The problem:

I wanted to print the extremely-twisted and NSFW Cards Against Humanity deck (available as a free PDF). The last 5 pages have white text on a black background, which kills my toner and looks awful (e.g. uneven toner placement, smudging, etc). I wanted to print these as black-on-white instead, but couldn’t find a black-on-white version of the PDF. Furthermore, I couldn’t figure out how to do it at print time (my laser printer doesn’t seem to have an “invert” option).

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