Comment by mo_42

I use the following tiny script to make PDFs look like they have been scanned. There are still entities that require you to physically sign a document and scan it. So far, everyone accepted PDFs like these:

  #!/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