Folio PDF Editor, Reader, Scan

Contains adsIn-app purchases
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Learn more
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About this app

Folio is the all-in-one PDF editor, reader, and scanner for Android.
Edit text, sign contracts, fill forms, scan documents, and get
AI-powered summaries — all offline, no cloud, no file size limits.

⭐ TRUSTED BY STUDENTS, PROFESSIONALS & BUSINESSES WORLDWIDE
Whether you're signing a lease, annotating a textbook, filling a tax form,
or summarizing a 100-page report — Folio gets it done in seconds.

✏️ EDIT & SIGN PDF
- Edit text directly — cover and retype any text in matching style
- Draw and insert your signature — sign contracts instantly
- Fill PDF forms — type into any form field
- Add text annotations, sticky notes, and highlights
- Permanently redact sensitive information

📷 DOCUMENT SCANNER
- Scan any document with your camera — receipts, contracts, IDs
- Auto edge-detection with perspective correction
- Export as multi-page PDF instantly
- Color, grayscale, and black & white modes

✨ AI PDF ASSISTANT (Powered by Gemini Nano)
- AI Summary — get a bullet-point summary of any PDF in seconds
- AI Abstract — distill any document into one clear sentence
Runs privately on your device — your documents never leave your phone.

📖 BEST-IN-CLASS PDF READER
- Night, sepia, and day reading themes
- Text-to-speech — listen to any PDF hands-free
- Auto-scroll, pinch zoom, bookmarks, page jump
- Vertical scroll, page flip, and two-page spread modes
- Full-document search — find any word instantly

🔧 30+ PDF TOOLS
- Merge PDFs — combine multiple files into one
- Split PDF — extract any page range
- Compress PDF — shrink file size without quality loss
- Delete & Rearrange Pages — reorganize any document
- Lock / Unlock PDF — add or remove password protection
- PDF to Word — convert to editable .docx
- Word to PDF — convert .docx to PDF
- Image to PDF — convert JPG, PNG to PDF
- PDF to Image — save pages as JPG
- OCR — extract text from scanned documents
- Smart Extract — auto-detect emails, phone numbers, dates & addresses
- Add Watermark, Page Numbers, Bates Numbering
- Create Fillable PDF — build forms with fields and checkboxes
- Overlay Compare, Side-by-Side view, and more

🔐 PRIVATE & SECURE — 100% OFFLINE
Unlike most PDF apps, Folio never uploads your files.
Everything runs on your device — no account, no login, no cloud.
Perfect for sensitive documents: contracts, medical records, legal files.

💎 FREE TO USE — UPGRADE WHEN YOU NEED MORE
✅ Free: PDF reading, scanner, annotations, Image to PDF, rotate pages
🔧 Premium: All 30+ editing tools, no ads
✨ Premium + AI: Everything + all AI features — 3-day free trial


Download free — no account required.
PDF editor, scanner & AI — sign, fill forms, annotate & summarize
Updated on
Sep 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Financial info and 2 others
  • This app may collect these data types
    Location, Financial info and 3 others
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

• Arabic, Persian and Dutch added, with full right-to-left layout.
• In right-to-left languages, signatures and text now save exactly where you place them, and reader arrows point the right way.
• Scanning uses far less memory, so more pages fit in one document.
• Save to Cloud now confirms your file was sent.
• Layout and wording fixes in several languages.
• More reliable purchases and restores, with clearer confirmations.