ICEpdf
  1. ICEpdf
  2. PDF-1019

Images cut off in PDF

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 6.1.2
          • Fix Version/s: 6.1.3
          • Component/s: Core/Rendering
          • Labels:
            None
          • Environment:
            All

            Description

            With the provided PDF a few images seem to be cut off at the top of the pages. On the first page the main image is cut off. As well the vertical font on the right hand side isn't filled in. On the second page, the background image/colour is should go all the way to the top.

              Activity

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              Arran Mccullough created issue -
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              Patrick Corless added a comment -

              The issue is related to an implementation issue with our support for blending modes and luminosity support in the PDF transparency model. If they should like to view the PDF with out the blending effects they can use the system property -Dorg.icepdf.core.disableTransparencyGroup= true which will give rendering behavior similar to 5.1.2.

              Show
              Patrick Corless added a comment - The issue is related to an implementation issue with our support for blending modes and luminosity support in the PDF transparency model. If they should like to view the PDF with out the blending effects they can use the system property -Dorg.icepdf.core.disableTransparencyGroup= true which will give rendering behavior similar to 5.1.2.
              Hide
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              Patrick Corless added a comment -

              I spend quite a bit of time reworking our luminosity algorithm but still haven't had much luck cracking this nut fully. The cropped image is do to a an clipping issue when creating the buffers to apply the forms image mask. The second issue that came out of this was related to how we are apply the 'ca' alpha value to a blendComposite. While testing with this PDF it was found that the we don't apply an alpha to the multiply blending mode but rather add another alphaComposite with the alpha after. The generated the correct effect and make a few other PDF render correctly.

              Show
              Patrick Corless added a comment - I spend quite a bit of time reworking our luminosity algorithm but still haven't had much luck cracking this nut fully. The cropped image is do to a an clipping issue when creating the buffers to apply the forms image mask. The second issue that came out of this was related to how we are apply the 'ca' alpha value to a blendComposite. While testing with this PDF it was found that the we don't apply an alpha to the multiply blending mode but rather add another alphaComposite with the alpha after. The generated the correct effect and make a few other PDF render correctly.
              Patrick Corless made changes -
              Field Original Value New Value
              Fix Version/s 6.1.3 [ 13086 ]
              Patrick Corless made changes -
              Status Open [ 1 ] Resolved [ 5 ]
              Resolution Fixed [ 1 ]
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #49182 Thu Sep 08 15:38:33 MDT 2016 patrick.corless PDF-1019 fix clipping issue with gradient paints which was causing some issue with apply smasks.
              Files Changed
              Commit graph MODIFY /icepdf/branches/icepdf-6.1.0/icepdf/core/src/org/icepdf/core/pobjects/ImageUtility.java
              Commit graph MODIFY /icepdf/branches/icepdf-6.1.0/icepdf/core/src/org/icepdf/core/util/content/AbstractContentParser.java
              Commit graph MODIFY /icepdf/branches/icepdf-6.1.0/icepdf/core/src/org/icepdf/core/pobjects/graphics/commands/FormDrawCmd.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #49229 Mon Sep 19 09:27:57 MDT 2016 patrick.corless PDF-1019 rolled back some of the transparency changes, still need to crack this nut.
              Files Changed
              Commit graph MODIFY /icepdf/branches/icepdf-6.1.0/icepdf/core/src/org/icepdf/core/util/content/AbstractContentParser.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #49491 Tue Nov 08 10:46:46 MST 2016 patrick.corless PDF-1019 fix clipping issue with gradient paints which was causing some issue with apply smasks.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/ImageUtility.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/util/content/AbstractContentParser.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/graphics/commands/FormDrawCmd.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #49499 Tue Nov 08 11:06:40 MST 2016 patrick.corless PDF-1019 rolled back some of the transparency changes, still need to crack this nut.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/util/content/AbstractContentParser.java
              Patrick Corless made changes -
              Status Resolved [ 5 ] Closed [ 6 ]

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Arran Mccullough
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                  Watchers:
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                  Dates

                  • Created:
                    Updated:
                    Resolved: