1- speed is very slow specially if you quickly scroll to the bottom.
2- when you quickly scroll down to a position, it’s no need to render all previous pages. now it does so. but simply render the visible ones.
3- when scroll in thumbnails to some position (for example end of document) and close the thumbnail view and continue to read and research, if you refer to thumbnails it is still at the previous position (end of document in our example) not the current position. while the normal behavior is that whenever we open the thumbnail view, we can see the current page highlighted.
these are very important cases for make the thumbnail navigation useful.
Also, when opening thumbnail view, it would make more sense for it to auto-locate to the current position, not the beginning of the document.
As you mentioned, it’s super slow, especially on large textbooks, because it is rendering every single page, every single time.
Thumbnail view in pdf apps is incredibly essential. Right now in MN it’s incredibly useless on large textbooks. Assuming this is an app for students, this is happening to everyone.
Thank you for writing in. I have raised your request to our Development team but we cannot assure a time frame when it will be put into effect. Please feel free to contact us again if you need any assistance and we will be happy to provide further help.