Database Reference
In-Depth Information
NOTE
You can see the PDF file's Title, Subject, and Author in Adobe Acrobat's PDF viewer's Document
Properties window. In Mac OS X's Preview program, choose Tools→Inspector, instead.
In the Security tab ( Figure 21-3 ), you can decide how much access you give your recipients
when they receive your file. You can choose:
Figure 21-3. The Security tab lets you lock down your PDF file if you need to prevent inappropri-
ate use. Some older PDF reading programs may not recognize all these options. If someone's PDF
reader doesn't have security features, it can't open the PDF file at all, so your data is still safe.
Require password to open the file . Click the checkbox to turn this option on and then
enter a password. This checkbox is useful if you're selling a catalog and provide pass-
words only to people who've paid to receive it. Then, of course, there's the standard use;
you just don't want every Malcolm, Reese, and Dewey poking around in your PDF files.
Require password to control printing, editing and security . Click the checkbox to
turn this option on and enter a password. You might want your PDF freely distributed but
not so freely used. If so, don't require a password to open the file, but lock it down so
nobody can use the material without your permission and a password. With this option
checked, a whole raft of new options becomes available. You can set the following:
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