ICEpdf
  1. ICEpdf
  2. PDF-415

Chinese Characters are not rendering properly

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 4.3.2
          • Fix Version/s: 4.4, 5.0.0 alpha1, 5.0
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            ICEpdf PRO v.4.3.2, Java Vendor: Sun J2SE 1.6.0_26, Sun J2SE 1.6.0_25

            Description

            Attached PDFs can be used to reproduce the issue.
            Screenshot outcome is attached as well
            1. PDF File
              ch03.pdf
              311 kB
              Evgheni Sadovoi
            1. PUR-133.png
              471 kB

              Issue Links

              blocks

              Bug - A problem which impairs or prevents the functions of the product. PDF-409 Chinese fonts render but are not accurate

              • Major - Major loss of function.
              • Closed
              depends on

              Bug - A problem which impairs or prevents the functions of the product. PDF-409 Chinese fonts render but are not accurate

              • Major - Major loss of function.
              • Closed

                Activity

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                Patrick Corless added a comment -

                I have good reason to think this is a duplicate of PDF-409. I'll update it once I've had a change to take a closer. look.

                Show
                Patrick Corless added a comment - I have good reason to think this is a duplicate of PDF-409 . I'll update it once I've had a change to take a closer. look.
                Hide
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                Patrick Corless added a comment -

                I spent a few hours yesterday taking a look at this issue. The glyph that aren't being painted correctly fall into the TrueType composite Glyph category. In short when a glyph is parsed it made up of a number of smaller components.

                After reviewing the TrueType font spec for composite glyph descriptors I can see a few potential issues with our buildComposite() method. A snap to grid mode doesn't appear to be implemented and I think we might not be correctly handling flag mode WE_HAVE_A_TWO_BY_TWO which allows the glyph to be scaled and skewed.

                I'll need some more time to pick through the bits on this one but I'm pretty confident that this is where the problem is in our code.

                Show
                Patrick Corless added a comment - I spent a few hours yesterday taking a look at this issue. The glyph that aren't being painted correctly fall into the TrueType composite Glyph category. In short when a glyph is parsed it made up of a number of smaller components. After reviewing the TrueType font spec for composite glyph descriptors I can see a few potential issues with our buildComposite() method. A snap to grid mode doesn't appear to be implemented and I think we might not be correctly handling flag mode WE_HAVE_A_TWO_BY_TWO which allows the glyph to be scaled and skewed. I'll need some more time to pick through the bits on this one but I'm pretty confident that this is where the problem is in our code.
                Hide
                Permalink
                Patrick Corless added a comment -

                After several months of development it can be safely said that we support TrueTypeFont hinting int he PRO font engine. We'll backport this feature to 4.x for our client. The fix is also included in 5.0.

                Show
                Patrick Corless added a comment - After several months of development it can be safely said that we support TrueTypeFont hinting int he PRO font engine. We'll backport this feature to 4.x for our client. The fix is also included in 5.0.
                Hide
                Permalink
                Patrick Corless added a comment -

                Closing.

                Show
                Patrick Corless added a comment - Closing.

                  People

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

                    Dates

                    • Created:
                      Updated:
                      Resolved: