Please do not post solutions to puzzles, but rather post hints as appropriate in response to queries
Type [spoiler] ... [/spoiler] around the outside of any hints so they can't be read by accident - e.g. [spoiler]have you tried looking at the corner of the page?[/spoiler]
Thanks for your help. Finally got there by reading other posts. Even knowing what that barcode is supposed to say, I don't think it looks anything like it.