PDF Master is a Multiple tab PDF reader.
Besides these features
1) Multiple tabs as chrome
2) PDF annotation feature
3) List recently closed PDF files in thumbnails
4) Fast search
5) Drag and drop PDF file into the reader to open it directly.
You can save your PDF and annotations to Diigo account just as you annotate web pages.
Ratings and Reviews
The app is useless if you don't create an account. Tried to register for an account numerous time with different usernames, emails, and passwords and "registration failed". Maybe it should say why the registration failed.
During the 5 minutes before it crashed, all it would let me do was highlight existing text on a PDF.
Great apps …but can be improved
I like the simple and clean design. Multi-tab is my fav feature, however I noticed that if I close the app with multiple PDFs open, and relaunch, it only brings back the last open file, and not all the tabs that I had opened before. Looks like a bug, but if not, then bringing back all the previously opened tabs would be great.
With Family Sharing set up, up to six family members can use this app.