Add vertical scrolling and bookmarks to pdf view
I normally use the Documents app by Readdle for PDF viewing and annotation. Now that you have added PDF markup to OneDrive (for which I thank you!) if you added vertical scrolling as an option for viewing PDF's in the settings, and if you added support for bookmarks in PDF's, I could probably abandon the use of Documents by Readdle and switch over completely to OneDrive for most of my mobile PDF needs.
Looks like Microsoft still has not done this. I’m read a 600 page pdf and I occasionally have to refer to the appendices and it is such a pain.
Wonyong Park commented