DocMaster - PDF Editor & AI

DocMaster is the all-in-one PDF editor and AI document assistant built for Android — everything happens on your device. No cloud uploads. No subscriptions. No data sent to servers.

Whether you need to sign a contract, compress a scanned report, extract text from an image, or literally have a conversation with a document using AI, DocMaster does it all — even with no internet connection.

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🤖 ON-DEVICE AI DOCUMENT CHAT
• Ask questions about any PDF and get instant answers — powered by LLaMA 3.2 running entirely on your phone
• Summarize long contracts, legal documents, or reports in seconds
• Extract key facts, dates, and clauses without reading the whole document
• Your documents never leave your device — zero privacy risk

📄 COMPLETE PDF TOOLKIT
• View PDFs smoothly with zoom, scroll, and night mode
• Merge multiple PDFs into one file in seconds
• Split a PDF into individual pages or custom ranges
• Reorder pages with a simple drag-and-drop interface
• Compress PDFs to reduce file size without visible quality loss
• Lock PDFs with a password — or unlock them when you have the password

✍️ SIGN & ANNOTATE
• Draw your signature directly on screen and place it anywhere in a PDF
• Sign contracts and forms without printing a single page
• Save your signature for reuse across documents

🔍 OCR TEXT EXTRACTION
• Extract text from scanned PDFs, photos, and images
• Works on receipts, business cards, whiteboards, and handwritten notes
• Copy, share, or export extracted text instantly
• Supports multi-language recognition

🖼️ IMAGE TO PDF
• Convert JPG, PNG, and other images into a clean PDF in one tap
• Combine multiple photos into a single PDF document
• Perfect for scanning receipts, IDs, notes, and physical documents

📱 DOCUMENT SCANNER
• Use your camera to scan physical documents
• Auto-detects edges and corrects perspective automatically
• Enhances scan quality for clean, readable output

📊 WORD & EXCEL VIEWER/EDITOR
• Open and edit Microsoft Word (.docx) and Excel (.xlsx) files
• No Microsoft Office required
• Export edited documents back to their original format

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WHY DOCMASTER BEATS THE COMPETITION

Most PDF apps send your files to a remote server to process them. DocMaster does everything locally — your confidential documents, tax returns, medical records, and contracts stay on your phone.

Most AI PDF tools require a cloud subscription at $10–20/month. DocMaster includes on-device LLaMA 3.2 AI at no extra cost.

Most PDF apps are either too simple (just a viewer) or too bloated (dozens of features you never use behind a paywall). DocMaster gives you the complete professional toolkit without the subscription wall.

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PERFECT FOR:
• Professionals who sign and edit contracts on the go
• Students who want to summarize lecture notes and research papers
• Small business owners managing invoices and forms
• Anyone who values document privacy and offline access
• Developers and freelancers working with client documents

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PRIVACY FIRST
All processing — PDF editing, OCR, AI chat, compression, merging — runs 100% on your device. DocMaster does not require an account. DocMaster does not upload your files. Your documents are yours.

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DocMaster is completely free to use. An optional one-time "DocMaster Pro" upgrade is available to permanently remove all ads and support future development.

Get started free. Edit your first PDF today.