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  1. PDFBox
  2. PDFBOX-2250

Improve XRef self healing mechanism

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.8.6, 1.8.7, 2.0.0
    • 1.8.8, 2.0.0
    • Parsing
    • None

    Description

      PDFBOX-1769 introduced a "self healing" mechanism to repair corrupt XRef offsets. But that one was just a starter and there remain a lot of issues to be solved. I'm planing to solve at least some of them.

      All fixes and improvements are targeting the non-sequential parser and I won't port those changes to the old parser.

      Attachments

        1. 055794.pdf
          27 kB
          Tilman Hausherr
        2. 113223.pdf
          26 kB
          Tilman Hausherr
        3. PDFBOX-2250-107425-empty-xref.pdf
          144 kB
          Tilman Hausherr
        4. PDFBOX-2250-110264-xref-zeronumber.pdf
          146 kB
          Tilman Hausherr
        5. PDFBOX-2250-229205.pdf
          159 kB
          Tilman Hausherr
        6. PDFBOX-2250-233566.pdf
          36 kB
          Tilman Hausherr

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. PDFBOX-2331 Expected a long type at offset 22112, instead got '_AJ1T'

          • Major - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. PDFBOX-1918 PDF with incorrect startxref

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PDFBOX-2441 Improve XRef self healing mechanism when more than one xref table

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. TIKA-1300 Switch default PDFBox parser to NonSequentialParser

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. PDFBOX-1738 PDF with parsing IOException

          • Major - Major loss of function.
          • Closed

          Activity

            People

              lehmi Andreas Lehmkühler
              lehmi Andreas Lehmkühler
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              Dates

                Created:
                Updated:
                Resolved: