[PDFBOX-5738] Wrong colors in PDF since PDFBOX-5488

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.30, 3.0.1 PDFBox
• Fix Version/s: 2.0.31, 3.0.2 PDFBox, 4.0.0
• Component/s: Rendering
• Labels: DCTFilter
• Assignee: Tilman Hausherr
• Reporter: Oliver Schmidtmer
• Created: 13/Dec/23 22:38
• Updated: 14/Mar/24 20:57
• Resolved: 19/Dec/23 10:02

Description

Since the workaround for PDFBOX-5488, the attached PDF has wrong colors.

The base issue from PDFBOX-5488 might be a difference between the reported color space from the metadata-tree for the user and the raw pixel data when readRaster is used, at least if I understand this correctly:

https://github.com/haraldk/TwelveMonkeys/issues/571

For the default JPEG Image Reader this is not a problem, as reader.getImageMetadata throws an Exception "javax.imageio.IIOException: JFIF APP0 must be first marker after SOI" and "getAdobeTransformByBruteForce" is used instead of "getAdobeTransform".