BUG: Fix wrong LUT size error#3651
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stefan6419846 merged 2 commits intopy-pdf:mainfrom Feb 19, 2026
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Running the image extraction on an image with DeviceCMYK and JPXDecode using a custom /Decode entry would previously fail when applying the LUT to the image in `_apply_decode`. This was due to converting the image to RGB, but the custom LUT having a size of 8 entries. For my specific (non-disclosable) example everything works correctly now, while all existing tests still pass. Honestly, I am not sure whether all cases are handled correctly now, but at least the error is gone ...
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## main #3651 +/- ##
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- Coverage 97.37% 97.35% -0.02%
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Files 55 55
Lines 9909 9916 +7
Branches 1811 1814 +3
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+ Hits 9649 9654 +5
- Misses 151 152 +1
- Partials 109 110 +1 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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## What's new ### Security (SEC) - Prevent infinite loop from circular xref /Prev references (#3655) by @rampageservices ### Bug Fixes (BUG) - Fix wrong LUT size error (#3651) by @stefan6419846 - Fix handling of page boxes defined on `/Pages` (#3650) by @stefan6419846 [Full Changelog](6.7.1...6.7.2)
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Running the image extraction on an image with DeviceCMYK and JPXDecode using a custom /Decode entry would previously fail when applying the LUT to the image in
_apply_decode. This was due to converting the image to RGB, but the custom LUT having a size of 8 entries.For my specific (non-disclosable) example everything works correctly now, while all existing tests still pass. Honestly, I am not sure whether all cases are handled correctly now, but at least the error is gone ...