PDF Document Reader

PDF Reader: All Documents is a lightweight document viewer and editor for Android that lets you open, view, and modify PDF, Word (DOC, DOCX), Excel (XLS, XLSX), and PowerPoint (PPT, PPTX) files in a single app.

For PDFs, you can highlight text, underline sections, and annotate with a brush tool, which suits reviewing contracts, study notes, and reports. For Office files, the app supports text styling, font and alignment changes, bullet lists, spreadsheet cell and formula editing, and basic slide edits such as changing text or adding images and shapes. Smooth navigation, zoom controls, portrait and landscape support, and quick load times make it practical for mobile use. The app also works fully offline, keeping your files private on your device.