What is the difference between a PDF open password and a permission password?
Probably the difference between your own home and someone else's.
Opening the password is like going to someone's home, pdf editor freeyou can visit, but you can not use the items in the mobile house, and the permission password is like we go back to China's own home, you can modify the content of the information editing ability and other format conversion and other editing.
Do not know my explanation, can the object understand? If you don't understand, I will use my software FoxitPDF Editor Pro to demonstrate the difference between two passwords.
To prevent friends from wanting this software, I put the portal directly in the first place :PDF permission editing.
First, PDF file password
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How to enter PDF file password? When we get an encrypted PDF file, click "Protect" → "Secure Document" → "Password Protection" and enter the correct password to open and read the PDF file.
Second, PDF permission password
Same thing if it's a permission password. You need to open the PDF editor first, then open the PDF file, and then enter the password to modify it.
Click on the left side of the management permission list to display, click "permission" to set the system permission, in the "permission setting" dialog box, check "limit printing, editing technical documents and permission Settings", and then we will analyze the corresponding course Settings according to the needs of enterprises.
If you use two types of encryption in a document, one type of password can open the document, but only the document permission password can change permissions.
That's a lot clearer, right? Do you understand the difference between them now? If you haven't already, you can try setting two passwords yourself with the editor.