PDF Guru
Officially listedPDF Guru is a browser-based PDF management platform combining AI document chat and summarization with full editing, conversion, and OCR tools.
PDF Guru
PDF Guru is a fully browser-based PDF document management platform usable without any download or installation. Developed by Cyprus-based LOPOFIST LIMITED, it has served more than 15 million users worldwide. Its core selling point is combining AI chat summarization with a full suite of PDF editing features in one web tool, breaking down the usage barrier of traditional desktop software.
Core Capabilities
- AI Document Summaries: Certified by multiple independent reviews as "one of the best AI chat tools," extracting key information from long documents in seconds, with follow-up conversational Q&A
- All-Format Conversion: Converts between 25+ file formats (PDF ↔ Word/Excel/PPT/JPG/DWG/EPUB and more), solving format compatibility in one place
- Online Editing: Modify text and images and add annotations directly, with no desktop software to download
- Document Organization: A complete toolkit of merge, split, rotate, compress, OCR recognition, and e-signature
- Cross-Platform Experience: True zero installation, supporting Windows/Mac/Linux/iOS/Android and all mainstream platforms
Who It's For Academic researchers summarizing large numbers of papers, business professionals processing long business reports, students extracting textbook key points, and cross-device workers who need a use-and-go cloud solution. If your main need is "understanding documents" rather than "heavy editing," this tool's AI capabilities deliver a significant efficiency boost.
Unique Advantages Its AI chat capability is recognized by professional reviews such as Skywork as industry-leading — accurately understanding business reports and research papers with almost no hallucination issues. Where ChatPDF only does Q&A, Adobe is overly complex, and Smallpdf lacks AI, PDF Guru strikes the balance of "AI intelligence + basic editing."
Editor's Review The technical capability is genuinely excellent, but beware the subscription model: the $0.99 trial auto-converts to $49.99/month, and among 54,000+ Trustpilot reviews many users complain of "subscription traps" and cancellation difficulty. Set a calendar reminder to cancel 24 hours before the trial ends, or use a virtual credit card to manage payment. If you can strictly manage the subscription cycle, its AI summarization is worth experiencing; if subscription disputes worry you, UPDF (one-time buyout) or Smallpdf (free tier) are safer choices.
Pricing
### 💰 定价模式：付费订阅（试用后自动续费） **起步价**：$0.99（7天试用） #### 主要方案 - **7天限制访问试用**：$0.99 - 试用期后自动转为 $49.99/月 - **7天完整访问试用**：$1.99 - 解锁所有功能，试用期后自动转为 $49.99/月 - **月度订阅**：$49.99/月 - 完整访问所有功能，自动续费 - **年度订阅**：$299.99/年 - 相当于 $24.95/月，自动续费 #### 试用/其他信息 所有试用方案均默认自动续费，需在试用结束前至少 24 小时手动取消。提供 30 天退款保证，但需联系客服且有技术问题限制条件。**重要提示**：平台没有独立定价页面（pdfguru.com/pricing 返回 404），定价信息散布在结账流程和 FAQ 中。
FAQ
Is PDF Guru free?
Not completely. It offers $0.99/7-day or $1.99/7-day trial plans, which auto-convert to a $49.99/month subscription afterward. Cancel manually at least 24 hours before the trial ends to avoid being charged.
What can PDF Guru be used for?
Core features include AI document summarization and chat, PDF editing, conversion across 25+ formats, document merge and split, compression optimization, OCR recognition, e-signatures, and password protection — a full PDF management suite.
Is PDF Guru's AI summarization accurate?
According to professional reviews such as Skywork AI, PDF Guru is certified as "one of the best AI chat tools." It accurately understands business reports and research papers, supports follow-up conversational questioning, and has virtually no hallucination issues.
How does PDF Guru differ from Adobe Acrobat?
PDF Guru is a pure web tool with stronger AI chat ability and a lower learning cost; Adobe is more comprehensive (batch processing, enterprise security) but similarly priced with a steep learning curve.
How do I cancel a PDF Guru subscription?
Cancel at least 24 hours before the trial ends via account settings or by contacting customer service. Many users report the cancellation process is not clear enough, so set a calendar reminder in advance to avoid automatic charges.
Which file formats does PDF Guru support for conversion?
It supports conversion among 25+ formats, including common Word/Excel/PPT/JPG/PNG plus niche formats like DWG (CAD), EPUB/MOBI (ebooks), TIFF, and HTML.
Is PDF Guru suitable for academic research?
Very much so. AI summaries quickly extract key information from long papers, and conversational questioning digs into details; academic researchers report significantly improved efficiency. Just manage the trial period carefully.
Is my data safe with PDF Guru?
It claims to use end-to-end encryption to protect data transmission and automatically deletes files after processing. But as a cloud tool, upload highly sensitive documents cautiously; no independent third-party security audit report has been found.