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nilsandrey/applyScannedEffectToPdf.sh

Created March 17, 2023 17:05
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Apply an "scanned" effect to a PDF. From https://news.ycombinator.com/item?id=35132018
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applyScannedEffectToPdf.sh
#!/bin/sh
ROTATION=$(shuf -n 1 -e '-' '')$(shuf -n 1 -e $(seq 0.05 .5))
convert -density 150 $1 \
-linear-stretch '1.5%x2%' \
-rotate ${ROTATION} \
-attenuate '0.01' \
+noise Multiplicative \
-colorspace 'gray' $2
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