LightPDF
AI-powered online PDF editor — edit, convert, OCR, sign, and chat with your documents across all devices.
| What is it | AI-powered online PDF editor — edit, convert, OCR, sign, and chat with your documents across all devices. |
|---|---|
| Pricing | Freemium — from $9.9/mo |
| Free tier | Yes |
| Platform | Web Application |
| API | Yes |
| Best for | editing and annotating PDF documents, converting documents between formats |
| Domain registered | 2013 |
Data updated Aug. 1, 2026
What does LightPDF do?
LightPDF is a comprehensive online toolkit that handles virtually everything you'd want to do with PDF files. It lets you edit text and images directly in PDFs (much like a word processor), convert files to and from various formats (Word, Excel, images), perform OCR to extract text from scanned documents, add digital signatures, annotate with comments, and even compress or merge files. What sets it apart is its AI integration: the 'ChatPDF' feature allows you to upload documents and ask an AI questions about the content, getting summaries, explanations, or specific information extracted instantly. It's also fully cross-platform, with web, desktop, and mobile apps that sync your documents through cloud storage.
The tool stands out by packing these features into a clean, accessible interface that works right in your browser, eliminating the need for expensive desktop software. The AI chat function is particularly clever for quickly digesting long reports or contracts. While some advanced features might require the desktop app, the core online tools are free to use, making it practical for everyday tasks.
This is ideal for students, office workers, and anyone who regularly deals with documents. Students can use the OCR to digitize textbook excerpts and the AI to summarize research papers. Professionals can edit contracts, add e-signatures to forms, or quickly extract data from PDF reports. It's essentially for anyone who's ever thought, 'I wish I could just edit this PDF instead of starting over.'
Key features
What makes it stand outWho is LightPDF for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardMonthly Plan
- 1,000 AI credits
- 1 validity months
- 1-month full access to all PDF tools
- 1000 AI credits, 1-month validity
- Chat, summarize, analyze, and ask PDFs
- Remove watermarks from PDFs & images
- Generate PDFs with simple prompts
- Turn ideas into presentations
- Create mindmaps from docs/text/URLs
- Translate PDFs in 20+ languages
Annual Plan
- 1 validity months
- 1,000 AI credits per month
- 1-year full access to all PDF tools
- 1000 AI credits/month, 1-month validity
- Chat, summarize, analyze, and ask PDFs
- Remove watermarks from PDFs & images
- Generate PDFs with simple prompts
- Turn ideas into presentations
- Create mindmaps from docs/text/URLs
- Translate PDFs in 20+ languages
Perpetual Plan
- 40,000 AI credits
- Lifetime access to all PDF tools
- 40000 credits received instantly
- Chat, summarize, analyze, and ask PDFs
- Remove watermarks from PDFs & images
- Generate PDFs with simple prompts
- Turn ideas into presentations
- Create mindmaps from docs/text/URLs
- Translate PDFs in 20+ languages
Pay-As-You-Go
- Low-cost way to try it out
- One-time purchase, lifetime validity
Trust & presence
Gallery
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