ghostscript - pdf tool

Crop PDF

gs -o cropped_output.pdf -sDEVICE=pdfwrite -c "[/CropBox [36 36 559 806] /PAGES pdfmark" -f input.pdf

• [left bottom right top]
  • 1 inch = 36
  • A4 = 595 $\times$ 842

Compress PDF

• https://twitter.com/CSProfKGD/status/1773799266613440679
• https://tex.stackexchange.com/questions/14429/pdftex-reduce-pdf-size-reduce-image-quality

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=small.pdf big.pdf