Is there any way to "unstack" a PDF? In other words, can u take a multi-page PDF and separate the file into all single page PDFs?

You can use OS X preview to open the PDF and then print each page back into a PDF one at a time. Not very fast or elegant, though.

I’ve used this tool before, also for OS X: http://www.iis.ee.ic.ac.uk/~g.briscoe/joinPDF/

Here’s a free one from Sourceforge that’s apparently cross-platform; I can’t speak to its quality, though: http://sourceforge.net/projects/pdfsam

If you own Adobe Acrobat (the full version) you can do this. It’s not cheap though. Maybe you can get a limited or educational license for the program. Almost everyone knows someone who uses the full version to make PDFs.

Ask friends and family, you might be surprised who has the full version at their workplace.

in osx preview if you go to the sidebar where the pages are, right click the page and select copy. then go to file and click “new from clipboard” it creates a new file with just the part you have copied (in this case the page). then just save

A solution can be had with either:
Adobe Acrobat Pro or
Desk UnPDF

Easy. Free. Open Source. pdfsam

If you have Photoshop you can open the pages separately, than resave them in PDF or jpeg.

@StvenWesley hey bud, welcome to Fluther; although it’s helpful advice, be aware of the “no spam” policy here…