Shrinks the PDF passsed to it

shrink-pdf.sh

#!/usr/bin/env bash
# Heavily based on: https://softwarerecs.stackexchange.com/questions/18442/command-line-pdf-image-compression-optimizer, but less aggressive.

gs                                         \
  -o smaller-downsampled.pdf               \
  -sDEVICE=pdfwrite                        \
  -dCompressPages=true                     \
  -dCompressFonts=true                     \
  -dDownsampleColorImages=true             \
  -dDownsampleGrayImages=true              \
  -dDownsampleMonoImages=true              \
  -dColorImageResolution=300                \
  -dGrayImageResolution=300                 \
  -dMonoImageResolution=300                 \
  -dColorImageDownsampleThreshold=1.0      \
  -dGrayImageDownsampleThreshold=1.0       \
  -dMonoImageDownsampleThreshold=1.0       \
  -dCompatibilityLevel=1.4                 \
  -c ".setpdfwrite <</AlwaysEmbed [ ] /NeverEmbed [/Courier /Courier-Bold /Courier-Oblique /Courier-BoldOblique /Helvetica /Helvetica-Bold /Helvetica-Oblique /Helvetica-BoldOblique /Times-Roman /Times-Bold /Times-Italic /Times-BoldItalic /Symbol /ZapfDingbats] /ColorImageFilter /DCTEncode /GrayImageFilter /DCTEncode /MonoImageFilter /CCITTFaxEncode /OutputICCProfile (None)>> setdistillerparams" \
  -f "$@"