MoDocs

Mobile Documents — a lightweight Android app for viewing and working with documents on your phone.

Features

- PDF — View, search, fill forms (tap to place text, signatures, checkmarks, dates), drag to reposition, adjust font sizes, and save filled copies - DOCX — View Word documents with formatting, images, tables (borders, merged cells, column widths), and basic layout - XLSX — View and edit spreadsheet cells, save changes - PPTX — View presentations with text, shapes, images, and backgrounds

Known Limitations

DOCX

- Documents won't show up exactly how they look in Word, especially if they use complicated features like nested tables or unusual spacing/positioning. For heavy Word editing, use the real thing.

XLSX

- No formula support — formulas are not evaluated, only their last cached values are shown - Editing is limited to viewing and modifying cell values (no formatting changes, no inserting rows/columns)

PPTX

- This is the least baked feature (because it's very rare I open a PPT on my phone) - Complex graphics, SmartArt, charts, and animations will not render - No editing support for presentations — just viewing - If you need to do a lot of presentation editing on mobile, just get Microsoft Office

PDF

- Fill & sign flattens annotations onto a re-rendered copy of the PDF (not a direct edit of the original file structure) - Very large PDFs may be slow to save

License

MIT License.