All Document Reader: PDF Viewer is a versatile mobile application that allows users to open and read various document formats. It mainly supports PDF files, but also handles formats such as DOC, DOCX, XLS, XLSX, PPT, TXT, and others. This makes it an essential tool for users managing multiple document types in professional and personal contexts.

All Document Reader: PDF Viewer is available for free, granting access to basic features at no cost. However, it may offer in-app purchases or a premium version that unlocks additional functionalities or removes advertisements. Users should review the app store listing for specific details on potential costs.

The user interface of All Document Reader: PDF Viewer is designed to be highly intuitive and easy to navigate, suitable for both beginners and experienced users. Its clean layout provides straightforward options to open, view, and manage documents, making it accessible for users with various levels of technical skills.

Yes, users can access their documents offline with All Document Reader: PDF Viewer. This feature is especially beneficial for reading or referencing documents during travel or in areas with limited internet connectivity. Nonetheless, features like cloud storage access require an internet connection.

All Document Reader: PDF Viewer mainly emphasizes the document viewing experience. While it may include some basic annotation tools, its editing and annotation capabilities are limited. For advanced editing, users might need to use dedicated document editing applications.