# LightPDF vs PDF GPT LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. PDF GPT records 1,507 monthly visits with -7% growth and Freemium pricing. | Metric | [LightPDF](https://openaitools.app/tool/lightpdf-com) | [PDF GPT](https://openaitools.app/tool/pdf-gpt) | | :--- | :--- | :--- | | Website URL | https://lightpdf.com | https://www.pdfgpt.chat | | Categories | AI PDF Editor, AI PDF, AI PDF Summarizer, AI OCR | AI Chatbot, AI PDF, AI PDF Summarizer, AI Search Engine | | Pricing Model | Freemium | Freemium | | Monthly Visits | 1,742,568 | 1,507 | | MoM Growth Rate | -15.3% | -7% | | Primary Market | India | Thailand | | Direct Visits | 442,074 | 616 | | Review Score | 4.2 | 3.8 | | Saved Count | 8 | 11 | | Supported Platforms | Website | Website | ## LightPDF LightPDF positions itself as an all-in-one document workspace rather than a single-purpose converter. The classic side of the product covers the essentials most people need every day: viewing and editing PDF text and images, converting between PDF and Office/image formats, OCR for scanned files, merging, splitting, compressing, watermarking, signing and annotating. Because everything runs in the browser with companion apps for Windows, Mac, iOS and Android, the same account and files travel with you across devices. The AI layer is where the product has expanded most. An AI agent lets you chat with an uploaded document, ask follow-up questions and trace answers back to citations, while a separate chat experience works on YouTube videos. Document translation preserves the original layout across 20+ languages, including scanned and image-based PDFs, and structured data extraction turns invoices, receipts, bank statements and purchase orders into editable spreadsheets. Rounding out the suite are an AI PPT generator, mind-map and summary generation, watermark and sticker removal, text and logo erasing, document enhancement for scanned pages and an AI invoice generator. Pricing follows a freemium model with a free tier (10MB file limit, watermark on some exports) and paid plans that add unlimited file sizes, batch processing, cloud storage and monthly AI credits. Individual subscriptions start around $5.99 per month, with a yearly option near $15.99 and a one-time lifetime plan; credits are consumed per AI action, so heavy AI users can top them up. Team, business and education plans are available on request. **Pricing & Plans:** Freemium. A free plan covers basic PDF tools with a 10MB file cap; paid plans start around $5.99/month, with a yearly tier and a one-time lifetime option. AI features consume monthly credits that differ by plan. - **AI document agent and chat:** Upload a PDF and ask questions in natural language, follow up on details and see which passages the answers came from. A separate chat mode works with YouTube videos. - **Layout-preserving translation:** Translate whole documents, including scanned and image-based PDFs, into 20+ languages while keeping the original formatting and layout intact. - **AI data extraction to spreadsheets:** Convert invoices, receipts, bank statements and purchase orders into structured, editable Excel files automatically. - **Full PDF editing and conversion suite:** Edit text and images, OCR scanned pages, convert to and from Office formats, then merge, split, compress, watermark, sign and annotate. - **Cross-platform access:** One account works on web, Windows, Mac, iOS and Android, so documents and paid features follow you between devices. **Strengths:** Very broad toolkit that covers both everyday PDF chores and advanced AI document tasks; Free tier is usable for light jobs, and the paid plans are cheaper than many competing PDF editors; Layout-preserving translation and AI data extraction handle scanned documents that trip up simpler tools; One subscription covers five platforms, including desktop and mobile apps **Limitations:** Free plan caps files at 10MB and adds watermarks on some outputs; AI features run on a credit system, so heavy usage means top-ups or a higher tier; Advanced AI operations like text editing or logo removal consume credits quickly [Profile (Markdown)](https://openaitools.app/tool/lightpdf-com.md) ## PDF GPT PDF GPT turns document reading into a conversation. You upload PDFs, ask whatever you need to know — a specific figure, a definition, the gist of a chapter — and the assistant responds using only the contents of your documents. The distinguishing feature is citation: each answer is backed by a clickable reference to the page it came from, with the relevant passage highlighted, so you can verify claims instead of trusting the model. Search works across multiple uploaded documents, which is what makes it practical for literature