Jochen Schulz wrote:
Florian Kulzer:Unfortunately I do not know if a "naked" CUPS has the same handy pdfwriter with the option to downsample images, and I could not find any command line tool to do this.apt-cache show cups-pdf I didn't try it, but it should downsample to printing quality and then make a new PDF out of it. pdf2ps and ps2pdf might also work. J.
I have now figured out how to do it with ghostscript from the command line (after first failing with the "-r" option). The command is: gs -q -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -dDownsampleColorImages=true -dColorImageResolution=300 -sOutputFile=small.pdf big.pdf The resolution is specified in DPI. For grayscale and monochrome images you have to add "-dDownsampleGrayImages=true -dGrayImageResolution=..." and "-dDownsampleMonoImages=true -dMonoImageResolution=...", respectively. Regards, Florian