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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2019/07/25 03:57:00 UTC
[jira] [Created] (PDFBOX-4607) Transparent 16 bit image doesn't
display in Adobe Reader
Tilman Hausherr created PDFBOX-4607:
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Summary: Transparent 16 bit image doesn't display in Adobe Reader
Key: PDFBOX-4607
URL: https://issues.apache.org/jira/browse/PDFBOX-4607
Project: PDFBox
Issue Type: Bug
Affects Versions: 2.0.16, 2.0.12
Reporter: Tilman Hausherr
Attachments: 16bit-transparent.pdf, 16bit-transparent.png
Thomas on stackoverflow has very simple 16 bit PNG image into PDF code that displays fine on Adobe Reader in 2.0.8 but no longer since 2.0.12. It displays on all other viewers I've tried: PDFBox, GS, PDF.js and Chrome. It works again when disabling the predictor logic in LosslessFactory.java. Thomas and I narrowed the problem last evening and now he has a non confidential file for us and also a workaround on his side.
cc [~rototor]
the "bad" file has imageType custom, colorspace with getNumComponents = 1, 8 bpc, data buffer TYPE_BYTE
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