Page 341 - Enhancing CAD Drawings with Photoshop

4386.book Page 325 Monday, November 15, 2004 3:27 PM

PROTECTING YOUR INTELLECTUAL PROPERTY 325

WARNING If you use a permissions password, you will have to enter it every time the document is
opened in Photoshop; you won’t have to enter it in Acrobat, however.

6. Choose 128-bit RC4 (Acrobat 5) from the Compatibility drop-down list box. This is strong
encryption of the same caliber as used in online banking.
7. Choose None from the Changes Allowed drop-down list box to completely block editing.
Click the Printing drop-down list box, and select Fully Allowed. (Low Resolution and Not
Allowed are also choices.) Click OK. Figure 9.38 shows the options for steps 4 through 7.
8. You are immediately asked to confirm both the open and permissions passwords. Enter the
passwords and click OK in the PDF Options dialog box. The PDF file is written to disk.
Because you checked View PDF after Saving in step 2, you are immediately asked to confirm
the open password as the document is opened in Acrobat.

Figure 9.36
Creating a multipage
PDF presentation

Figure 9.37
PDF Options dialog box