PDF AI Assistant Live

PDF AI Assistant is a complete, offline-first PDF app that combines reading, editing, conversion and an AI assistant in one place. Everything is processed locally on your device — your files are never uploaded to any server. 【EDITING】 • Page management: drag to reorder, rotate, delete, copy, or copy pages across documents • Merge multiple files, split by page ranges, extract selected pages • Compress with image downsampling, font subsetting and stream compression • Encrypt with a password, or remove existing protection • Convert images to PDF • Add text or image watermarks with adjustable size, opacity, rotation and grid layout 【ANNOTATE & SIGN】 • Highlight, underline and strikeout text • Sticky notes, text boxes, bubbles and freehand drawing • Handwritten signatures embedded directly into the PDF • Insert images anywhere on a page 【CONVERT TO PDF】 • Import Word (.docx), Markdown (.md) and HTML files in the Workspace and convert them to PDF automatically • Layout, headers, footers, footnotes and tables are preserved 【AI ASSISTANT】 • Describe a task in plain language — "add a watermark to the attached PDF", "split this document in half" — and the AI calls the right tools for you • Works with OpenAI, Claude, Gemini and custom API endpoints (including local or self-hosted models) • Vision model: configure a separate multimodal model so the AI can read page images • Privacy guardrails: reading PDF content always requires your explicit approval and can be turned off anytime • Quick prompts and smart next-step suggestions make it easy to get started 【PRIVACY & SECURITY】 • All PDF operations run locally; files are never uploaded • API keys are stored with system-level encryption, on your device only • No ads, no tracking, no personal data collected 【MORE】 • File history to quickly reopen recent documents • Dark mode and edge-to-edge display support • Available in Chinese, English, Spanish, Portuguese, German, French, Japanese, Korean, Italian and Hindi • Supports Android 5.0 and above Whether for daily work, signing contracts or organizing study materials, PDF AI Assistant helps you get it done efficiently.