You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pdfbox.apache.org by "Alexey Gavrilov (JIRA)" <ji...@apache.org> on 2013/01/25 08:27:13 UTC
[jira] [Updated] (PDFBOX-1475) Exception thrown during rendering
page if /DecodeParms specified indirectly (like [9 0 R]) in XObject/Image
[ https://issues.apache.org/jira/browse/PDFBOX-1475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Gavrilov updated PDFBOX-1475:
------------------------------------
Attachment: PDCcitt.java
CCITTFaxDecodeFilter.java
Dear Andreas,
Finally I received permission for open source contribution.
Let me attach to the message the corrections I made. They are little bit different from yours.
Thank you for your help.
Regards,
Alexey
> Exception thrown during rendering page if /DecodeParms specified indirectly (like [9 0 R]) in XObject/Image
> -----------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-1475
> URL: https://issues.apache.org/jira/browse/PDFBOX-1475
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 1.7.0, 1.7.1
> Environment: Not important
> Reporter: Alexey Gavrilov
> Assignee: Andreas Lehmkühler
> Labels: DecodeParms, Image, XObject
> Fix For: 1.8.0
>
> Attachments: CCITTFaxDecodeFilter.java, Exception info.jpg, PDCcitt.java, TC11.pdf
>
>
> PROBLEM:
> Exception is thrown during rendering TC11.pdf. Empty image is generated.
> TEST:
> java -jar pdfbox-app-1.7.1.jar PDFToImage -resolution 300 TC11.pdf
> DETAILS:
> There are 2 objects in TC11.pdf.
> . . .
> Object 7:
> <<
>
> /Type /XObject
> /Subtype /Image
> /Width 2496
> /Height 3504
> /BitsPerComponent 1
> /ColorSpace /DeviceGray
> /Filter [/CCITTFaxDecode]
> /DecodeParms [9 0 R]
> /Length 10 0 R
> >>
> . . .
> Object 9:
> <<
>
> /Columns 2496
> /Rows 3504
> /K -1
> /BlackIs1 false
> >>
> . . .
> when rendering the page exception is thrown as the library doesn't resolve indirect reference to object 9 for /DecodeParms.
> RESOLUTION:
> I can specify what is to be changed in CCITTFaxDecoderFilter.java and PDCcitt.java to resolve the issue.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira