gaksind 0 Report post Posted January 15, 2019 I am using office 365, and NitroPro 10, I have all the attachment boxes checked in the trust centre for outlook, but I cannot preview any PDF file. If I change my viewer to Adobe, it works, but as soon as I change it back to Nitro, I am back where I started. Any ideas would be helpful. Share this post Link to post Share on other sites
Steven Zakulec 60 Report post Posted January 16, 2019 Make sure you're on the last released version of Nitro 10: http://kb.gonitro.com/knowledgebase#/search/previous version/000001644 1 Share this post Link to post Share on other sites
