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The preservation of outlines didn't provide very useful behavior anyway as it copied all outlines but most didn't work. This implementation also caused a very significant performance hit and so is being reverted until a proper solution can be coded. The eventual solution will not be compatible with the reverted solution anyway, so it's best not to leave this in.
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JSON serialization was preserving the value as presented, but JSON doesn't accept decimal values without a 0 before the decimal point.
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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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The inline image token erroneously included the delimiter that followed EI. The ObjectHandle created from it was correct.
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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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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.
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When generating appearance streams for variable text annotations, properly handle the cases of there being no appearance dictionary, no appearance stream, or an appearance stream with no BMC..EMC marker.
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With the exception of form field annotations when /NeedAppearances is true, remove annotations that don't have appearance streams when flattening. There is no reason to keep these when flattening since they are invisible. This may include unchecked checkboxes, unshown popup windows, etc.
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Allow fine control over how passwords are encoded for writing, and allow password for reading to be given as a hexademical encoded string. Allow suppression of password recovery as a means to ensure that the password you specify is actually the right one.
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Setting encryption permissions for R >= 3 set permission bits in groups corresponding to menu options in Acrobat 5. The new API allows the bits to be set individually.
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The tests are in a separate commit so the bug-fix commit can be taken as a patch for older versions.
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If set, we avoid using Windows I/O HANDLE, which is disallowed in some versions of the Windows SDK, such as for Windows phones. QUtil::same_file will always return false in this case. Only applies to Windows builds.