Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cant read pdf well

Its very good to read ebooks, but just impossible read pdf format because text are very small and i cant make zoom or read any daily articles. Also it could have a pen to bookmark or touch screen. I think sold it and acquire one ebook reader were i could reaad my medical articles and reviews. Also pictures in newpapers are rare. When i purchase this kindle 6" the DX was not available to Europe. I think that in 2010 new ebook readers with more performances arrived. However i must say that screen, e ink and global wireless from amazon is very good and fast.