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README.md: remove ambiguous section about lossless compression
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@ -88,14 +88,6 @@ Bugs
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If you find a JPEG or JPEG2000 file that, when embedded cannot be read
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by the Adobe Acrobat Reader, please contact me.
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For lossless conversion of formats other than JPEG or JPEG2000, zip/flate
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encoding is used. This choice is based on tests I did with a number of images.
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I converted them into PDF using the lossless variants of the compression
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formats offered by imagemagick. In all my tests, zip/flate encoding performed
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best. You can verify my findings using the test_comp.sh script with any input
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image given as a commandline argument. If you find an input file that is
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outperformed by another lossless compression method, contact me.
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I have not yet figured out how to determine the colorspace of JPEG2000 files.
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Therefore JPEG2000 files use DeviceRGB by default. For JPEG2000 files with
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other colorspaces, you must explicitly specify it using the `--colorspace`
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