request for improvements
This is 1st time I'm using the online acrobat and notice a few limitations that you should consider resolving.
No dual page view.
It's not possible to lock the document for changes. I'm mostly interested in reading PDF files residing on Google Drive, I'm not interested in editing, so I would appreiciate being able to have the edit mode disabled by default.
No way to set the default state of UI features. Like it's not open to always have the table-of-contents visible when opening files.
The reader doesn't remember the last location in the document. If it's too much trouble for saving this online then just use a local browser data and don't sync this but please implement it.