I am a student of University.I pay $85 for each of my ebooks and have my UoP password and username to open them.
The problem is that I want to move them to my kindle dx which does not support the password part of the pdf file.How can I remove the password protect from this file.Each page is password protected, but I only have to put in my password one time and it opens the whole ebook.However, on the kindle dx, the cursor does not go to the username or password box, so i can't open it on my kindle.I tried buying and using a PDF restrictions remover but all it does is say "Restrictions Removed" but the password protect is still on when I transfer it to the kindle.
Any suggestions of what product to use or what to do?
Pls help!!!
Thank you so much in advance.

Hi,actually there are two kinds of pdf password--user password and owner password. User password prevents you from opening the pdf; the one you set for your ebooks belongs to this kind. Owner password prevents you from copying, editing and printing pdf, which you didn't mention. The pdf password remover you have used is probably made to remove owner password which you don't need.
That you know the user password makes things very easy if you want to remove pdf password.

You should contact the publisher to ask about a compatible versions for your reader and if they don't offer one, consider purchasing a different format, or potentially working with them to help them provide it.

Many pdf files has password protection which were created and encrypted by a former department manager. So, if you don't have the user password, you need to use some pdf *** to crack the pdf, but you must be legal to do this. Therefore，unless you can get the password from the author you will need a PDF Password Remover, pls check this tutorial about how to remove pdf password.Hope it will help you find the solution.