RioPdf - PDF Reader & Editor

RioPDF Tools is a complete PDF app for Android — read documents, add annotations, sign files, edit pages, and convert photos or Office files to PDF.

READ PDFs COMFORTABLY
• Smooth pinch-to-zoom viewer with swipe navigation
• Full-screen reading mode
• Text selection and copy
• Search inside documents
• Bookmarks and table of contents
• Thumbnails and jump to page
• Remembers your last page

ANNOTATE & MARK UP
• Highlight, underline, and strike-through text
• Freehand ink drawing with eraser
• Sticky notes on any page
• Save markups directly to your PDF

SIGN & EDIT PDFs
• Draw your signature and place it on any page
• Reorder, rotate, delete, insert, and extract pages
• Merge multiple PDFs from your library
• Split PDFs from the document menu

CONVERT TO PDF
• Photos and HEIC images
• Pasted text
• HTML files
• Word documents (.docx, .txt, .md)
• Excel spreadsheets (.xlsx, .csv)

ORGANIZE YOUR LIBRARY
• Import PDFs from your device or other apps
• Search, sort, folders, and tags
• Favorites for quick access
• List and grid view

SETTINGS
• Light, dark, and system theme
• Share the app and send feedback

RioPDF Tools helps you work with PDFs in one place — whether you are reading a report, signing a contract, editing pages, or creating a PDF from photos or documents.

Download RioPDF Tools and take control of your PDFs today.