[jira] [Updated] (PDFBOX-2070) Filter.decode() modifies PDF if there is a filter array

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-2070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr updated PDFBOX-2070:
------------------------------------

    Attachment: after.pdf
                before.pdf

> Filter.decode() modifies PDF if there is a filter array
> -------------------------------------------------------
>
>                 Key: PDFBOX-2070
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2070
>             Project: PDFBox
>          Issue Type: Bug
>    Affects Versions: 2.0.0
>            Reporter: Tilman Hausherr
>         Attachments: after.pdf, before.pdf
>
>
> If there are several filters (filter array) in an image, PDFBox is inserting an empty DecodeParms object, instead of either inserting an empty COSAarray, or (better) do nothing. Saving such a PDF results in it not being displayable in the Acrobat Reader.
> Test code:
> {code}
>         PDDocument d = PDDocument.load("before.pdf");
>         new PDFRenderer(d).renderImage(0);
>         d.save("after.pdf");
> {code}
> The rendering is important because without it, the filtered objects aren't decoded.



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