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2022-01-27Remove some if statements and simplify some boolean expressionsm-holger
Use QPDFObjectHandle::isNameAndEquals, isDictionaryOfType and isStreamOfType.
2021-02-25Update examples to use copyStream()Jay Berkenbilt
2021-01-02QPDFPageObjectHelper: getPageImages -> getImagesJay Berkenbilt
2020-04-16Fix warnings reported by -Wshadow=local (fixes #431)Jay Berkenbilt
2020-04-09Fix memory leak in pdf-invert-imagesJay Berkenbilt
A class can't have a PointerHolder to itself since PointerHolder doesn't have the concept of weak references.
2020-04-08Improve pdf-invert-images exampleJay Berkenbilt
2019-06-21Fix sign and conversion warnings (major)Jay Berkenbilt
This makes all integer type conversions that have potential data loss explicit with calls that do range checks and raise an exception. After this commit, qpdf builds with no warnings when -Wsign-conversion -Wconversion is used with gcc or clang or when -W3 -Wd4800 is used with MSVC. This significantly reduces the likelihood of potential crashes from bogus integer values. There are some parts of the code that take int when they should take size_t or an offset. Such places would make qpdf not support files with more than 2^31 of something that usually wouldn't be so large. In the event that such a file shows up and is valid, at least qpdf would raise an error in the right spot so the issue could be legitimately addressed rather than failing in some weird way because of a silent overflow condition.
2018-06-21Convert examples to use new page helper classesJay Berkenbilt
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.
2015-11-01Comment use of static ID in examplesJay Berkenbilt
Make sure people know that static ID should be used only for testing.
2013-11-30Allow -DNO_GET_ENVIRONMENT to avoid GetEnvironmentVariableJay Berkenbilt
If NO_GET_ENVIRONMENT is #defined at compile time on Windows, do not call GetEnvironmentVariable. QUtil::get_env will always return false. This option is not available through configure. This was added to support a specific user's requirements to avoid calling GetEnvironmentVariable from the Windows API. Nothing in qpdf outside the test coverage system in qtest relies on QUtil::get_env.
2013-06-14Use QPDFObjectHandle::getObjGen() where appropriateJay Berkenbilt
In internal code and examples, replace calls to getObjectID() and getGeneration() with calls to getObjGen() where possible.
2013-03-04Remove all old-style casts from C++ codeJay Berkenbilt
2012-07-07Don't require stream data provider to know length in advanceJay Berkenbilt
Breaking API change: length parameter has disappeared from the StreamDataProvider version of QPDFObjectHandle::replaceStreamData since it is no longer necessary to compute it in advance. This breaking change is justified by the fact that removing the length parameter provides the caller an opportunity to simplify the calling code.
2010-09-24update code to new PointerHolder, and reintroduce change that was ↵Jay Berkenbilt
accidentally backed out git-svn-id: svn+q:///qpdf/trunk@1031 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-08-06invert images exampleJay Berkenbilt
git-svn-id: svn+q:///qpdf/trunk@1001 71b93d88-0707-0410-a8cf-f5a4172ac649
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