPDF::getCompressibleObjGen() to properly handle the case of an old
object eligible for compression that has a generation of other than
zero.
 2013-06-14 14:58:09 -04:00
Jay Berkenbilt
96eb965115 Use QPDFObjectHandle::getObjGen() where appropriate 
In internal code and examples, replace calls to getObjectID() and
getGeneration() with calls to getObjGen() where possible.
 2013-06-14 14:58:09 -04:00
Jay Berkenbilt
d88231e01e Promote QPDF::ObjGen to top-level object QPDFObjGen 2013-06-14 14:58:08 -04:00
Jay Berkenbilt
f02c5f5e12 Final preparation for 4.1.0 release 2013-04-14 15:03:51 -04:00
Jay Berkenbilt
ed19516aa7 Fix unused local variable warnings 2013-03-04 16:45:16 -05:00
Jay Berkenbilt
30027481f7 Remove all old-style casts from C++ code 2013-03-04 16:45:16 -05:00
Jay Berkenbilt
6c7bf114dc Bug fix: properly handle overridden compressed objects 
When caching objects in an object stream, only cache objects that
still resolve to that stream.  See Changelog mod from this commit for
details.
 2013-02-23 17:51:17 -05:00
Jay Berkenbilt
a844c2a3ab Set version to 4.1.a0 
Next released version will be 4.1.0 since new APIs are being added.
 2013-01-20 15:35:39 -05:00
Jay Berkenbilt
8708fd373d Prepare 4.0.1 release 2013-01-17 09:51:04 -05:00
Jay Berkenbilt
80fa4e01a1 Set version number to 4.0.0+ 2013-01-03 16:42:10 -05:00
Jay Berkenbilt
0e9949afde Update versions for 4.0.0 release 2012-12-31 11:43:27 -05:00
Jay Berkenbilt
3e96148aa5 Fix spelling errors 
Fixed spelling errors in previously published commits and update
spelling dictionary
 2012-12-31 10:32:32 -05:00
Jay Berkenbilt
e57c25814e Support for encryption with /V=5 and /R=5 and /R=6 
Read and write support is implemented for /V=5 with /R=5 as well as
/R=6.  /R=5 is the deprecated encryption method used by Acrobat IX.
/R=6 is the encryption method used by PDF 2.0 from ISO 32000-2.
 2012-12-31 10:32:32 -05:00
Jay Berkenbilt
93ac1695a4 Support files with only attachments encrypted 
Test cases added in a future commit since they depend on /R=6 support.
 2012-12-31 10:32:32 -05:00
Jay Berkenbilt
774584163f Add ExtensionLevel support to version handling 
All version operations are now fully aware of extension levels.
 2012-12-31 05:36:50 -05:00
Jay Berkenbilt
04c203ae06 Eliminate flattenScalarReferences 2012-12-31 05:36:48 -05:00
Jay Berkenbilt
b4e7d6ed32 Improve memory safety of finding PDF header 2012-12-25 15:13:44 -05:00
Jay Berkenbilt
7f84239cad Find PDF header anywhere in the first 1024 bytes 2012-12-25 14:43:37 -05:00
Jay Berkenbilt
f256670eba Ignore objects with offset 0 2012-11-20 13:57:37 -05:00
Jay Berkenbilt
041397fdab Allow reading from InputSource and writing to Pipeline 
Allowing users to subclass InputSource and Pipeline to read and write
from/to arbitrary sources provides the maximum flexibility for users
who want to read and write from other than files or memory.
 2012-09-23 17:42:26 -04:00
Jay Berkenbilt
8c99e4a6c0 Indicate pre-release version 2012-09-23 17:41:08 -04:00
Jay Berkenbilt
b4dc0f072a Prepare 3.0.2 release 2012-09-06 15:47:58 -04:00
Jay Berkenbilt
59432b5c70 Prepare 3.0.1 release 2012-08-11 13:41:18 -04:00
Jay Berkenbilt
511e68758c Update version to 3.0.0 2012-08-02 06:52:33 -04:00
Jay Berkenbilt
2280c4f6d1 Update documentation and version numbers 
3.0.rc1
 2012-07-28 22:03:36 -04:00
Jay Berkenbilt
6bbea4baa0 Implement QPDFObjectHandle::parse 
Move object parsing code from QPDF to QPDFObjectHandle and
parameterize the parts of it that are specific to a QPDF object.
Provide a version that can't handle indirect objects and that can be
called on an arbitrary string.

