PDF Prime is the easiest PDF file merge, split, lock, and unlock tool available. If you do have trouble using PDF Prime, you can learn how to use PDF Prime with our quick and easy help articles:
PDF Prime Help - The in-app help file included with PDF Prime, but online.
How to Merge PDF Files - a brief guide describing what it means to merge or combine pdf files.
How to Split PDF Files - an explanation of splitting or separating pdf files.
How to Lock PDF Files - an introduction to locking PDF files.
How to Unlock PDF Files - how to unlock password protected PDF files.
If you still have questions with PDF Prime, feel free to ask us.
You can also email us at: support@PDFPrime.com