reviews, contract comparisons and multi-file research. Beyond question answering, the site positions the tool for generating study material: summaries, study guides and presentation outlines built from the source PDF. Translations are supported across more than 90 languages, which helps when the source document is not in your working language. Organisation features include tagging documents and then chatting with groups defined by those tags, keeping separate projects from bleeding into each other. The site states it is trusted by over 500,000 researchers and professionals and offers a free entry point, with 'Try for Free' as the primary call to action on the homepage. The product is operated by Pearl Labs. Because a free tier is advertised but published price tiers are not shown on the homepage, check the signup or pricing flow for the exact limits on file size, document count and advanced features before relying on it for large workloads. **Pricing & Plans:** The site advertises a free way to start via 'Try for Free'. Detailed paid tiers are not published on the homepage, so verify current limits and pricing during signup. - **Cited answers with page references:** Every response links back to the page it came from and highlights the supporting passage, so you can check the evidence rather than take the answer on trust. - **Summarise long documents:** Generate instant summaries of lengthy PDFs to decide what deserves a close read and what you can skim. - **Search across multiple PDFs:** Upload several documents and query them together, finding a specific detail without opening files one by one. - **Tag and organise documents:** Apply tags to PDFs and then chat with a group defined by a tag, keeping distinct projects separated. - **Translation across 90+ languages:** Read and work with source documents in other languages, with output aimed at your working language. **Strengths:** Answers include clickable page citations and highlighted passages; Handles multiple PDFs in one chat, not just single files; Summarisation, translation and study-material generation in the same tool; Tagging keeps separate research projects organised **Limitations:** Detailed paid pricing and usage limits are not published on the homepage; Answer quality still depends on how text-searchable the PDF is; Scanned or image-only PDFs may need OCR before they work well [Profile (Markdown)](https://openaitools.app/tool/pdf-gpt.md) ## Frequently Asked Questions ### How do LightPDF and PDF GPT compare in monthly traffic? LightPDF has 1,742,568 monthly visits, while PDF GPT has 1,507. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? LightPDF has a month-over-month growth rate of -15.3%; PDF GPT has -7%. ### How does pricing compare? LightPDF: Freemium. Freemium. A free plan covers basic PDF tools with a 10MB file cap; paid plans start around $5.99/month, with a yearly tier and a one-time lifetime option. AI features consume monthly credits that differ by plan. PDF GPT: Freemium. The site advertises a free way to start via 'Try for Free'. Detailed paid tiers are not published on the homepage, so verify current limits and pricing during signup. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) | | 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) | | 3 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages. | [.md](https://openaitools.app/tool/deepl.md) | | 4 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | AI research platform for reading, understanding and writing scientific papers | [.md](https://openaitools.app/tool/scispace.md) | | 5 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | A free, AI-powered PDF editor for every device | [.md](https://openaitools.app/tool/pdfgear.md) | | 6 | [PDNob PDF Editor](https://openaitools.app/tool/pdnob-pdf-editor) | 2,376,518 | +1.2% | Freemium, Free Trial, Paid | Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms. | [.md](https://openaitools.app/tool/pdnob-pdf-editor.md) | | 7 | [pdf.net](https://openaitools.app/tool/pdf-net) | 1,257,131 | -22.3% | Freemium, Free | Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant. | [.md](https://openaitools.app/tool/pdf-net.md) | | 8 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents | [.md](https://openaitools.app/tool/updf-ai.md) | | 9 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Chat with any PDF, video, or website and get cited answers in seconds | [.md](https://openaitools.app/tool/chatpdf.md) | | 10 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Chat with any PDF and get cited answers instantly | [.md](https://openaitools.app/tool/pdf-ai.md) | --- Source: https://openaitools.app/compare/lightpdf-com-vs-pdf-gpt More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)