[Hicham]

Originally Posted by sonyreaderfan

I bought the Sony Daily Edition (PRS 950) precisely because I needed to read PDF. I also returned a K3 because of its limited PDF feature.

Some features of the Sony Readers for reading PDF:
- You can select margin cut page view to have document have bigger fill of the screen.
- There's scaled zooming and locking which approximates the behavior of pinch-zooming of documents.
- Pdf documents can reflow, so you can change the font sizes. However this messes up diagrams and charts.
- You can read documents in the original form in landscape mode, although the document is split into 2 or 3 screens.

This link gives a pretty good overview of the PDF feature.
http://www.the-ebook-reader.com/prs-950-pdf-review.html

I bought the PRS 950 because the 7 inches screen allows for adequate view of pdfs in landscape mode. The text size is bigger than on a 6-in screen. I mostly view the pdfs in portrait mode using reflow or locked zoom. For viewing documents with math symbols or technical drawings (or any document that needs its format intact to be read, such as scanned PDF that can't be reflowed), I use the reader in locked zoom or more often, in the landscape mode (because the reflow messes up the document and I want bigger text size).

The pdfs I have are mostly text with a few charts and the Sony reader has met my needs.
If you're a liberal arts major and the pdfs you're reading are mostly text (and it can be reflowed and read in portrait mode), the PRS-650 is good enough. I wanted the 7-in screen for reading in landscape mode because of the documents with math symbols.

For pdfs in which formatting is important, like multiple columns pdfs or textbooks (such programming books from Orielly.com), I wouldn't recommend a Sony reader. The formatting is too cumbersome for it to handle. (Nor would I recommend a Kindle DX because it doesn't let you jump on links -- so Table of content is useless. The pdf is rendered static.) I use an iPad with Goodreader to read those pdfs.

Hope this helps.

thanks for the great answer, but what about the battery life? should i worry or not? i am thinking to get prs 650, is that enough for a student who is taking linguistics as a major? i need to take lots of note and make lots of highlights.