Folio: PDF Scanner & Converter

Nextdio

In-app purchases

About this app

One app for every PDF task. Folio is an AI-powered PDF scanner, converter, editor, and viewer that puts 27 tools in your pocket — scan documents, convert picture to PDF, merge PDF files, split pages, compress documents, convert to Word or Excel, add a signature, and chat with any document.

📄 SCAN DOCUMENTS TO PDF

Point your camera at any document, receipt, invoice, or whiteboard. The built-in document scanner auto-detects edges, straightens pages, enhances contrast, and saves as a searchable PDF with OCR text recognition. Scan multiple pages into one PDF file.

🔄 CONVERT PDF FILES

Convert PDF to Word (DOC, DOCX), Excel (XLSX), images (JPG, PNG), or plain text. Go the other way too — turn any picture, photo, image, or spreadsheet into a clean, shareable PDF. Picture to PDF, JPG to PDF, PNG to PDF, image to PDF, and Office to PDF in a tap. The PDF converter handles batch processing, so you can transform multiple files at once.

🖼️ PICTURE & PHOTO TO PDF

Combine pictures from your gallery into a single PDF. Pick photos, reorder them, and export a polished document — perfect for scrapbooks, ID copies, portfolios, and receipts. Folio is a fast picture converter and photo to PDF maker.

🔗 MERGE & SPLIT PDF

Combine multiple PDF documents into a single file. Extract individual pages or page ranges from large PDFs. Reorder, rotate, and crop pages to build exactly the document you need.

🗜️ COMPRESS PDF

Shrink PDF file sizes for email attachments and cloud uploads while keeping text and images sharp. Choose from multiple compression levels — reduce a 50MB report to under 5MB. The PDF compressor preserves document layout and readability.

✍️ SIGN & FILL PDF FORMS

Draw or upload your signature and place it on any PDF. Create a digital signature or electronic signature for contracts, NDAs, and legal documents. Fill out forms, check boxes, and add text fields. The signature maker lets you sign PDF files and send them in seconds.

✏️ EDIT & ANNOTATE PDF

Mark up documents with the PDF editor. Annotate pages, highlight text, add notes, draw, and insert text. Full PDF annotation for reviewing reports, marking exams, and giving feedback.

📖 READ & VIEW PDF

A fast, clean PDF viewer and document viewer for opening files of any size. Scroll, zoom, search text, and jump to bookmarks. The built-in PDF reader keeps your library organized.

🔒 PROTECT & SECURE

Lock PDF files with passwords. Add watermarks to every page. Redact confidential information permanently before sharing.

🤖 AI-POWERED PDF TOOLS

- Summarize: Get concise summaries of long reports, research papers, and legal documents
- Chat: Ask questions about any PDF and get instant, accurate answers
- Extract: Pull tables, key data points, and structured information from documents automatically
- Translate: Convert entire PDF documents to another language without leaving the app

👥 WHO USES FOLIO

- Students managing lecture notes, assignments, and research papers
- Professionals handling contracts, proposals, and invoices
- Small business owners processing receipts, tax forms, and shipping labels
- Remote workers collaborating on shared documents across teams
- Anyone who works with PDF files daily and wants one app that does it all

⚙️ HOW IT WORKS

1. Open or import a PDF from Files, email, camera, or cloud storage
2. Pick a tool — scan, convert, merge, compress, sign, edit, or ask AI
3. Save, share, or export in the format you need

Your documents stay on your device unless you choose to share them.