Scroll to the Security section and clear the Enable Enhanced Protected checkbox.If your PDFs are opening in a native application such as Acrobat Reader, check the IE settings as described below. Internet Explorer includes a built-in PDF viewer that allows you to view almost all PDF files found on the web without a plugin. This article provides information on how to get PDF Forms and Adobe Reader working on your computer. We are currently using 86.0.622.51 but I've also tried dev build 88.0.673.Journey Platform Previously known as the Transact Platform. We would use the Edge Chromium built in pdf viewer but layers don't show, so have to use IE Mode so it loads the Adobe viewer instead. At first we thought it was the Adobe settings zooming out to page width, but I've set Adobe zoom to 10% and reloaded the pdf in IE Mode and that appears tiny at 10% but Edge still zooms out for some reason. If I set the dpi zoom to 150% on a 1920x1080 resolution screen and load the pdf it zooms out to 67%. We've found if you also set the Windows display properties dpi to another value such as 125% on a 1920x1080 screen when you load the pdf it zooms out to 80%, then because the web app is on the same domain as the pdf when going back to the web app its zoomed out to 80% also. Loading one of our web apps in IE Mode clicking on a pdf opens in new tab, go back to the web app tab and it zooms out. We found the issue on a 4k laptop and screen. OnDocumentModeSet document_mode = have the exact same issue, been banging our heads the past few days trying to track the cause down. InternetExplorerDidNavigate pending_nav_entry_id_ = 0 OnHasBeforeUnloadChanged has_before_unload = 1 NetworkDelegate::NotifyBeforeURLRequest: $top=1500&$select=id,displayName,jobTitle&$filter=personT. NetworkDelegate::NotifyBeforeURLRequest: OnHasBeforeUnloadChanged has_before_unload = 0 OnDocumentModeSet document_mode = 110000 CheckInternetExplorerNavigationEntry URL matches IE11 or NEUTRAL rule on sitelist: I believe it is possible to duplicate on any display scaling other than 100%. The redacted URLs are both the same, but it seems like Edge is correctly reading the 100% zoom preference, then pulling 80% out of nowhere. Here is a log showing the zoom changing without user interaction.

Internet explorer view cdf files