I created a PDF of some gift tags for a client. They were arranged in portrait orientation so they would print on an 8.5” x 11” page like a regular document. I sent them to her, she said they were perfect, and I forgot about the transaction.
A few weeks later, she writes to me in a panic.
CLIENT: Your file is corrupt. When I print it, the bottom and top are cut off and it’s centered on the page with a bunch of white space on the side.
ME: Did you make sure to change your printer settings to print in portrait? You probably have it set to landscape.
To further prove my point, I printed out the exact file I sent her, took a picture of it, and sent the picture showing it printed correctly. I also attached the same file I originally sent her and replied again.
ME: I just printed it and it worked perfectly (as you can see by the photo I sent you). I also reattached the file. You’ll just need to change your printer settings to portrait.
CLIENT: No, it’s not that. This file is corrupt. I’ll just have to have someone else fix it since you won’t.
I let it go. The next day:
CLIENT: So, I figured out what the problem was. I was printing in landscape.
Taken from http://clientsfromhell.net/page/3