Free PDF Reader - All Document Viewer is a very good application to read PDF files on your android smartphone or tablet. It can also be used to read other document types like Word, Excel, and PowerPoint.

It has a user-friendly interface and supports a wide range of formats. It can be easily downloaded and installed on your device.

Once you have it installed, you can start using it right away. It is also possible to choose the desired document format. There are different options for that.