Chat with your PDF
Upload any PDF and ask anything. Get instant answers, summaries, and insights powered by Google Gemini AI.
Powered by Google Gemini AI
Ask in natural language
Instant summaries
Works on any PDF
PDF
🔍
Instant Search
Find any info in seconds
📝
Smart Summary
Key points extracted automatically
💬
Multi-turn Chat
Ask follow-up questions
🌍
Any Language
Works with all PDF languages
与 PDF 对话一览
提问前需要了解的要点。
- 价格
- 免费，无需注册。 每天约 20 个问题；每分钟限几次，保证大家都能快速使用。
- 支持格式
- 电子版或扫描版 PDF。 最大 5 MB，免费账户 8 MB。扫描页会先用 OCR 识别。
- 输出
- 来自你文档内容的回答。 总结、解释和要点，能确定时会标注页码，并用你提问的语言回答。
- 限制
- 约前 60,000 个字符。 大约 20 到 30 页文字；更长的 PDF 可先拆分再针对后面的部分提问。
- 适用于
- 任意浏览器，免安装。 iPhone、安卓手机、Windows、Mac、Linux 和 Chromebook。
- 隐私
- 文本会发送给 AI 模型来回答。 读取文字后立即删除文件；文本在内存中保留约 10 分钟，便于连续提问。
How to chat with a PDF
1
Upload your PDF from your device, or pull it directly from Google Drive, Dropbox, or OneDrive.
2
Wait a few seconds while we read your document. We extract the full text so the AI can answer questions about any part of it.
3
Type your question in plain language. Ask for a summary, hunt down a specific clause, pull key figures, or compare sections - anything you would normally ask a colleague.
4
Get an answer grounded in the actual content of your PDF. Follow up with as many questions as you need - the chat remembers the conversation.
5
Done? Send the PDF straight into another tool like Sign, Compress, or PDF to Word - or just close the tab. Your file auto-deletes from our servers within one hour.
Why use our Chat with PDF tool
Plain language Q&A
Ask questions the way you would ask a person - no special syntax, no keywords. The AI figures out what you mean and finds it in your PDF.
Grounded in your PDF
Answers come from the actual text of your document, not the AI's general knowledge - so you can trust what you read back.
Summarise long reports
Drop in a hundred-page contract or research paper and ask for a one-paragraph summary, a bullet list, or a section-by-section breakdown.
Find clauses and figures
Hunt down a specific sentence, paragraph, number, or term across the whole document in seconds. Far faster than Ctrl+F.
Multi-page understanding
The AI sees your whole document at once, so it can compare sections, follow references between pages, and pull facts from anywhere.
Follow-up questions
The chat keeps context. Ask a question, then drill in with 'and what about the next page?' or 'what does that mean?' just like a real conversation.
One-hour auto-delete
Your PDF is removed from our servers within one hour. Nothing lingers, nothing is reused for training. Privacy is the default.
Cloud import
Pull files from Google Drive, Dropbox, or OneDrive without a local download step.
Workflow Ready
Once you have your answers, send the PDF into Sign, Compress, PDF to Word, or any other tool straight from the chat - no re-uploading anywhere.
Free, no signup
Start chatting without an account. No watermark, no per-day cap on questions.
Frequently asked questions
怎么用 AI 免费总结 PDF？
在上方上传 PDF，然后请它总结，例如：用 5 个要点总结这份文档。之后可以针对感兴趣的部分继续追问，完全免费，无需注册。
回答只来自我的文档吗？
是的。AI 被要求只根据 PDF 内容回答，文档中没有的信息会明确说明，而不是编造；能确定时会标注页码，方便你核对原文。
可以用中文提问英文 PDF 吗？
可以。用中文提问就会得到中文回答，即使文档是英文或其他语言。需要保留排版的全文翻译，请使用 翻译 PDF。
PDF 有页数或大小限制吗？
PDF 最大 5 MB，免费账户 8 MB。AI 大约读取前 60,000 个字符，约 20 到 30 页。长篇书籍或报告可先用 拆分 PDF 分段，再针对需要的部分提问。
扫描版 PDF 也能用吗？
可以。只有图片的页面会先用 OCR 识别文字。清晰的印刷体扫描件效果最好，手写内容可能识别有误。
适合用来学习复习吗？
适合。可以让它总结章节、解释概念、列出要点，或根据你的资料出练习题。重要信息请对照它标注的页码核实。
是免费无限次使用吗？
免费使用，但有合理的使用上限：每分钟几次、每天约 20 个问题，以保证所有人都能快速使用。
我的文档会怎样处理？
为了回答问题，PDF 的文字会通过加密连接发送给第三方提供的 AI 模型。上传的文件在读取文字后立即删除，文字在内存中保留约 10 分钟，方便你连续追问。请不要上传你无权分享的文件。
