ICEpdf
  1. ICEpdf
  2. PDF-17

ICEpdf OS Cmaping error

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 3.0
          • Fix Version/s: 3.1
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            ICEpdf OS, PRO version if OK.

            Description

            The PDF in question has CID font and a respective toUniocde CMap file. There is a small amount of text that is not being mapped correctly from CID to unicode. Further investigation is needed to look into the cause of the mapping issue. My guess is that the CMap parser is incomplete.

              Activity

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              Patrick Corless added a comment -

              CID test file

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              Patrick Corless added a comment - CID test file
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              Patrick Corless added a comment -

              This turned out to be a very interesting bug. The file in question showed a couple issue with our cmap parsers for both the Pro and OS version of ICEpdf.

              Both the pro and os version of the cmap did not correct handle the cmap entries with values for beginbfrange in the format <src1> <srcn> [<dest1> <dest2> ...]

              Also the OS version did not correctly handle multiple entires for beginbfchar and beginbfrange definitions.

              As a result both the OS and PRO version do a much better job at text extraction and font substitution. I've increased the severity of the cmap parsing errors so that they will be more visible when they occur, hopefully this will help identify any future issue.

              Show
              Patrick Corless added a comment - This turned out to be a very interesting bug. The file in question showed a couple issue with our cmap parsers for both the Pro and OS version of ICEpdf. Both the pro and os version of the cmap did not correct handle the cmap entries with values for beginbfrange in the format <src1> <srcn> [<dest1> <dest2> ...] Also the OS version did not correctly handle multiple entires for beginbfchar and beginbfrange definitions. As a result both the OS and PRO version do a much better job at text extraction and font substitution. I've increased the severity of the cmap parsing errors so that they will be more visible when they occur, hopefully this will help identify any future issue.
              Hide
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              Patrick Corless added a comment -

              ICEpdf 3.1.0 has been released, closing issues.

              Show
              Patrick Corless added a comment - ICEpdf 3.1.0 has been released, closing issues.

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
                • Votes:
                  1 Vote for this issue
                  Watchers:
                  1 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved: