It's a pity that a PDF reader isn't included when Windows 7 is released. However, you can download and install a light-weight yet powerful PDF Viewer to serve as part of the operating system to view, print, and convert PDF.
Features:
View and Print PDF
Open, view, read, and print Adobe PDF files of all versions.
Zoom in and Zoom out to any size
Support zoom-in and zoom-out PDF pages to any PDF page to any size of your choice
Rotate PDF page clockwise and anticlockwise
PDF page can be viewed in different angles thanks to the fast rotation algorithm.
Free Panning
Drag your mouse up and down, or press your up arrow key and down arrow key to pan view a PDF file.
Work with 86 different languages
PDF files with Asian, Hebrew, Arabic et al fonts can be opened and viewed without difficulty.
Slide show PDF document in full screen mode
PDF document can be viewed in slide show and/or in full screen mode.
Extract text and images from PDF files
Text and images in PDF document can be extracted and saved to the location of your preferences. Unlike some other free PDF reader, this feature available in our PDF Viewer is totally free!
Light-Weight PDF Reader
PDF Viewer is a light-weight PDF reader, only 927KB in size. Small, speedy, and powerful!
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It's a pity that a PDF reader isn't included when Windows 7 is released. However, you can download and install a light-weight yet powerful PDF Viewer to serve as part of the operating system to view, print, and convert PDF. 
