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PDF 1.5 supports JPXDecode filter based on the JPEG 2000 standard.
by niutech 4y ago
PDF 1.5 supports JPXDecode filter based on the JPEG 2000 standard.
- DrNosferatu 4y agoBut no JPEG XL, AVIF or HEIF! I think AVIF would be optimally useful.
- aidenn0 4y agoI use jpeg-2k in a PDF for encoding comics; it's better than any pre-JXL compressor I tried for such images; HEIC and webp both blur out the stippling and hatching at much higher bitrates than j2k. JXL soundly defeats it though and is much easier to use (I have to use different quantization settings for greyscale and colour images with openJPEG, but the default "lossy" setting with libjxl never creates a larger file than j2k). So for me, at least, I'd like jxl to make it into PDF.