ICEpdf
  1. ICEpdf
  2. PDF-350

Enhance transparency groups implementation to avoid loss of render quality.

          Details

          • Type: Improvement Improvement
          • Status: Reopened
          • Priority: Major Major
          • Resolution: Unresolved
          • Affects Version/s: 4.2.2
          • Fix Version/s: None
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            any

            Description

            A few releases ago basic support for transparency group support was added. Mainly transparency support for a group of shapes and knockouts.

            The current implementation will detect a transparency group flag on the form object. If detected painting is deferred and the shapes painted to image so that a transparency group can be applied. The problem with this approach is that image will look blurred as document zoom is applied.

            It may be possible to spawn a new graphics context with g2d.createGraphics() in a similar but alternative means to creating the image. A little bit of research needs to be done here.

              Issue Links

              blocks

              Bug - A problem which impairs or prevents the functions of the product. PDF-289 Transparency grouping on colour space support

              • Major - Major loss of function.
              • Closed

              Bug - A problem which impairs or prevents the functions of the product. PDF-373 Error clipping or specifying alpha in jpeg encoded images.

              • Major - Major loss of function.
              • Closed

              Bug - A problem which impairs or prevents the functions of the product. PDF-417 Loss of color on generated images

              • Major - Major loss of function.
              • Closed

                Activity

                Ascending order - Click to sort in descending order
                Patrick Corless created issue -
                Patrick Corless made changes -
                Field Original Value New Value
                Salesforce Case []
                Fix Version/s 4.3 [ 10266 ]
                Patrick Corless made changes -
                Salesforce Case []
                Fix Version/s 5.0 [ 10314 ]
                Fix Version/s 4.3 [ 10266 ]
                Patrick Corless made changes -
                Link This issue blocks PDF-289 [ PDF-289 ]
                Patrick Corless made changes -
                Link This issue blocks PDF-373 [ PDF-373 ]
                Patrick Corless made changes -
                Salesforce Case []
                Component/s Core [ 10022 ]
                Fix Version/s 4.3.3 [ 10333 ]
                Fix Version/s 5.0 [ 10314 ]
                Patrick Corless made changes -
                Status Open [ 1 ] Resolved [ 5 ]
                Resolution Fixed [ 1 ]
                Patrick Corless made changes -
                Resolution Fixed [ 1 ]
                Status Resolved [ 5 ] Reopened [ 4 ]
                Patrick Corless made changes -
                Salesforce Case []
                Fix Version/s 4.5 [ 10342 ]
                Fix Version/s 4.3.3 [ 10333 ]
                Patrick Corless made changes -
                Link This issue blocks PDF-417 [ PDF-417 ]
                Patrick Corless made changes -
                Fix Version/s 5.0 [ 10314 ]
                Fix Version/s 4.5 [ 10342 ]
                Patrick Corless made changes -
                Fix Version/s 5.1 [ 10675 ]
                Fix Version/s 5.0 [ 10314 ]
                Patrick Corless made changes -
                Fix Version/s 5.2 [ 10970 ]
                Fix Version/s 5.1 [ 10675 ]
                Patrick Corless made changes -
                Fix Version/s 5.3 [ 12070 ]
                Fix Version/s 5.2 [ 10970 ]
                Patrick Corless made changes -
                Fix Version/s 6.0.2 [ 12971 ]
                Fix Version/s 6.1 [ 12070 ]
                Patrick Corless made changes -
                Fix Version/s 6.1 [ 12070 ]
                Fix Version/s 6.0.2 [ 12971 ]
                Patrick Corless made changes -
                Fix Version/s 6.1 [ 12070 ]

                  People

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

                    Dates

                    • Created:
                      Updated: