ICEpdf
  1. ICEpdf
  2. PDF-883

IllegalArgumentException: alpha value out of range

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 5.1.2
          • Fix Version/s: 6.0
          • Component/s: Core/Rendering
          • Labels:
            None
          • Environment:
            ICEpdf 5.1.2 P03

            Description

            With the provided PDF file, some pages are rendered white/blank. The following errors are reported in the logs:

            FINEST: Error parsing text block
            java.lang.IllegalArgumentException: alpha value out of range
            at java.awt.AlphaComposite.<init>(AlphaComposite.java:624)
            at java.awt.AlphaComposite.getInstance(AlphaComposite.java:689)
            at org.icepdf.core.util.content.AbstractContentParser.setAlpha(AbstractContentParser.java:1915)
            at org.icepdf.core.util.content.AbstractContentParser.consume_Tj(AbstractContentParser.java:1405)
            at org.icepdf.core.util.content.NContentParser.parseText(Unknown Source)
            at org.icepdf.core.util.content.NContentParser.parse(Unknown Source)
            at org.icepdf.core.pobjects.Page.init(Page.java:392)
            at org.icepdf.ri.common.views.PageViewComponentImpl$PageInitializer.run(PageViewComponentImpl.java:1152)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
            at java.lang.Thread.run(Thread.java:745)

            May 11, 2015 9:33:11 AM org.icepdf.core.util.content.NContentParser parse
            WARNING: Error parsing content stream.
            java.lang.IllegalArgumentException: alpha value out of range
            at java.awt.AlphaComposite.<init>(AlphaComposite.java:624)
            at java.awt.AlphaComposite.getInstance(AlphaComposite.java:689)
            at org.icepdf.core.util.content.AbstractContentParser.setAlpha(AbstractContentParser.java:1915)
            at org.icepdf.core.util.content.AbstractContentParser.commonFill(AbstractContentParser.java:1793)
            at org.icepdf.core.util.content.AbstractContentParser.consume_f(AbstractContentParser.java:1050)
            at org.icepdf.core.util.content.NContentParser.parse(Unknown Source)
            at org.icepdf.core.pobjects.Page.init(Page.java:392)
            at org.icepdf.ri.common.views.PageViewComponentImpl$PageInitializer.run(PageViewComponentImpl.java:1152)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
            at java.lang.Thread.run(Thread.java:745)

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              Patrick Corless added a comment -

              The postscript in question is part of an external graphics state definition, /ca 255. Normally the range of values is 0-1.0 but for some reason this PDF does 255 which seems to be an error in the encoder. 255 is commonly used for in exchange for 1.0 in many different colour models.

              I've added some code protection around alpha fill and stroke and will convert to 0-255 to 0-1.0. PDF renders correctly no.

              Show
              Patrick Corless added a comment - The postscript in question is part of an external graphics state definition, /ca 255. Normally the range of values is 0-1.0 but for some reason this PDF does 255 which seems to be an error in the encoder. 255 is commonly used for in exchange for 1.0 in many different colour models. I've added some code protection around alpha fill and stroke and will convert to 0-255 to 0-1.0. PDF renders correctly no.
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              Patrick Corless added a comment -

              Marking as fixed.

              Show
              Patrick Corless added a comment - Marking as fixed.
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              Patrick Corless added a comment -

              Marking as closed

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              Patrick Corless added a comment - Marking as closed

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Arran Mccullough
                • Votes:
                  0 Vote for this issue
                  Watchers:
                  2 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved: