Adobe Acrobat XI User Manual download pdf (Page 361)

100

101

354

Security

Last updated 1/14/2015

If the PDF is secured with both types of passwords, it can be opened with either password. However, only the

permissions password allows the user to change the restricted features. Because of the added security, setting both types

of passwords is often beneficial.

Note: You cannot add passwords to a signed or certified document.

Add a password to a PDF

You can add password security to a PDF. To open the PDF, the user must enter a password.

1 Open the PDF and choose Tools > Protection > Encrypt > Encrypt with Password. (If the Protection panel is not

visible, choose View > Tools > Protection.)

To apply protection to a PDF Portfolio, first open the PDF Portfolio and choose View > Portfolio > Cover Sheet.

Then choose Tools > Protection > Encrypt > Encrypt With Password.

Note: If these options are unavailable, it’s either because the document or PDF Portfolio already includes security

settings, was signed with a certificate-based signature, or was created in LiveCycle Designer ES.

2 If you receive a prompt, click Yes to change the security.

3 Select Require A Password To Open The Document, then type the password in the corresponding field. For each

keystroke, the password strength meter evaluates your password and indicates the password strength using color

patterns.

4 Select an Acrobat version from the Compatibility menu. Choose a version equal to or lower than the recipients’

version of Acrobat or Reader. The Compatibility option you choose determines the type of encryption used. It is

important to choose a version compatible with the recipient's version of Acrobat or Reader. For example, Acrobat 7

cannot open a PDF encrypted for Acrobat X and later.

• Acrobat 6.0 And Later (PDF 1.5) encrypts the document using 128-bit RC4.

• Acrobat 7.0 And Later (PDF 1.6) encrypts the document using the AES encryption algorithm with a 128-bit key

size.

• Acrobat X And Later (PDF 1.7) encrypts the document using 256-bit AES. To apply 256-bit AES encryption to

documents created in Acrobat 8 and 9, select Acrobat X And Later.

5 Select an encryption option:

Encrypt All Document Contents Encrypts the document and the document metadata. If this option is selected,

search engines cannot access the document metadata.

1 2 ... 356 357 358 359 360 361 362 363 364 365 366 ... 589 590

Comments to this Manuals

avenue 06 Jan 2024 | 15:21:41

Very advise you to visit a site that has a lot of information on the topic interests you.

novo pet 10 Jan 2024 | 16:26:21

Also what in that case to do?

Adobe Acrobat XI User Manual Page 361

Comments to this Manuals

Related products and manuals for Software Adobe Acrobat XI