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@andyrbell

andyrbell/scanner.sh

Last active September 8, 2025 18:04
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Make a pdf look scanned using ImageMagick
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scanner.sh
# use ImageMagick convert
# the order is important. the density argument applies to input.pdf and resize and rotate to output.pdf
convert -density 90 input.pdf -rotate 0.5 -attenuate 0.2 +noise Multiplicative -colorspace Gray output.pdf
@sophiebits
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If you want each page to be rotated by a different random amount, this worked for me:

magick -density 90 input.pdf -background white -seed 42 -rotate "%[fx:(u*2-1)*0.5]" -attenuate 0.2 +noise Multiplicative -colorspace Gray output.pdf

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