I'd like to scan all our shipping lists on the server (as PDF). On my iPad, I'd like to access them in the ware-house, make a tag/circle/cross on the screen for every row that are verified and save this document as a new "checked" document for further processing by the inivoicing people. Just as you would make a tick on the paper row when you have verified it.
Any solutions? A drawing software, that could read a scanned (PDF) document (to the background) and allow writing on it and able to save the background along with the signs/letters drawn on it?