A side effect of this change is that the offset used when reporting
invalid stream length has changed, but since the new value seems like
a better value than the old one, the test suite has been updated
rather than making the code backward compatible.  This only effects
the offset reported for invalid streams that lack /Length or have an
invalid /Length key.

Updated some test code and exmaples to use QPDFObjectHandle::parse.

Supporting changes include adding a BufferInputSource constructor that
takes a string.
 2012-07-21 09:06:10 -04:00
Jay Berkenbilt
f3e267fce2 Move readToken from QPDF to QPDFTokenizer 2012-07-21 09:06:10 -04:00
Jay Berkenbilt
15eaed5c52 Refactor: pull *InputSource out of QPDF 
InputSource, FileInputSource, and BufferInputSource are now top-level
classes instead of privately nested inside QPDF.
 2012-07-21 09:06:06 -04:00
Jay Berkenbilt
8657c6f004 Prevent seeking before beginning of BufferInputSource 2012-07-18 09:50:05 -04:00
Jay Berkenbilt
e7b8f297ba Support copying objects from another QPDF object 
This includes QPDF::copyForeignObject and supporting foreign objects
as arguments to addPage*.
 2012-07-11 15:54:33 -04:00
Jay Berkenbilt
8a217eb3a2 Add concept of reserved objects 
QPDFObjectHandle::{new,is,assert}Reserved, QPDF::replaceReserved
provide a mechanism to add objects to a PDF file when there are
circular references.  This is a prerequisite to copying objects from
one PDF to another.
 2012-07-10 23:34:32 -04:00
Jay Berkenbilt
2266c6232b Rework InputSource::readLine to make it much more efficient 
This rework makes xref reconstruction run much faster and use much
less memory.
 2012-06-27 06:48:06 -04:00
Jay Berkenbilt
736bafbb9c Rename seek functions in QUtil 2012-06-26 23:10:10 -04:00
Jay Berkenbilt
5e3167e856 Set version to 3.0.a0 2012-06-25 21:35:30 -04:00
Jay Berkenbilt
1a3e88ca09 Fix large file support for 32-bit Linux 2012-06-25 10:51:44 -04:00
Jay Berkenbilt
8318d81ada Fix and test support for files >= 4 GB 2012-06-24 15:56:50 -04:00
Jay Berkenbilt
781c313058 Change QPDF_Integer from int to long long 
This makes it possible to store offsets that are larger than 2 GB in
the trailer dictionary.
 2012-06-24 15:20:01 -04:00
Jay Berkenbilt
4f305488d8 Improve the FILE* version of QPDF::processFile 2012-06-23 18:23:06 -04:00
Jay Berkenbilt
b6bdc0f595 Add factory methods for creating empty arrays and dictionaries. 
Also updated pdf_from_scratch test driver to use the new factories,
and made some cosmetic improvements and documentation updates for the
emptyPDF() method.
 2012-06-22 09:46:33 -04:00
Jay Berkenbilt
a0768e4190 Add QPDF::emptyPDF() and pdf_from_scratch test code 2012-06-21 23:09:05 -04:00
Jay Berkenbilt
81e8752362 Use qpdf_offset_t in place of off_t in public APIs. 
off_t is used internally only when needed to talk to standard
libraries.  This requires that the "long long" type be supported by
the compiler.
 2012-06-21 21:23:24 -04:00
Jay Berkenbilt
e01ae1968b Split page handling APIs into a separate source file 2012-06-21 15:01:02 -04:00
Tobias Hoffmann
5d3f93be29 Added first version of pages API. 2012-06-21 15:01:02 -04:00
Tobias Hoffmann
47a846a7e0 Added method to clear pages cache. 2012-06-21 15:01:02 -04:00
Jay Berkenbilt
bc1c4bb578 Add QPDF::processFile that takes an open FILE* 2012-06-21 08:00:35 -04:00
Jay Berkenbilt
5d4cad9c02 ABI change: fix use of off_t, size_t, and integer types 
Significantly improve the code's use of off_t for file offsets, size_t
for memory sizes, and integer types in cases where there has to be
compatibility with external interfaces.  Rework sections of the code
that would have prevented qpdf from working on files larger than 2 (or
maybe 4) GB in size.
