Outlook 2007 corrupting PDF attachments

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Brandysmom

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Outlook 2007 has started corrupting incoming PDF attachments, even if I don't open them. I have disabled the anti-virus software, and the problem continues.

The error message on the PDFs is that the file is damaged and could not be repaired. I've run three different anti-virus, anti-spyware programs but they've found nothing.

I've also sent a perfectly good PDF from my Yahoo account to my Outlook account.

1. I opened it in Outlook and it was corrupted.

2. I did it again but forwarded it back to my Yahoo account unopened. When I tried to open it in Yahoo, I got a message that it had a virus and should not be opened.

Will upgrading to Outlook 2010 resolve the problem? I'm not sure what else to try.
 
No, upgrading is unlikely to fix the underlying cause.




Are all pdf's affected or only ones from certain senders? Are they corrupt if you run outlook in Safe mode? Test with new pdf's as existing messages with pdf's are probably corrupted permanently.
 
They are all corrupt no matter who the sender. I've tried new PDFs that I know are good to start with. I don't know how to test in a safe mode.
 
Close Outlook. Hold Ctrl as you click on the Outlook icon to start in Safe mode.See if newly received messages are corrupt.
 
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