Document Reader is a free Android app developed by Apps 4 Life that lets you read, view, and manage office documents in PDF, PPT, XLS, or Word format on your phone. This easy-to-use document viewer can be used offline, making it convenient for users who are always on the go.

With Document Reader, you can search and sort your files and manage your documents with ease. You can also bookmark your favorite documents for easy access later. In addition, the app allows you to create new PDF files or merge them. It even has a feature that lets you turn images into PDF files.

Overall, Document Reader is a useful app for anyone who needs to view and manage office documents on their phone. Its offline capabilities and user-friendly interface make it a great choice for productivity on the go.