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premek/scan_pdf.sh

Last active June 21, 2023 21:36
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make an image look like it was scanned
Raw
scan_pdf.sh
# separate pdf pages
convert -density 400 doc.pdf page-%0d.jpg
# use gimp to insert the signature at the right place at the right page, remove unnecessary pages etc
# scan
for F in page*jpg; do
convert -resize 1800x1800 -density 95 -flatten "$F" -rotate "0.$(( ( RANDOM % 2 ) + 3 ))" +repage -attenuate "0.$(( ( RANDOM % 8 ) + 20 ))" +noise Gaussian -quality 85 -compress JPEG -colorspace gray "$F-scanned.jpg"
done
# combine the pages into a pdf
convert *scanned.jpg scan.pdf
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