shell-gs-compress-pdf

name	shell-gs-compress-pdf
description	Use Ghostscript to compress PDF files. TIL note about shell. Use when working with shell and the user mentions gs compress pdf or related topics.

Use Ghostscript to compress PDF files

On macOs

brew install ghostscript

dPDFSETTINGS option values:

• /prepress (default) Higher quality output (300 dpi) but bigger size
• /ebook Medium quality output (150 dpi) with moderate output file size
• /screen Lower quality output (72 dpi) but smallest possible output file size.

gs
 -q -dNOPAUSE -dBATCH -dSAFER \
 -sDEVICE=pdfwrite \
 -dCompatibilityLevel=1.4 \
 -dPDFSETTINGS=/screen \
 -dEmbedAllFonts=true -dSubsetFonts=true \
 -dColorImageDownsampleType=/Bicubic \
 -dColorImageResolution=144 \                `#PDF downsample color image resolution`
 -dGrayImageDownsampleType=/Bicubic \
 -dGrayImageResolution=144 \                 `#PDF downsample gray image resolution`
 -dMonoImageDownsampleType=/Bicubic \
 -dMonoImageResolution=144 \                 `#PDF downsample mono image resolution`
 -sOutputFile=out.pdf \                      `#Output file`
 file.pdf                                    `#Input file`