sam2p doesn’t like taking a lot of PNGs exported from Inkscape as straight input. This works around that issue by using ImageMagick convert it to an RGB (not RGBA) PNM before piping it into sam2p:

convert ${input_file} -colorspace RGB pnm:- | sam2p -c:lzw -m:dpi:$(echo "scale=5;72*(72/${dpi})" | bc) - PDF:${output_file}


Yes, the strange DPI syntax is needed. Yes, it’s totally counter-intuitive and I’d love to know why it works that way.

This entry was posted on Thursday, September 3rd, 2009 at 4:01 pm and is filed under Blog, Computers. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.