How locking a PDF and avoid web page unlockers

Hi guys:

I create a PDF files and locked it with all possible combinatios as numbers and simbols with Keeper software,

But web pages unlock it in just few seconds!

How can avoid this?

Regards

JRM

This topic has been closed for replies.

Inspiring

What are you trying to do? Simply password protect a PDF so someone can't open it?

Community Expert

You can't, really, unless you spend a lot of money on DRM protection.

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