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66
Adobe Acrobat Help
Acrobat Distiller Options
Using Help
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Contents
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Index
Back
66
3
The encryption level is set by the compatibility level selected in the General Job options
panel. The 40-bit RC4 (Acrobat 3.x, 4.x Compatible) encryption level has a lower level of
security, but is compatible with Acrobat 3 and 4. The 128-bit RC4 (Acrobat 5 Only)
encryption level has a higher level of security, but is compatible only with Acrobat 5.
Note:
The 128-bit RC4 option is available only if you select Acrobat 5.0 compatibility in the
General job options for Distiller, as described in
“Setting the Distiller General job options”
on page 48
.
4
For 40-bit RCA encryption, select options to define the level of user actions allowed:
•
No Printing to prevent users from printing the file.
•
No Changing the Document to prevent users from creating form fields, as well as
making any other changes.
•
No Content Copying or Extraction, Disable Accessibility to prevent user from copying
text and graphics, and disabling the accessibility interface.
•
No Adding or Changing Comments or Form Fields to prevent users from adding or
changing these areas. (Users can fill in the fields.)
5
For 128-bit RCA encryption, select options to define the level of user actions allowed:
•
Enable Content Access for the Visually Impaired to allow document contents to be used,
which is required to support the Accessibility feature.
•
Allow Content Copying and Extraction to let users select and copy the contents of the
PDF document. This option also lets facilities that need direct access to the contents of
a PDF, such as Acrobat Catalog, get to those contents.
6
Choose an option from the Changes Allowed menu to describe the kind of changes
you’ll allow users to make on the PDF document:
•
None to prevent users from doing anything with the file, including filling in signature
and form fields.
•
Only Document Assembly to let users insert, delete, and rotate pages, and create
bookmarks and thumbnails.
•
Only Form Field Fill-in or Signing to let users sign and fill in forms, but not create them.
•
Comment Authoring, Form Field Fill-in or Signing to let users do everything described
in the previous options, plus add comments.
•
General Editing, Comment and Form Field Authoring to let users do anything to the
document except extract contents, and print.
7
Choose an option from the Printing menu to define the level of printing users are
allowed:
•
Not Allowed prevents users from printing the document.
•
Low Resolution lets users print, but at a resolution that prevents the user from re-
creating the PDF file with different security settings. (Printing may be slower because
each page will be printed as a bitmapped image.)
•
Fully Allowed lets users print at any resolution, directing high-quality vector output to
PostScript and other printers that support advanced high-quality printing features.