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by Uyenvu123
Forum: PerlMagick
Topic: zlib filtering PNGs
Replies: 1
Views: 2838

zlib filtering PNGs

Hi guys I am writing some code to improve the compression of PNGs and I am having some difficulties with PNGs that have been edited with the GIMP (as JPEGs) and then transformed into PNGs on the fly by Perl Magick. Essentially, if I turn on Z_FILTERED in the compression code the PNGs will not displa...