[michaelhoffman]

I love SumatraPDF. I use Acrobat Reader for most stuff, but while working on TeX documents SumatraPDF is invaluable because it:

- is fast AF

- supports SyncTeX

- doesn't unnecessarily lock the files it has open

[stjohnswarts]

Yeah it's pretty cool. I use it as a pdf/epub/etc reader in for calibre (which manages books/comics/etc)