josch/img2pdf
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Convert 8-bit PNG & GIF alpha channels to /SMasks in PDF #106

Merged
josch merged 7 commits from tzahola/img2pdf:png-alpha-to-smask into main 2021-08-22 08:08:26 +00:00
Conversation 21 Commits 7 Files changed 2 +517 -165

7 commits

Author SHA1 Message Date
Tamás Zahola
8cbe03d486 Test cases for transparency 2021-08-19 17:42:46 +02:00
Tamás Zahola
968fc0c27a Test support on macOS 2021-08-19 17:42:43 +02:00
Tamás Zahola
cfbb40b0f6 Always initialize smask 2021-08-19 17:39:10 +02:00
Tamás Zahola
ff03d9c1cd Formatting 2021-08-19 17:39:10 +02:00
Tamás Zahola
e6613d3244 Use PNG predictor for /SMask too 2021-08-19 17:39:10 +02:00
Tamás Zahola
219dbd2856 Added transparency support for GIFs, palette-based PNGs and grayscale PNGs 2021-08-19 17:39:10 +02:00
Tamás Zahola
bf51768fb4 Convert 8-bit PNG alpha channels to /SMasks in PDF 2021-08-19 17:39:09 +02:00