ICEpdf
  1. ICEpdf
  2. PDF-212

convert failure (PDF -> PNG)

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Minor Minor
          • Resolution: Fixed
          • Affects Version/s: 3.1
          • Fix Version/s: 4.2
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            CentOS5 / Sun java 1.5.0_22
          • Assignee Priority:
            P2

            Description

            I could not convert the PDF to PNG correctly. (one picture was broken)
            The PDF was created by OpenOffice3.1.0 from PowerPoint and we could see it cleary with Adobe reader.
            1. PDF File
              test.pdf
              21 kB
              Tomoaki Tougou
            1. TEST.png
              17 kB

              Activity

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              Tomoaki Tougou created issue -
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              Tomoaki Tougou added a comment -

              PDF was created by OpenOffcie3.1.1.
              PNG was converted by Icepdf 3.1.0 from the PDF

              Show
              Tomoaki Tougou added a comment - PDF was created by OpenOffcie3.1.1. PNG was converted by Icepdf 3.1.0 from the PDF
              Tomoaki Tougou made changes -
              Field Original Value New Value
              Attachment test.pdf [ 12581 ]
              Attachment TEST.png [ 12582 ]
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              Patrick Corless added a comment -

              Thanks for reporting this. I took a quick look at this with the trunk code and it appears to be rogue painting of a white box on the upper right corner of the page, covering most of the pink image.

              In 4.1 I introduced some support for transparency grouping but I wasn't able to complete the implementation, mainly because I lacked examples. I have a hunch that the white box is the result of a transparency group issue. With a little luck I'll get a chance to take a closer look for 4.2.

              Show
              Patrick Corless added a comment - Thanks for reporting this. I took a quick look at this with the trunk code and it appears to be rogue painting of a white box on the upper right corner of the page, covering most of the pink image. In 4.1 I introduced some support for transparency grouping but I wasn't able to complete the implementation, mainly because I lacked examples. I have a hunch that the white box is the result of a transparency group issue. With a little luck I'll get a chance to take a closer look for 4.2.
              Patrick Corless made changes -
              Salesforce Case []
              Fix Version/s 4.2 [ 10243 ]
              Patrick Corless made changes -
              Salesforce Case []
              Assignee Priority P2
              Priority Major [ 3 ] Minor [ 4 ]
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #24078 Wed Mar 02 14:19:25 MST 2011 patrick.corless PDF-212 addition of basic smask handling for non rgba images. Also added support for none standard decode for DeviceGray images.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/functions/Function.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/Stream.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #24079 Wed Mar 02 14:39:56 MST 2011 patrick.corless PDF-212 removed erroneous alterRasterYCbCrA2RGBA_new call intead of alterRasterYCbCr2RGB
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/Stream.java
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              Patrick Corless added a comment -

              This is a tricky issue, the pink card images uses a soft mask to trim the white from the image in question. The soft mask is a gray scale image that has a non standard decode and image in question decodes to an rgb images. So a little work was done to fix up the DeviceGray decode processing and make the rgb image argb and apply the soft mask.

              This all takes a little more processing time but the images shows up property now.

              Show
              Patrick Corless added a comment - This is a tricky issue, the pink card images uses a soft mask to trim the white from the image in question. The soft mask is a gray scale image that has a non standard decode and image in question decodes to an rgb images. So a little work was done to fix up the DeviceGray decode processing and make the rgb image argb and apply the soft mask. This all takes a little more processing time but the images shows up property now.
              Hide
              Permalink
              Patrick Corless added a comment -

              Closing issue.

              Show
              Patrick Corless added a comment - Closing issue.
              Patrick Corless made changes -
              Status Open [ 1 ] Resolved [ 5 ]
              Resolution Fixed [ 1 ]
              Ken Fyten made changes -
              Status Resolved [ 5 ] Closed [ 6 ]

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Tomoaki Tougou
                • Votes:
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                  Dates

                  • Created:
                    Updated:
                    Resolved: