AdvanceCOMP: Please support optimizing grayscale files with advpng
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#261 AdvanceCOMP: Please support optimizing grayscale files with advpng
Hi.
The pdfsizeopt project (which is a lossless optimizer for PDF files in the fashion as advancecomp) is looking for a PDF optimizer and one of the things that I noticed while running advpng with -z3 or -z4 is that it skips optimization of grayscale files with a message like this:
$ advpng -z3 grayscale.png
1208 1208 100% grayscale.png (Unsupported bit depth/color type, 8/0)
1208 1208 100%
$
Would it be possible to support grayscale figures with optipng? That would be superb!
Thanks,
Rogério Brito.
