Pros:

The app is a very good app that web developers can use

The app makes it easy for someone to read any pdf files even if you do not have pdf readers on your device

The app is easy to download and use it for the purpose it was created for

The app has a good interface and nice feature

The app also has the free version which enables you to use it for free

Cons:

The app do not accept file size above 15mb