PDF notes
info
pdfimages -l input.pdf
flatten
pdf2ps orig.pdf - | ps2pdf - flattened.pdf
compress & convert
gs -sDEVICE=pdfwrite -dColorConversionStrategy=/sRGB -dColorImageResolution=150 -q -o output.rgb.150dpi.pdf input.cmyk.pdf
info
pdfimages -l input.pdf
flatten
pdf2ps orig.pdf - | ps2pdf - flattened.pdf
compress & convert
gs -sDEVICE=pdfwrite -dColorConversionStrategy=/sRGB -dColorImageResolution=150 -q -o output.rgb.150dpi.pdf input.cmyk.pdf