Fortrikka Left/Right arrow should go to the next page or previous page. Page up/down should go down one page of the PDF, not one page of the scroll area. Currently other PDF readers such as preview have the option to do this.
eirk The pdf viewer is a webkit feature, so I don't think that it can be added. Safari doesn't support this either. Do the page up/down keys not work?
Fortrikka Could the scroll position be saved then for pdf files? I am sure there is some area somewhere that can read the scroll position of webkit PDF.