Is there any plan to publish this app to windows 10 app store?

The existing pdfreaders in app store are not easy to use. It would be nice if sumatra pdf could be download in the App Store.

I can’t promise anything but I do plan to look into this. This is tracked by https://github.com/sumatrapdfreader/sumatrapdf/issues/794

is the owner of sumatrapdf in microsoft store Pavel Kislov the same as the owner of the normal sumatrapdf? is the app from microsoft store secure and safe?

NO.

Personally I don’t trust it since last I checked this ‘Pavel’ was violating the GPL by not providing his modified source, so no-one knows what changes he’s made. Please go through the following thread for a more detailed discussion: