Your PDFs may contain important information or sensitive content.  In these cases you want to protect it with a password and restrict permission from further editing or writing.  But before you go ahead and apply a password to the PDF you should know there are two types of PDF password.

Two types of PDF Passwords

Permission password

A permission password restricts editing, printing, and copying the any contents of a PDF file.  Recipients can still open the file, while they won’t have any permission to perform any editing, printing, copying actions or other restrictions set by the owner without the correct password.

Document Access password

Before you can open the PDF you will need to enter the correct password to gain access to viewing the PDF.

How to apply password protection online?

Easily add a password protection Online using VP Online PDF Editor

Step 1: Upload your PDF

Step 2: Edit or write content accordingly then

  • Click “Export”
  • “Save as PDF”


Step 3: Go to Document Properties -> Security -> Document Security

Check and select all the appropriate permission settings.  Then press OK and Export.

Visual Paradigm Online PDF Editor is easy to use and simple to manage.  Be sure to check out this awesome editor for more online PDF editing features.