PDF Master AI: Edit, Scan, OCR

PDF Master AI is a complete PDF toolkit for your phone. Scan paper documents, read and edit PDFs, convert between formats, and pull text out of any file — with AI features that run entirely on your device.

Your documents stay on your phone
Text recognition, translation and summarization all run directly on your phone using on-device machine learning. Your files are never uploaded to a server. No account, no sign-in, no cloud.

Scan documents
Use your camera to capture receipts, ID cards, notes and contracts. Edges are detected automatically and pages are straightened, then saved as a clean PDF. Scans are organized by category so they are easy to find later.

Read and edit
Open any PDF with smooth zoom and page navigation. Add or change text directly in a PDF, annotate pages, and save your changes.

Convert files
- Word, Excel, PowerPoint, images, HTML and plain text into PDF
- PDF into text or images

Organise pages
- Merge several PDFs into one document
- Split a PDF into separate files
- Compress a PDF to reduce its size before sharing

Extract text
Pull selectable text out of PDFs, photos, screenshots, Word, Excel, PowerPoint and text files. Scanned pages and images are handled with OCR, so even a photo of a page becomes editable text you can copy or save.

Searchable OCR
Run text recognition across a scanned PDF, search inside it, jump between matches, and export a searchable PDF that any reader can index.

AI tools, on-device
- Summarize long documents
- Translate text between languages
- Detect addresses, dates, phone numbers, emails and amounts

Sign and protect
Draw or type a signature and place it on a page. Add a password to a PDF, or remove one you know, so sensitive files stay private.

Browse your files
See every document on your device in one place, sorted by type or date. Mark favourites and return to recent files from the home screen.

Built for Android
- Material Design 3 with light and dark themes
- Optional Material You colours drawn from your wallpaper

This app is supported by advertising. Documents you open, scan or edit are processed on your device and are not transmitted to us.