It sounds like bleed was included during the export. Check your settings under marks and bleeds in the export dialog.
If it was set to .125 all around you'd have 8.25 x10.25 and if that's the
case the printer should be able to see that. Open the pdf in Acrobat and
under your view preferences enable viewing trim and bleed to check.
The thing that concerns me is that if it was some bleed then the printer
should have seen it in two seconds.
Bob, you know that printers are not all created equal....
And while I concur with your math on the bleed and resulting page size, I'm not convinced the 8.125 and 10.125 are not simply transcription errors in the first post.
I do know, but unfortunately, not everyone does.
And yes, that's why added the information on how to check and what it should
You battening down the hatches out there?
I'm in NC, so I have no real idea what's going on up north.
Thank you both Peter and Bob, turns out it was the bleed and slug that was set to .125, and I agree, working with this print house in particular has been a bit of a headache. But I'm stuck as this is who my company chooses to use. I've never worked with a print house that is so high maintenance. Usually I can just send my file with a description of what I want, and the job is taken care of.
Thanks again for your responses, helped me a ton!