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The kfo-PDF files for testing need to be copied using "binmode"…
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qpdf: selecting --keep-open-files=n qpdf: processing 001-kfo.pdf WARNING: 001-kfo.pdf: file is damaged WARNING: 001-kfo.pdf (offset 556): xref not found WARNING: 001-kfo.pdf: Attempting to reconstruct cross-reference table
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There have been issues reported where exceptions are not thrown properly across shared library/DLL boundaries, so add a test specifically to ensure that exceptions are caught as thrown.
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Ensure zlib-flate doesn't link with an old libqpdf
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Since autogenerated files are now committed, we no longer need to rerun ./autogen.sh and actually shouldn't because it could mask errors.
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Also add test cases for additional coverage on image optimization.
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Do not include the trailing EI, and handle cases where EI is not preceded by a delimiter. Such cases have been seen in the wild.
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This hasn't worked or been exercised in years since Adobe stopped releasing a Linux version of reader.
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We've actually seen a PDF file in the wild that contained EI surrounded by delimiters inside the image data, which confused qpdf's naive code. This significantly improves EI detection.
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Add a version of expectInlineImage that takes an input source and searches for EI. This is in preparation for improving the way EI is found. This commit just refactors the code without changing the functionality and adds tests to make sure the old and new code behave identically.
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The inline image token erroneously included the delimiter that followed EI. The ObjectHandle created from it was correct.
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When qpdf can't optimize an image because of an unsupported color space, state this specifically. Recognize that many valid colorspaces are not represented as name objects.
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Make explicit that copyForeignObject can be used on page objects and will copy them properly but not update the pages tree.
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When linearizing a file or getting the list of all pages in a file, detect if the pages tree contains a duplicated page object and, if so, shallow copy it. This makes it possible to have a one to one mapping of page positions to page objects.
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Download external libraries from an isolated branch in github to avoid dependencies on external download locations, which cause sporadic CI build failures.
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Support conversion of pages to form XObjects and placement of form XObjects on pages.
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Add getAttribute for handling inheritable page attributes, and fix getPageImages and annotation flattening code to use it.
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If we end up using our fallback font size when generating appearances for text fields, reflect that in the Tf operator used in the appearance stream.