Need to compress a massive PDF file on Linux?
Using CLI tools, you can get an awesome ~90% compression rate! You need to leverage #Djvu format (require `pdf2djvu` and `ddjvu`)
```
compress-pdf input-big.pdf [compressed.pdf]
```
Full snippet
https://gist.github.com/edouard-lopez/e2d53cee78d0bfa75b6a5bacac363030

