Sumatra PDF Reviews

about Sumatra PDF · ·

A 3MB portable PDF viewer. Need I say more?

At less than 1/100th the size of Adobe's Acrobat and 1/10th the size of Foxit, Sumatra proves that PDF readers don't need to be bloated space hogs.

If all you need is something to quickly open and read PDFs without any hassle or strings attached, look no further!

Comment by Shara
about Sumatra PDF · Jul 2017 ·

it is lightweight and display everything: fb2, pdf, djvu.

Comment by johndoe12
about Sumatra PDF · May 2017 ·

It's lighter and faster than Foxit Reader or Adobe Reader. It's simple, and open source as well. Essentially everything most people would ever need in a PDF reader while remaining light, and simple to use.

Comment by Mined
about Sumatra PDF · Apr 2017 ·

Much better and lighter on the computer than the Adobe Reader one.


Great free and quick PDF reader

about Sumatra PDF · · 1 Helpful

This is a great PDF reader because:
1. Quick to install.
2. Quick to remove.
3. Doesn't leave data behind once deleted.
4. Quick to load up PDFs.
5. Not big to download.


Fast and clean

about Sumatra PDF · ·

If you only need to read a pdf and are not thinking about doing editing of any sort, this pdf reader is the best out there.

It opens really fast, but what I like the most is that I can open the same document in two different windows. This is useful when you want to read some text about an image that's in another page. By opening the file in two different windows you can read the text while looking at the image.

Deleting the history in SumatraPDF may not appear user-friendly, because you have to go to Advanced Settings and then delete the lines about the FileStates, but once you learn how to do it it is very simple as well.

I strongly recommend.


Some good and some bad

about Sumatra PDF and Evince, Okular · ·


  • Open source
  • Starts quickly
  • Remembers your place in the document so you can read long documents without having to find your place each time
  • Opens both DjVu and PDF


  • Contains DRM: Restricts fair uses of "protected" PDFs like copying or printing. So you can't copy text to the clipboard for pasting into Google translate, saving to your notes, quoting in a paper, etc. It's really hypocritical for open-source software to have DRM. Standards should only be followed when they make sense. Restricting users' freedom does not make sense and is contrary to the purpose of the GPL.

    • This antifeature is optional in Okular and Evince, with Debian turning it off in their distros, but the SumatraPDF author refuses to even make it optional.

    • I figured out how to disable the DRM in the source code, but I don't want to maintain a fork. It should have never been included in the first place.

  • Opens multiple copies of the same file instead of bringing into focus the copy you already have open. (Can be good for comparing different parts of the document, but an explicit "split this off into another window" or split-screen view would be better for that)

Good viewer

about Sumatra PDF · ·

This is excellent PDF viewer, but we should not forget that it's excellence is due to creators of MuPDF renderer, around which this lightweight GUI is build.

For other supported formats, I'd recommend dedicated viewers instead SumatraPDF


Best of three options tries

I tried Adobe's reader, Foxit, and Sumatra. Sumatra is the best.

Sumatra does everything that a sane person would expect from a pdf viewer, and nothing more. It is very lightweight and fast. It will get the job done just about every time.

A caveat is that I have encountered some pdfs with funny encoding, and they wouldn't display or print correctly (text showed up as boxes) in Sumatra. For those files, foxit never worked either, but Adobe Reader did, so keep it around (or keep it mind) for those occasions. Sumatra PDF is still the best default pdf viewer.