Title: How to Lock PDF File with Password
1How to Lock PDF File with Password? (User
Password)
2To password protect an Office document, first
open it in Word,
3Click the File menu at the top-left corner of
the screen
4On the Save as, click the Browse button.
5Set the save as type PDF
6Click the Options button at the bottom. Enable
the Encrypt the document with a password option
and click OK. (User Password)
7Enter the password you want to encrypt the PDF
file with and then click OK.
8Youll have to enter the PDF files password when
you open it.
9With this tool, you can remove all restrictions.
Here is the tool link https//www.systoolsgroup
.com/pdf-unlocker.html