How to Lock PDF
With the constant development in technology, the circulation of documents is made easier and more prevalent. With Adobe Acrobat, you can lock your PDF and help control what others do with the documents you create. You can prevent your work from being altered, reproduced or damaged.
These tools are very reassuring when it comes to protecting the reputation of your business or the integrity of your work.
With a few simple steps, you can protect professional documents created at work as well as personal projects.
In some cases, some documents may need to be altered by users or recipients. In application forms, for example, some fields may need to be filled. By setting permissions, you can decide whether or not those who receive your documents are allowed to edit or print them.
To start locking PDF files in Adobe Acrobat 9 Pro:
Open the file you wish to protect and select the Secure icon from the toolbar.
Select Password Encryption from the menu.
In the next window, check the box beside Restrict editing and printing of the document in the Permissions section.
Enter a password in the field below.
Choose the level of Printing allowed, or print lock PDF content altogether and choose None.
Choose from five levels of Changes:- A) None
- B) Inserting , deleting and rotating pages
- C) Filling in form fields and signing existing signature fields
- D) Commenting, filling in form fields, and signing existing signature fields
- E) Any except extracting pages
Depending on options you choose, you can enable text copying as well.
Click on OK.
