Operation Manual

306
Security
Last updated 4/7/2015
Note: If you haven’t saved the file, you can select redaction marks in the document and press Delete to remove the
redaction mark. The redaction marks become permanent after you save the file.
8 To remove the marked items, click Apply in the secondary toolbar, and then click OK.
The items aren’t permanently removed from the document until you save it.
9 If you want to search for and remove hidden information in the document by using the Remove Hidden Information
feature, click Yes. Otherwise, click No.
10 Choose File > Save, and specify a filename and location. If you don’t want to overwrite the original file, save the file
with a different name, at a different location, or both.
Find and remove hidden content
Use the Remove Hidden Information feature to find and remove content from a document that you don’t want, such as
hidden text, metadata, comments, and attachments. When you remove items, additional items are automatically
removed from the document. Items that are removed include digital signatures, document information added by third-
party plug-ins and applications, and special features that enable Adobe Reader users to review, sign, and fill PDF
documents.
To examine every PDF for hidden content before you close it or send it in email, specify that option in the Documents
preferences using the Preferences dialog box.
1 Choose Tools > Redact.
The Redact toolset is displayed in the secondary toolbar.
2 In the secondary toolbar, click Remove Hidden Information.
If items are found, they are listed in the Remove Hidden Information panel with a selected check box beside each
item.
3 Make sure that the check boxes are selected only for the items that you want to remove from the document. (See
Remove Hidden Information options.)
4 Click Remove to delete selected items from the file, and click OK.
5 Choose File > Save, and specify a filename and location. If you don’t want to overwrite the original file, save the file
with a different name, at a different location, or both.
The selected content is permanently removed when you save the file. If you close the file without saving it, repeat this
process, making sure to save the file.
Remove Hidden Information options
Metadata
Metadata includes information about the document and its contents, such as the author’s name, keywords, and
copyright information. To view metadata, choose File > Properties.
File Attachments
Files of any format can be attached to the PDF as an attachment. To view attachments, choose View > Show/Hide >
Navigation Panes > Attachments.
Bookmarks
Bookmarks are links with representational text that open specific pages in the PDF. To view bookmarks, choose View
> Show/Hide > Navigation Panes > Bookmarks.