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2018-02-19Properly handle strings with PDF Doc Encoding (fixes #179)Jay Berkenbilt
The QPDF_String::getUTF8Val() method was not treating strings that weren't explicitly Unicode as PDF Doc Encoded. This only affects characters in the range 0x80 through 0xa0.
2018-02-19Add C API for checking PDF filesJay Berkenbilt
2018-02-19More robust handling of type errorsJay Berkenbilt
Give objects descriptions and context so it is possible to issue warnings instead of fatal errors for attempts to access objects of the wrong type.
2018-02-19Push members of QPDFObjectHandle into a Members objectJay Berkenbilt
As in other cases, this is to enable adding new member variables in the future without breaking ABI compatibility.
2018-02-19Simplify TokenFilter interfaceJay Berkenbilt
Expose Pl_QPDFTokenizer, and have it do more of the work of managing the token filter's pipeline.
2018-02-19Move Pl_QPDFTokenizer to public interfaceJay Berkenbilt
2018-02-19Add additional interface for filtering page contentsJay Berkenbilt
2018-02-19Implement TokenFilter and refactor Pl_QPDFTokenizerJay Berkenbilt
Implement a TokenFilter class and refactor Pl_QPDFTokenizer to use a TokenFilter class called ContentNormalizer. Pl_QPDFTokenizer is now a general filter that passes data through a TokenFilter.
2018-02-19Add coalesce contents capabilityJay Berkenbilt
2018-02-19Refactor parseContentStreamJay Berkenbilt
2018-02-19Remove redundant methodJay Berkenbilt
Remove a redundant method that was equal to another one with additional arguments. This breaks binary compatibility, but there are other ABI breaking changes in the upcoming release, so now is the time to do it.
2018-02-19Inline image token typeJay Berkenbilt
2018-02-19Push QPDFTokenizer members into a nested structureJay Berkenbilt
This is for protection against future ABI breaking changes.
2018-02-19Lexer enhancements: EOF, comment, spaceJay Berkenbilt
Significant enhancements to the lexer to improve EOF handling and to support comments and spaces as tokens. Various other minor issues were fixed as well.
2018-02-19Add option to save pass 1 of lineariziationJay Berkenbilt
This is useful only for debugging the linearization code.
2018-02-05Fix linearization for files with nonstandard ID lengthJay Berkenbilt
2018-01-29Clarify some commentsJay Berkenbilt
2018-01-14Allow raw encryption key to be specifiedJay Berkenbilt
Add options to enable the raw encryption key to be directly shown or specified. Thanks to Didier Stevens <didier.stevens@gmail.com> for the idea and contribution of one implementation of this idea.
2018-01-14Add QUtil::hex_decodeJay Berkenbilt
2018-01-14Update copyright to 2018Jay Berkenbilt
2017-09-14Additionally license under Apache License version 2.0Jay Berkenbilt
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.
2017-09-12Improve message for stream decoding errorJay Berkenbilt
Tweak the message so that we inform the user that we are mitigating data loss.
2017-09-12Update C API with new QPDFWriter methodsJay Berkenbilt
2017-08-29Detect integer overflow/underflowJay Berkenbilt
2017-08-29Fix memory leak with bad jpeg dataJay Berkenbilt
2017-08-29Clean up circular references in QPDF_StreamJay Berkenbilt
2017-08-27Fix error caught by clangJay Berkenbilt
2017-08-26Parse iteratively to avoid stack overflow (fixes #146)Jay Berkenbilt
2017-08-22Spell checkJay Berkenbilt
2017-08-22Limit token length during xref recoveryJay Berkenbilt
While scanning the file looking for objects, limit the length of tokens we allow. This prevents us from getting caught up in reading a file character by character while digging through large streams.
2017-08-22Push QPDFWriter member variables into a nested classJay Berkenbilt
2017-08-22Push QPDF member variables into a nested classJay Berkenbilt
Pushing member variables into a nested class enables addition of new member variables without breaking binary compatibility.
2017-08-22Update copyright to 2017Jay Berkenbilt
2017-08-22Combine writePCLm with writeStandardJay Berkenbilt
Reduce code duplication
2017-08-22Combine PCLm header into writeHeaderJay Berkenbilt
2017-08-22Update header documentation and ChangeLog entry for PCLmJay Berkenbilt
2017-08-22QPDFWriter: Add setPCLm() and writePCLm() methodsSahil Arora
* Add support for PCLm using setPCLm() and writePCLm() methods in QPDFWriter.hh and QPDFWriter.cc * Add a function writePCLmHeader() for PCLm header in QPDFWriter
2017-08-21Precheck streams by defaultJay Berkenbilt
There is no need for a --precheck-streams option. We can do the precheck without imposing any penalty, only re-encoding the stream if it fails the first time.
2017-08-21Enable finer grained control of stream decodingJay Berkenbilt
This commit adds several API methods that enable control over which types of filters QPDF will attempt to decode. It also adds support for /RunLengthDecode and /DCTDecode filters for both encoding and decoding.
2017-08-21Implement Pl_DCT pipelineJay Berkenbilt
Additional testing is added in later commits to be supported by additional changes in the library.
2017-08-19Implement Pl_RunLength pipelineJay Berkenbilt
2017-08-13Add page rotation (fixes #132)Jay Berkenbilt
2017-08-11Read xref table without PCREJay Berkenbilt
Also accept more errors than before.
2017-08-11Improve stream length recoveryJay Berkenbilt
Eliminate PCRE and find endobj not preceded by endstream. Be more lax about placement of endstream and endobj.
2017-08-11Find starxref without PCREJay Berkenbilt
2017-08-11Find header without PCREJay Berkenbilt
2017-08-11Implement findFirst and findLast in InputSourceJay Berkenbilt
Preparing to refactor some pattern searching code to use these instead of their own memchr loops. This should simplify the code that replaces PCRE.
2017-08-11Allow QPDFTokenizer::readToken to return bad tokensJay Berkenbilt
Sometimes we want to ignore bad tokens rather than having them throw an exception. A coverage case is commented out here and added in a later commit.
2017-08-11Remove unused PointerHolder interfaceJay Berkenbilt
Also fix a bug resulting from incorrect use of PointerHolder because of this unused parameter.
2017-08-05QUtil::strcasecmpJay Berkenbilt
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