Ok, so I don’t know why this works, but it does and I haven’t seen any decrease in quality. I suspect converting from PDF to PS and back just optimizes the PDF.
- pdftk for linux
- Convert your PDF to PS (this creates a large file
- Convert the new PS back to a PDF
pdf2ps large.pdf very_large.ps
ps2pdf very_large.ps small.pdf
large.pdf : 6.3MB
very_large.ps : 53.4MB
small.pdf : 2.4MB
Looks like pretty good compression to me.
If anyone knows why this works so well, please let me know.