I would like to know whether Sony has done something about this annoying issue in more recent models.
Some pdfs require zooming instead of font size change, for some technical reasons. These cannot be annotated either; it seems like they are like a picture instead of typed characters. Some pdfs are also so complicated in their page formatting (columns, pictures, etc.) that they have to be zoomed too in order to be read properly.
Anyhow, I don't mind the zooming. I just think that in 2011, you would not need to redo the zooming at every page turn in a technological device that you paid a considerable price.
My PRS-700 was not any better in that regard...
Sony will lose me for eReaders if this issue does not get fixed...