Adobe Acrobat XI Bedienungsanleitung Seite 374

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Security
Last updated 1/14/2015
The encryption algorithm and key size are version-specific. Recipients must have the corresponding version (or
later) of Acrobat or Reader to decrypt and read the document.
If you select 128-bit AES, recipients must have Acrobat 7 or later or Reader 7 or later to open the document.
If you select 256-bit AES, Adobe Acrobat 9 or later or Adobe Reader 9 or later is required to open the document.
5 Create a recipient list for the encrypted PDF. Always include your own certificate in the recipient list so that you are
able to open the document later.
Click Search to locate identities in a directory server or in your list of trusted identities.
Click Browse to locate the file that contains certificates of trusted identities.
To set printing and editing restrictions for the document, select recipients from the list, and then click
Permissions.
6 Click Next to review your settings, and then click Finish.
When a recipient opens the PDF or PDF Portfolio, the security settings you specified for that person are used.
Change encryption settings
1 Do one of the following:
For a single PDF or a component PDF in a PDF Portfolio, open the PDF.
For a PDF Portfolio, open the PDF Portfolio and choose View > Portfolio > Cover Sheet.
Select Tools > Protection > More Protection > Security Properties. If you don’t see the Protection panel, see the
instructions for adding panels at
Task panes.
2 Click Change Settings.
3 Do any of the following, and then click Next.
To encrypt different document components, select that option.
To change the encryption algorithm, choose it from the menu.
4 Do any of the following:
To check a trusted identity, select the recipient, and then click Details.
To remove recipients, select one or more recipients, and then click Remove. Do not remove your own certificate
unless you do not want access to the file using that certificate.
To change permissions of recipients, select one or more recipients, and then click Permissions.
5 Click Next, and then click Finish. Click OK to close the Document Properties dialog box, and save the document to
apply your changes.
Remove encryption settings
1 Do one of the following:
For a single PDF or a component PDF in a PDF Portfolio, open the PDF.
For a PDF Portfolio, open the PDF Portfolio and choose View > Portfolio > Cover Sheet.
Select Tools > Protection > Encrypt > Remove. If you dont see the Protection panel, see the instructions for adding
panels at
Task panes.
2 If prompted, type the permissions password. If you don’t know the permissions password, contact the author of the
PDF.
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Kommentare zu diesen Handbüchern

avenue 06 Jan 2024 | 14:21:41

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

novo pet 10 Jan 2024 | 15:26:21

Also what in that case to do?