Sumatra PDF is a slim, free, open-source PDF viewer for Windows. Portable out of the box. The Sumatra PDF Viewer is a tiny, open-source, portable, and, most of all, lightning-quick replacement for the bloated Adobe Reader we've all learned to replace.
Sumatra has a minimalistic design. Simplicity has a higher priority than a lot of features. It's small and starts up very fast. It's designed for portable use: only one file so you can run it from external USB drive. Doesn't write to registry.
Sumatra opened every PDF we threw at it without any issues, along with a table of contents in the left pane if available. You can head into the Options to choose the default layout and zoom, or choose whether to have the sidebar display automatically. Want to copy text to the clipboard? Just hold down the Ctrl key and select the text with your mouse, then use Ctrl+C to copy it. There's even a full set of hotkeys, including Gmail-style navigation. It's not as full featured as Reader or Foxit, but if all you are doing is reading PDFs, it's definitely worth a look.

Sumatra PDF Keyboard shortcuts:
* Ctrl+Left Mouse - select a text on a page and copy to clipboard. Use Ctrl-V to paste it in other programs
* space - scroll by screen
* backspace - scroll back by screen
* j - scroll by one line
* k - scroll back by one line
* Down - scroll by one line
* Up - scroll back by one line
* n - goto next page
* p - goto previous page
* Page Down - go to next page
* Page Up - go to previous page
* Ctrl-F - find text
* F3 - find next
* Shift-F3 - find previous
* Ctrl-L - fullscreen
* F11 - fullscreen
* g - goto page
* q - quit
* + - zoom in
* - - zoom out
* r - reload PDF document
* <Shift> <Ctrl> + - rotate clockwise
* <Shift> <Ctrl> - - rotate counter-clockwise
* Home - go to first page
* End - go to last page

Command-line arguments:
-esc-to-exit - if given, ESC key will exit the program. It's persistent in settings file, so it only needs to be provided once.
-bgcolor $color - change the yellow background color to a provided color in hex format (e.g. 0xffff00)
-print-to-default FILE_NAME.PDF - prints a given PDF to a default printer
-print-to PRINTER_NAME FILE_NAME.PDF - prints a given PDF to a printer named PRINTER_NAME
-exit-on-print - when -print-to-default or -print-to is used, will exit after printing

Disable viewing PDF files directly in web browser:
Adobe Acrobat also comes with Internet Explorer and FireFox plugin which makes it take over PDF files downloaded via browser and display them directly in the browser. This is not always a desired behaviour and you can use Sumatra as the default PDF viewer in both IE and Firefox, without totally uninstalling Adobe Acrobat.

Here are the steps:
1. Launch Adobe Acrobat
2. Select Edit/Preferences
3. Select Internet
4. Uncheck Display PDF in browser
5. Click OK
6. Launch Sumatra PDF viewer
7. Select menu Setting/Options... and click "Make SumatraPDF my main PDF reader" button
8. Clicking on links to PDF documents should no longer open the embedded viewer but pop up a dialog box. Select "Always perform this action..." checkbox if you want Sumatra to automatically open those PDF files.

SoftSea.com had fully tested and uploaded the install files, Sumatra PDF does not contain any adware or spyware, the latest version is 2.0.5056 Pre-Release, you can download this software (4.5 MB) from special server of SoftSea.com.

The license of this software is Freeware, you can free download and free use this pdf software.