[jira] Updated: (PDFBOX-475) Support ConflictsList for XRef Streams in pdf 1.5 or greater

["Justin LeFebvre (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin LeFebvre updated PDFBOX-475:
-----------------------------------

    Attachment: PDFXrefStreamParser.java
                xrefConflicts1.5.diff

Adding a patch which includes a new file to be located in src\main\java\org\apache\pdfbox\pdfparser as well as the .diff file for the other changed files. Adds code to properly parse through the xref stream as well as provided a fix for flatefilter which fixed the algorithm for decompression with predictors. 

> Support ConflictsList for XRef Streams in pdf 1.5 or greater
> ------------------------------------------------------------
>
>                 Key: PDFBOX-475
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-475
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: Parsing
>            Reporter: Justin LeFebvre
>         Attachments: PDFXrefStreamParser.java, xrefConflicts1.5.diff
>
>
> The fix for PDFBOX-183 which added a conflictList which keeps track of duplicate objects in a pdf file is insufficient for pdf files that do not include an xref table, but rather have xref streams. 

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