How to Lock a PDF but Still Allow Viewing?

I want to lock a PDF file to restrict editing, copying, and printing, but I still want others to be able to open and view it. Is there a way to do this? I do not want to completely block access—just protect the content from being modified. What is the best method or tool to apply this kind of protection? Please suggest any reliable software to process this.

  • Yes, lock a PDF file to restrict editing, copying, and printing, but I still want others to be able to open and view it with the help of Softaken PDF Protector is a good solution for this because it lets you implement permission-based limits without needing to set an open password. This means that users who get the document can open it without having to provide a login or password, but they won't be able to change, copy, or print it unless they have the right password. It's easy to use the software. Just upload your PDF, specify the limits you want to apply, establish a permissions password if you like, and save the file. This software will work on Windows 11, 10, 8.1, 8, 7, XP, and Vista operating systems without any restrictions.