All Document Reader - PDF, DOC supports a variety of file formats including PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, TXT, and RTF. This wide compatibility allows users to open and view different types of documents effortlessly, making it a comprehensive tool for managing various document formats on mobile devices.

Yes, All Document Reader - PDF, DOC is available for free download and use. It may include in-app purchases or advertisements to support development. Users can access core features without charge, while additional features or an ad-free experience might require a purchase or subscription.

All Document Reader - PDF, DOC primarily focuses on viewing and reading documents rather than editing. While it offers robust document viewing capabilities, users looking to edit or create documents might need to use specialized editing applications.

Yes, it can operate offline. Once documents are downloaded to the device, users can open and read them without internet access. This is especially useful for travel or areas with limited connectivity.

The interface is designed to be intuitive and easy to use, suitable for both experienced users and beginners. Its straightforward layout facilitates smooth navigation, making document management simple and efficient.