How to remove watermark from a PDF document
I recently ordered a new cannon camera online. To familiarize myself with the camera in advance of delivery (next Tuesday), and knowing that the full user manual was only on the included CD (apparently nobody provides printed manuals anymore), I went to the manufacturer's (Canon) web site and down loaded a PDF version of the manual, which I then printed.
When I view the PDF file on my computer, everything looks perfect, but the printed version has the word "COPY" in light grey in the center of every page, "behind" the print. I assume that this is done as a "watermark", but I'm not sure, and I don't know how to remove it. And why wouldn't I be able to see this when viewing the document on my computer?
This is not a major issue (i.e., I'm not going to re-print the document because of it), but I would like to know how to remove it for future reference.
Thanks for any help you can provide.