There was an error opening this document. The selected file cannot be found

Problem Description:

When you print the multiple PDF files in Microsoft Office Outlook 2007, you receive the following error message from Adobe Reader:

"There was an error opening this document. The selected file cannot be found."

Resolution:

To resolve this issue, apply the following update: http://support.microsoft.com/kb/2276479  

After you install the hotfix package, follow these steps to enable the hotfix:

Click Start , click Run , type regedit in the O pen box, and then click OK.

Locate and then select the following registry subkey:

HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Options

On the Edit menu, point to New , click  Key , type Attachments , and then press ENTER. 

Locate and then select the following registry subkey:

HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Options\Attachments 

On the Edit menu, point to New, click DWORD(32-bit) Value , type FileTrackIdle , and then press ENTER. 

Right-click FileTrackIdle , and then click  Modify.

In the Value data box, type 5000, and then click OK.

Note If the issue persists, increase the value data by 1000 until you can successfully print all the PDF files. 

Exit Registry Editor.

Note: Before making any changes in the registry, I would request you to take the backup first and then make the changes.

How to back up and restore the registry in Windows XP

http://support.microsoft.com/kb/322756

Please let me know in case of any queries/questions regarding the above mentioned information. I would be more than happy to help you as well as resolves your issues, Thank you.