Replaces a color in a PDF document, useful for removing a dark background before printing.

convert -density 300 input.pdf -fill "rgb(255,255,255)" -opaque "rgb(0,0,0)" output.pdf
The pdf is first converted to a bitmap, so change "-density" to match your printer resolution. Also be careful about the RAM required. In this example rgb(0,0,0) is replaced by rgb(255,255,255), change to suit your needs.

2
By: akrog
2010-10-07 17:24:19

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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