Thank you for posting your query on Microsoft Community. I will certainly help you with this.
Reading view is more streamlined clean and simple layout, book-like reading experience of webpages, without the distraction of unrelated or other secondary content on the page. This will bring whatever you're reading front-and-center.
You can even change the reading view style and font size to suit your mood.
If the Reading view icon is grayed out, then that webpage does not support turning on reading view for it. I suggest you to try using it on other website and check if it helps. The alternate option to toggle between reading mode is by pressing
Ctrl + Shift +R keys.
Hope this information helps. Post back with updated issue details for further help.
Thank you for the information. Using Microsoft Edge, I finally found a webpage where the open book icon was active. When I clicked on it (or used
Ctrl + Shift +R), it says Can't show in reading view. I am certainly looking forward to when this feature is further developed for desktop use.
I agree... I've been a supporter of Microsoft options for decades but a) if this reading mode option requires web designers to alter their code then it's not likely to ever be a useful tool outside of Microsoft and Windows-fan sites. I mean, Wikipedia
doesn't work on it... don't you think the devs should have had support for existing major resources on their spec list BEFORE they announced the feature to the public?, b) when it comes to PDFs the current options on Windows truly are not good, with Windows
tablets (I have several) the Windows 8/10 Microsoft Reader app is better than using the Adobe Reader for Windows but still neither do color inversion... Because my work is all PDF, I have a Sony 13inch eInk reader which is nice so long as you aren't reading
a file larger than 50MB as it slows down a lot on page turns but by far the *KILLER* PDF reading option is the Adobe Reader for Android, it has full screen and instant color inversion with one click, I bought a Samsung Galaxy Note 12 just for that application
and now I have the best PDF system I have ever, ever seen even when reading full Newspaper sized scanned pages. I Wish Microsoft would offer a great PDF viewer with true "Reading Mode" but it's not their thing, they have other fish to fry like making reading
mode that works internally on their own pages but not out here for the rest of us and Adobe apparently does not consider Windows worth the development any more. Before I bought the Galaxy Note 12 I was all set to upgrade my Surface Pro... but before I got
to the checkout I remembered that PDF thing and went with the Galaxy and it was, unfortunately and sadly for this long time pre-DOS/DOS/Windows Microsoft user, the correct thing to do.