DocMaster PDF Reader & Scanner

DocMaster is a PDF reader, document scanner and file manager in one free app. Read PDF files, scan documents to PDF, convert images to PDF (JPG to PDF), merge, split and compress PDFs, and open Word, Excel and PowerPoint files — all on your phone. Your documents never leave your device. No account, no cloud sync; free and ad-supported.

FILE MANAGER
• Browse your whole device storage as one tree — sort, show hidden files, refresh
• Multi-select with breadcrumbs; copy, move, rename and delete with a paste bar
• Recents and Favorites that follow your files when you move or rename them

FIND ANY FILE
• A device-wide catalogue of your documents, built on-device
• Browse by type — PDF, Word, Excel, PowerPoint, images and more
• Fast name search across everything

PDF TOOLS
• Merge several PDFs into one
• Split or extract a page range
• Rotate, compress and add a text watermark
• Password-protect (encrypt) a PDF, or stamp a signature image
• Share and print

SCAN & OCR (on-device)
• Scan documents with the camera — edge detection, multi-page, save to PDF
• Scan ID cards
• Extract text from images with on-device OCR (Latin and Devanagari scripts)
• Select text right on the image, like a lens — long-press and drag to pick words, then copy, translate, search or share

VIEW DOCUMENTS
• Read PDFs with scroll, zoom, search, bookmarks and a thumbnail grid
• Open Word, Excel and PowerPoint content in-app (a content-accurate view of text and data, not a full layout renderer)
• View images with pinch-to-zoom

CONVERT
• Images to PDF, and PDF pages to images
• Convert and compress images
• Extract a PDF's text into a Word (.docx) file

MORE TOOLS
• QR scanner and QR code generator
• Calculator and unit converter
• Storage analyser and duplicate-file finder

YOUR DOCUMENTS STAY ON YOUR DEVICE
• Your files, scans, photos and recognised text are processed on your device and are never uploaded — no account, no cloud sync.
• OCR, document scanning and translation all run on-device.
• DocMaster is free and ad-supported: it shows ads (Google AdMob) and uses analytics (Google Analytics for Firebase) to run and improve the app. These collect usage data and an advertising ID — never your documents. See the privacy policy.

Note: DocMaster requests "All files access" so it can work as a real file manager across your whole storage. You can decline — it then falls back to the system folder picker for opening individual documents.

Recent changes:
Clearer file access: DocMaster now shows exactly which switch to turn on to list all your PDFs and documents. Fixes and improvements.