Re: [Trisquel-users] Method for converting masses of photos?

[akirashinigami]

There's a suite of command-line image processing tools that does exactly what  
you're looking for.  It's called ImageMagick, and I'm pretty sure it's  
installed by default in Trisquel.

Open a terminal, go into the folder with the JPEGs, and run the command  
'mogrify -format png *.jpg' without the quotes.  Also, replace *.jpg with  
*.jpeg or *.JPG, or whatever the actual extension is.