In the Password Security Settings window, ensure that the settings are as follows: a.

Click Yes in the Applying New Security Settings dialogue box.

From the Advanced Options or the Encrypt drop down menu, select Encrypt with Password.With your document open, click on the Protect tool from the right pane.The following instructions were created under Windows, but the procedure is almost identical under Mac OS. This function does not simply passphrase-protect a file, but it encrypts is using AES encryption. Encrypt files using Adobe Acrobat Pro DCĪdobe Acrobat Pro DC (not Adobe Reader) protects files using it's Protection function.Interestingly, when I control-click a pdf and select 'Open With' from the menu, Adobe Acrobat is listed in the first position indicating that it is the default application for opening pdf files.Īny advice on how to remedy this issue would be greatly appreciated. When I open a pdf directly from Acrobat (or by dragging the file to the Acrobat Icon in the Dock), I receive a message from Acrobat to change the default application to Adobe Acrobat, and although I select 'Make Acrobat Default', pdf files are still opening in Preview when double clicked. Then I tried chaining it from Books to Adobe Acrobat and the file again opens in Preview. Now, when I chose 'Books' as the default, it worked (although the file icon remains that of Preview). I have tried changing the 'open with' application back to Preview, and then back to Acrobat.

However, in the finder, the icon is still that of Preview, and when double-clicked, it opens in Preview. Indeed, when I select a pdf and 'get info', Adobe Acrobat is indicated as the application to open pdf files. I'd like them to open with Adobe Acrobat. In this case PDF's are opening with Preview. For reasons unknown to me, I cannot change the default 'open with' application.

Acrobat pro dc mac