 2012-06-20 15:20:26 -04:00
Jay Berkenbilt
8e9fe21316 Update for 2.3.1 2011-12-28 17:19:40 -05:00
Jay Berkenbilt
11314a9551 Don't declare any PCRE objects static. 2011-12-28 14:32:33 -05:00
Jay Berkenbilt
1d1d21d3fe ready for 2.3.0 release 2011-08-11 15:34:41 -04:00
Jay Berkenbilt
76b1659177 enhance PointerHolder so that it can explicitly be told to use delete [] instead of delete, thus making it useful to run valgrind over qpdf during its test suite 2011-08-11 11:57:37 -04:00
Jay Berkenbilt
da39d2b1b1 2.3.a1 2011-08-10 16:48:00 -04:00
Jay Berkenbilt
7dc197ef88 implement replace and swap 2011-08-10 12:42:48 -04:00
Jay Berkenbilt
9de1f4826b 2.2.4 
git-svn-id: svn+q:///qpdf/trunk@1062 71b93d88-0707-0410-a8cf-f5a4172ac649
 2011-06-25 18:39:05 +00:00
Jay Berkenbilt
aeb892f99b accept stream keyword with CR only 
git-svn-id: svn+q:///qpdf/trunk@1052 71b93d88-0707-0410-a8cf-f5a4172ac649
 2011-04-30 21:46:09 +00:00
Jay Berkenbilt
c551b972f6 update version to 2.2.3, update copyright to 2011 
git-svn-id: svn+q:///qpdf/trunk@1051 71b93d88-0707-0410-a8cf-f5a4172ac649
 2011-04-30 19:19:30 +00:00
Jay Berkenbilt
a8f2248729 handle files with object 0 as a real object 
git-svn-id: svn+q:///qpdf/trunk@1049 71b93d88-0707-0410-a8cf-f5a4172ac649
 2011-01-31 14:59:42 +00:00
Jay Berkenbilt
c595fd7fbf 2.2.2 
git-svn-id: svn+q:///qpdf/trunk@1045 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-10-04 15:26:40 +00:00
Jay Berkenbilt
df1fa5291c 2.2.1 
git-svn-id: svn+q:///qpdf/trunk@1037 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-10-01 11:07:12 +00:00
Jay Berkenbilt
a72ce95c92 setOutputStreams 
git-svn-id: svn+q:///qpdf/trunk@1035 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-10-01 11:02:35 +00:00
Jay Berkenbilt
9f444ffef3 add QPDF::processMemoryFile and API additions to support it 
git-svn-id: svn+q:///qpdf/trunk@1034 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-10-01 10:20:38 +00:00
Jay Berkenbilt
a7e269537d update code to new PointerHolder, and reintroduce change that was accidentally backed out 
git-svn-id: svn+q:///qpdf/trunk@1031 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-09-24 20:45:18 +00:00
Jay Berkenbilt
ce8b1ba6a5 convert file to a PointerHolder<InputSource> so it could be either a file or a buffer; also fix a bug in BufferInputSource::seek 
git-svn-id: svn+q:///qpdf/trunk@1030 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-09-24 19:10:08 +00:00
Jay Berkenbilt
047bcfcaa6 treat empty objects as null 
git-svn-id: svn+q:///qpdf/trunk@1027 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-09-06 02:17:55 +00:00
Jay Berkenbilt
6b4d231245 2.2.0 
git-svn-id: svn+q:///qpdf/trunk@1016 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-14 16:43:18 +00:00
Jay Berkenbilt
f7a18c42a0 remove stray + 
git-svn-id: svn+q:///qpdf/trunk@1012 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-14 15:55:17 +00:00
Jay Berkenbilt
1ff024fafc update version numbers 
git-svn-id: svn+q:///qpdf/trunk@1004 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-08 21:19:58 +00:00
Jay Berkenbilt
6f2bd7eb3a newStream 
git-svn-id: svn+q:///qpdf/trunk@991 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-08-05 20:20:52 +00:00
Jay Berkenbilt
6755a86734 comment on memory leak fix 
git-svn-id: svn+q:///qpdf/trunk@979 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-06-06 18:03:21 +00:00
Jay Berkenbilt
9496b2cb20 fix memory leak 
git-svn-id: svn+q:///qpdf/trunk@976 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-06-06 13:32:08 +00:00
Jay Berkenbilt
eef7154412 typo 
git-svn-id: svn+q:///qpdf/trunk@971 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-06-05 19:50:30 +00:00
Jay Berkenbilt
62c1b42328 detect degenerate case of empty xref table 
git-svn-id: svn+q:///qpdf/trunk@970 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-06-05 19:48:32 +00:00
Jay Berkenbilt
f96c63cf3d 2.1.5 
git-svn-id: svn+q:///qpdf/trunk@962 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-04-25 15:05:11 +00:00
Jay Berkenbilt
349c80c895 2.1.4 
git-svn-id: svn+q:///qpdf/trunk@958 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-04-18 23:25:12 +00:00
Jay Berkenbilt
