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https://issues.apache.org/jira/browse/PDFBOX-4211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr resolved PDFBOX-4211.
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Resolution: Fixed
Assignee: Tilman Hausherr
Thank you! No regressions.
> Some text is missing in JBIG2 images
> ------------------------------------
>
> Key: PDFBOX-4211
> URL: https://issues.apache.org/jira/browse/PDFBOX-4211
> Project: PDFBox
> Issue Type: Bug
> Components: JBIG2
> Affects Versions: 3.0.0 JBIG2
> Reporter: Jani Pehkonen
> Assignee: Tilman Hausherr
> Priority: Major
> Fix For: 3.0.1 JBIG2
>
> Attachments: EncodedTable.patch, page_iii_(2).pdf
>
>
> [This
> PDF|http://library.sciencemadness.org/library/books/unitized_experiments_in_ochem.pdf]
> has problems.
> See pages "iii" (2), "ix" (6), "x" (7) etc. These pages have most of their
> text missing or in wrong position when rendered in PDFDebugger. Each page is
> a JBIG2 image that uses Huffman encoding. You may need to use for example
> -Xmx1000M to avoid OutOfMemoryError because the JBIG2 images are very large.
> Apply my patch to file EncodedTable.java in package
> org.apache.pdfbox.jbig2.decoder.huffman. I have fixed one line of code that
> does not follow the JBIG2 standard.
> The JBIG2 standard is freely available
> [here|https://www.itu.int/rec/T-REC-T.88-200002-I/en]
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