Outlook emails pdf attachments can't open

Hi Shobharanit

Hope you are doing well and sorry for the trouble. As described, you can't open pdf attachments in my outlook email incoming attachments.

Would you mind elaborating a bit more about the steps you are doing to open the PDF attachments in outlook? What happens when you try to open the PDF, do you get any error message? If yes please share the screenshot of the same for a better understanding.  A small video recording of the same would be very helpful.

Please try to download the PDF to your computer locally and then try to open it with Adobe Acrobat/Reader DC application and check.

I have also fond a similar discussion on MS support page here https://social.technet.microsoft.com/wiki/contents/articles/53322.outlook-problem-with-pdf-preview-handler.aspx , please check if this is what you are looking for.

Regards

Amal