ICEpdf
  1. ICEpdf
  2. PDF-354

Font engine not correctly handling CID and GID values that differ

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 4.2.2
          • Fix Version/s: 4.3
          • Component/s: Font Engine
          • Labels:
            None
          • Environment:
            PRO

            Description

            A client sent in a set of PDFs that had embedded font programs but the font engine could not correctly display the glyphs. The glyphs where asian and the font was a CID font with with CIDtoGID that wasn't the standard identity mapping. The font engine and the respective Cmap is incorrectly initialized making it impossible to correctly map a none identity cmap.

            For example consider the cid's below, the current algorithm that organizes and compresses the CID -> GID makes it imposible to retreive the GID value for a given CID because CID and GID are not equal.

            CID GID
            0x0704 = 1796 14
            0x0db3 = 3507 24
            0x08ba = 2234 5
            ox0d15 = 3349 53

              Activity

              Repository Revision Date User Message
              ICEsoft Public SVN Repository #26917 Fri Dec 16 04:33:18 MST 2011 patrick.corless PDF-354 touched up padding for uneven hex strings, which was causing some types of images not to load.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/HexStringObject.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #26901 Thu Dec 15 12:30:32 MST 2011 patrick.corless PDF-354 clean up hex string processing for 2 and 4 byte cid's.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/HexStringObject.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/LiteralStringObject.java
              Commit graph ADD /icepdf/trunk/icepdf/core/src/org/icepdf/core/util/content
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #26859 Tue Dec 13 12:48:54 MST 2011 patrick.corless PDF-354 update to how cidToGid cmaps are applied when working with CFF fonts.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/fonts/ofont/CMap.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/fonts/CMap.java

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
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                  Dates

                  • Created:
                    Updated:
                    Resolved: