AlphaMoatによると、2026-09時点でChrome拡張機能AI PDF Annotatorのユーザー数は22(前月比 +22.2%)で、9,324件のAIブラウザ拡張機能中7,192位、オフィス・コラボレーションでは1,839件中1,421位です。
AI PDF Annotatorとは
Read PDFs with AI. Select text or screenshot to ask questions. Supports OpenAI, Claude, Ollama and custom providers. AI PDF Annotator — Smart PDF Reader with AI-Powered Annotations
Read, annotate, and understand PDFs with the help of AI. Select any text or take a screenshot, ask a question, and get instant AI explanations right on your document.
🔹 Core Features:
- Text Selection Q&A — Select text in PDF, click "Ask", get AI explanation instantly
- Screenshot Q&A — Capture any area (diagrams, formulas, charts) and ask AI to explain
- Capture Pages — Render multiple pages as a single image for AI analysis
- Persistent Annotations — All Q&A pairs are saved per PDF, restored on reload
- Follow-up Questions — Continue asking within each annotation's context
- Smart Context — Only sends first + last conversation turn to save API tokens
- 4 Themes — Dark, Light, Sepia, Green
🔹 AI Providers:
- OpenAI API (GPT-4o, GPT-4.1, o4-mini)
- Claude API (Sonnet 4, Haiku 4.5)
- Ollama (local models — llama, qwen, deepseek, etc.)
- Custom endpoint (LM Studio, vLLM, or any OpenAI-compatible API)
ストアの説明の続きを表示▾
🔹 Privacy-First:
- Your API keys are stored locally, never sent to any third-party server
- All data stays in your browser (chrome.storage)
- No analytics, no tracking, no ads
- CORS handled automatically for local AI servers — no manual configuration needed
🔹 How It Works: 1. Open any PDF (online or local file) 2. The extension automatically opens it in the built-in reader 3. Select text → click "Ask" → AI explains it in the sidebar 4. Or use Screenshot/Capture Pages for images, diagrams, formulas 5. All annotations are saved and can be revisited anytime
Bring your own API key. Supports both cloud AI (OpenAI, Claude) and fully offline local models (Ollama). Your documents and conversations never leave your device.
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AI PDF 智能标注 — AI驱动的PDF阅读与标注工具
选中文字或截图，一键向AI提问，答案直接标注在PDF上。
主要功能：
- 选中文字提问，AI即时解释
- 截图提问，支持图表、公式、流程图
- 多页捕获，生成长图发送给AI分析
- 标注自动保存，刷新后恢复
- 每个标注独立上下文，支持追问
- 智能省token策略，节省API费用
- 4种阅读主题
支持的AI服务：OpenAI、Claude、Ollama本地模型、自定义API端点
隐私优先：API密钥本地存储，数据不出浏览器，无追踪无广告。
拡張機能の情報
ユーザー数の推移
オフィス・コラボレーションの人気拡張機能
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データ月:2026-09 · ユーザー数と評価はChromeウェブストアの公開データを月単位で集計したものです。詳しくはデータの方法論をご覧ください。