I just bought an HP Officejet Pro 8600 Plus (Model N911g) Printer/Scanner/Fax. The old Canon MP470 finally bit the dust. With Canon's MP Navigator I was able to add pages to a pre-existing pdf file--great for (among other things) adding new pages to a document where I kept all of my vehicle's service information. The HP doesn't seem to have that capability, which I find hard to believe. I suspect that I just don't know how to do it. I can't find anything on the WEB, so I thought I'd turn to the folks who know what they're doing--you guys. I'd surely appreciate it, if anyone can point me down a proper path. Thanks.