That`s my final conclusion: free, clean, easy and the fastest PDF reader for Windows users - I will jump in front of a train if you can find a better alternative. You might not notice the difference on powerful computers but try this on a netbook - I can assure you that you won`t find a better alternative ( I`ve just made a test on a Netbook ). The setup file has 4 MB, you can install the program in 2 seconds and it will open files in nanoseconds. Short Sumatra PDF Review: The fastest PDF reader for Windows? Yes, finally! It is not just ``another`` PDF viewer, once installed, it is capable to read other formats as well: eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR). It is about a true, free application made by a genius named Krzysztof Kowalczyk for other people like me. Most of them are bloated, but this article is not about them. Even now, the Internet is full of ``free PDF readers``.

However, most of them were crappy software. Later, the popularity increased to such an extent that other PDF readers appeared - like mushrooms after the rain.

I remember that Acrobat Reader was the ``de facto`` program used for PDF files.

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