How can my user password - protect a document that has been digitally signed?

Hello

I've seen a few threads that indirectly address some parts of this question, but always find myself not sure about whether this process can be done - and if it is possible, I could use your help to understand - thank you.

Two of our end users use digital signatures (based on certificates) in Acrobat 9 Pro to sign documents attesting the status of precision & calibration of equipment of laboratory for use in a legal environment.  These end users are concerned that their documents could be amended or edited and asked me if password can also be applied to the documents that must be digitally signed.

Thanks in advance for your advice.

Do you apply 'Open' password password "Permissions" or both? If you apply 'Permissions' password (with or without the 'Open' password) of course I "Edit" include filling in form fields and signing existing signature fields"or" commenting on, fill in the form fields and signing existing signature fields. If the permissions do not allow you to connect, you are unable to sign.

Be aware of the alert that Acrobat appears when you apply the password "Permissions" that all Adobe products meet the permissions that you set, but this 3rd party PDF viewers may not (and many do not).

Tags: Acrobat

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