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https://issues.apache.org/jira/browse/PDFBOX-3251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15168753#comment-15168753
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Petras commented on PDFBOX-3251:
--------------------------------
With suggested patch, Preflight validation of the sample file
[PDFA-RGB.pdf|https://issues.apache.org/jira/secure/attachment/12788518/PDFA-RGB.pdf]
from PDFBOX-3235 fails with the expected error:
{code}
2.4.4 : Invalid Color space, Error: Unknown colorspace 'RGB'
{code}
> Improve parsing and validation of ColorSpace for inline image
> -------------------------------------------------------------
>
> Key: PDFBOX-3251
> URL: https://issues.apache.org/jira/browse/PDFBOX-3251
> Project: PDFBox
> Issue Type: Improvement
> Components: PDModel, Preflight
> Affects Versions: 1.8.11
> Reporter: Petras
> Attachments: PDFBOX_3251_ColorSpace_validation.patch
>
>
> This ticket is a follow-up of PDFBOX-3235.
> Currently neither Preflight, nor PDModel checks the following restrictions of
> ColorSpace for inline image (as defined in PDF Reference 1.4 and ISO 32000):
> * if *Indexed* color space specified, its color table must be specified by a
> byte string;
> * abbreviations used for the names of color spaces are valid only in inline
> images.
> PDModel and Preflight should check and validate that color table of *Indexed*
> table is string and support the abbreviated names of color space only within
> the content stream of inline image.
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