Sony ebook Reader now uses Adobe Digital Editions (sort of Adobe Acrobat Reader) to help you read PDF files. The only issue is that colored illustrations in your PDF ebooks, magazines and technical manuals will appear in black and white.
The Sony Reader can read Microsoft Office Word .doc files, Adobe PDF documents and plain text files. For HTML web pages, you need to save them as text or PDF.
Sony Book Reader can also be used as an MP3 player and an Image viewer for viewing photos / presentations in .jpg, .gif, .png, .pdf formats. It supports MP3 / AAC songs and the music can play as you are reading an ebook or a magazine on Sony Reader.