ImageMagick reminder

Smooth scan of copied document (where grey is actually represented by black dots):

mogrify -selective-blur 9x3+45% *

Nextcommands are trying to reduce file size for bw text documents

mogrify -level 0%,95% *
mogrify -fuzz 45% -trim +repage *
mogrify -bordercolor white -border 20x20 *
mogrify -dither FloydSteinberg -colors 16 *