ICEpdf
  1. ICEpdf
  2. PDF-284

Image colors are inverted (white <-> black)

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 4.2
          • Fix Version/s: 4.3.4
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            -

            Description

            The attached PDF displays white as black and black as white. The user mentions that the following exception is thrown but it looks to be EJB related:

            javax.ejb.EJBException: Unexpected Error
            java.lang.AbstractMethodError: org.icepdf.core.pobjects.fonts.nfont.NFontTrueType.toUnicode(C)C
            at org.icepdf.core.util.ContentParser.drawString(ContentParser.java:2180)

            1. PDF File
              9952.pdf
              823 kB
              Tyler Johnson

              Issue Links

              depends on

              Bug - A problem which impairs or prevents the functions of the product. PDF-270 PDF renders as black page

              • Major - Major loss of function.
              • Closed

                Activity

                Ascending order - Click to sort in descending order
                Hide
                Permalink
                Patrick Corless added a comment -

                JFIF colour issue or indexed colour issue

                Show
                Patrick Corless added a comment - JFIF colour issue or indexed colour issue
                Hide
                Permalink
                Patrick Corless added a comment -

                Looks like another JFIF colour issue or possibly an index colour issue, either way need a a closer look.

                As for the toUnicode error there might be a class path issue with an older version of ICEpdf. In ICEpdf 4.2 the toUnicode() method signature changed slightly which might be causing the error if there is a jar misalignment.

                Show
                Patrick Corless added a comment - Looks like another JFIF colour issue or possibly an index colour issue, either way need a a closer look. As for the toUnicode error there might be a class path issue with an older version of ICEpdf. In ICEpdf 4.2 the toUnicode() method signature changed slightly which might be causing the error if there is a jar misalignment.
                Hide
                Permalink
                Patrick Corless added a comment -

                Pushing out to 5.0, still no hints as to what is going wrong with the decode.

                Show
                Patrick Corless added a comment - Pushing out to 5.0, still no hints as to what is going wrong with the decode.
                Hide
                Permalink
                Patrick Corless added a comment -

                Interestingly enough this is a jpeg that has an indexed colour model that we are trying to convert to grey colour model. I'm pretty sure we can assume that index is grey and new need to do the extra work. I've updated the code accordingly and the image renders fine but I'll still have to run the change through QA as it is high risk.

                Show
                Patrick Corless added a comment - Interestingly enough this is a jpeg that has an indexed colour model that we are trying to convert to grey colour model. I'm pretty sure we can assume that index is grey and new need to do the extra work. I've updated the code accordingly and the image renders fine but I'll still have to run the change through QA as it is high risk.

                  People

                  • Assignee:
                    Patrick Corless
                    Reporter:
                    Tyler Johnson
                  • Votes:
                    0 Vote for this issue
                    Watchers:
                    0 Start watching this issue

                    Dates

                    • Created:
                      Updated:
                      Resolved: