If you've ever made copies of multiple files, if you're like me, you dislike the dreaded "Copy of" in front of the filename. Here's how I quickly "fix" that:
If you have a pdf that you'd like to enlarge, you can do so right from within Adobe Reader. Here's how: Go to "Print", then choose "Poster": Next, set the scale to "200%" for 4 pages (experiment for larger) and I prefer no overlap, so set it to 0: PRINT!!