View 2 documents at a time

I need to know if SUMATRA allows me to view 2 documents at a time to compare them.
That is two parallel windows at the same time.
Thank you so much.

PS: Sorry if you don’t understand well. I do not speak English and I am translating with “Google Translator”.

It’s somewhat complicated.

If you uncheck “Use Tabs” option via menu “Settings / Options” and restart sumatra, you’ll be able to open multiple instances of sumatra with the same file and then you can place them side-by-side and compare.

Thank you very much kjk.
A hug from Argentina.

I suggest you to use Diffpdf or Diffpdf Portable. It requires Windows.

If you’re not using Windows, you can try KIWI PDF Comparer (Windows, Mac OSx, Linux).