117f690c8e update for 2.1.3 
git-svn-id: svn+q:///qpdf/trunk@949 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-03-27 16:03:04 +00:00
Jay Berkenbilt
375b494e57 update for 2.1.2 
git-svn-id: svn+q:///qpdf/trunk@934 71b93d88-0707-0410-a8cf-f5a4172ac649
 2010-01-25 01:21:06 +00:00
Jay Berkenbilt
8fbba4d48c 2.1.1 -- gcc 4.4 fixes 
git-svn-id: svn+q:///qpdf/trunk@925 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-12-14 02:35:31 +00:00
Jay Berkenbilt
91ce55a4e3 2.1 
git-svn-id: svn+q:///qpdf/trunk@913 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-30 23:58:19 +00:00
Jay Berkenbilt
ace2a031b5 prepare 2.1.rc1 for release 
git-svn-id: svn+q:///qpdf/trunk@901 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-24 04:47:17 +00:00
Jay Berkenbilt
398354b6f0 update C API for error retrieval 
git-svn-id: svn+q:///qpdf/trunk@830 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-20 00:24:44 +00:00
Jay Berkenbilt
3f8c4c2736 categorize all error messages and include object information if available 
git-svn-id: svn+q:///qpdf/trunk@829 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-19 23:09:19 +00:00
Jay Berkenbilt
e25910b59a reading crypt filters is largely implemented but not fully tested 
git-svn-id: svn+q:///qpdf/trunk@812 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-17 23:37:55 +00:00
Jay Berkenbilt
c13bc66de8 checkpoint -- partially implemented /V=4 encryption 
git-svn-id: svn+q:///qpdf/trunk@811 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-17 18:54:51 +00:00
Jay Berkenbilt
846c9f6bcc checkpoint -- started doing some R4 encryption support 
git-svn-id: svn+q:///qpdf/trunk@807 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-17 03:14:47 +00:00
Jay Berkenbilt
44cbd3d4b4 do DLL_EXPORT only in header files and only at the class or top-level function level 
git-svn-id: svn+q:///qpdf/trunk@796 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-12 01:15:55 +00:00
Jay Berkenbilt
c1e53f1480 bug fix: more gracefully handle xref stream with too many entries 
git-svn-id: svn+q:///qpdf/trunk@747 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-10-04 23:56:56 +00:00
Jay Berkenbilt
84ec83e925 basic implementation of C API 
git-svn-id: svn+q:///qpdf/trunk@725 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-09-27 14:39:04 +00:00
Jay Berkenbilt
f3d7c26de1 removed qexc; non-compatible ABI change 
git-svn-id: svn+q:///qpdf/trunk@709 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-09-26 18:36:04 +00:00
Jay Berkenbilt
1e74c03acd stick DLL_EXPORT in front of every public method of every public class 
git-svn-id: svn+q:///qpdf/trunk@688 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-08-06 19:00:25 +00:00
Jay Berkenbilt
7acc0498eb cast arg to isspace to unsigned char 
git-svn-id: svn+q:///qpdf/trunk@683 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-07-13 00:42:48 +00:00
Jay Berkenbilt
a9987ab570 Fix a few compiler errors reported correctly my MSVC 9.0. 
Fix libtests test suites to pass on Windows, mostly by dealing with
ascii vs. binary and NL vs. CRNL change ($td->NORMALIZE_NEWLINES).
Convert some test suites to use fread instead of read.
PCRE.hh: define PCRE_STATIC if on Windows.
Provide cross-platform function for getting current time instead of
using time(0).


git-svn-id: svn+q:///qpdf/trunk@678 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-07-12 22:52:13 +00:00
Jay Berkenbilt
599daddb47 decode streams on check, always exit abnormally when warnings are detected 
git-svn-id: svn+q:///qpdf/trunk@660 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-03-08 19:00:19 +00:00
Jay Berkenbilt
91cb7c0a58 fix many typos in comments and strings 
git-svn-id: svn+q:///qpdf/trunk@651 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-02-21 02:54:31 +00:00
Jay Berkenbilt
4499e04b57 better recovery for appended files with damaged cross-reference tables 
git-svn-id: svn+q:///qpdf/trunk@649 71b93d88-0707-0410-a8cf-f5a4172ac649
 2009-02-21 02:31:32 +00:00
Jay Berkenbilt
9a0b88bf77 update release date to actual date 
git-svn-id: svn+q:///qpdf/trunk@599 71b93d88-0707-0410-a8cf-f5a4172ac649
 2008-04-29 12:55:25 +00:00