I use Imagemagick for some things, but this is to recommend to other non technical users
A lot of people upload their sensitive files to online converters/compressors, and I’d like to recommend something easier
Say
- webp to PNG to jpeg
- compressing PDF, converting to and from other formats, extracting pages, unlocking, etc
Pandoc wad gonna be my recommendation for anything document based, but like ImageMagick, it’s command line, that sent me looking. Looks like https://panwriter.com/ is a good front end for it, probably gonna give it a try myself.
For documents, nothing quite like pandoc, I would be surprised if it’s not what most of those sketchy websites use on the backend anyway.