# LightPDF vs Readable LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. Readable records 67,606 monthly visits with -0.1% growth and Free Trial, Paid, Contact for Pricing pricing. | Metric | [LightPDF](https://openaitools.app/tool/lightpdf-com) | [Readable](https://openaitools.app/tool/readable-jp) | | :--- | :--- | :--- | | Website URL | https://lightpdf.com | https://readable.jp | | Categories | AI PDF Editor, AI PDF, AI PDF Summarizer, AI OCR | AI Translate, AI PDF, AI Reader, AI Documents Generator | | Pricing Model | Freemium | Free Trial, Paid, Contact for Pricing | | Monthly Visits | 1,742,568 | 67,606 | | MoM Growth Rate | -15.3% | -0.1% | | Primary Market | India | Japan | | Direct Visits | 442,074 | 32,642 | | Review Score | 4.2 | 4.3 | | Saved Count | 8 | 4 | | 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) ## Readable Readable is a Japanese AI translation service focused specifically on PDFs. Rather than exporting text and losing the document's structure, it translates the file as a document: tables, images and diagrams keep their original positions, so academic papers, reports and manuals remain readable and do not need to be rebuilt by hand. This is the feature the product leads with, and it is the main reason teams use it instead of a generic text translator. The service is designed for heavy documents. Pro Premium and Business plans translate files up to 1,000 pages and 200 MB in one pass, while the entry Pro Standard plan covers up to 100 pages and 50 MB. Translations are unlimited on a flat monthly fee and finished files can be downloaded as often as needed. A glossary function lets you pin down how product names, abbreviations and research terminology are rendered, which keeps wording consistent when several people review the same set of documents. Online files can also be translated through a Chrome extension. Readable supports more than 200 source languages into Japanese, with the Pro Standard plan focused on English-to-Japanese and Pro Premium opening up the full language range. You can choose between the service's own engine and a ChatGPT-based translation engine depending on the document, and the site notes that a separate paid DeepL subscription is not required. Plans start at 800 yen per month, a 7-day free trial is offered, and a Business/Kakenhi option with quotes and invoicing is available for organisations — security reviews and supporting documentation are handled as a separate paid service. **Pricing & Plans:** Pro Standard is 800 yen per month (English-to-Japanese, up to 100 pages/50 MB per file) and Pro Premium is 4,000 yen per month (200+ languages, up to 1,000 pages/200 MB), both unlimited in translation count. A Business/Kakenhi plan is quoted on request for teams and invoicing needs, and there is a 7-day free trial limited to one use per person or company. - **Layout-preserving translation:** Tables, figures and diagrams stay where they were, so context and data structure survive translation and you can share the result as-is. - **Large-file capacity:** Pro Premium and Business plans accept a single file of up to 1,000 pages and 200 MB, so long reports and manuals do not need splitting. - **Custom dictionary:** Register your own glossary so product names, abbreviations and internal terminology always come out with the same wording. - **Unlimited translations:** Translate and download as often as you like on a flat monthly plan, and work with online files directly through the Chrome extension. - **Selectable AI engines:** Choose between Readable's own engine and a ChatGPT-based engine depending on the document, without paying separately for a translation subscription. **Strengths:** Keeps original PDF layout, so no manual rebuild of tables or diagrams; Unlimited translations on a flat monthly fee from 800 yen; Glossary registration keeps terminology consistent across a document set; Handles very large files (up to 1,000 pages / 200 MB on higher plans) [Profile (Markdown)](https://openaitools.app/tool/readable-jp.md) ## Frequently Asked Questions ### How do LightPDF and Readable compare in monthly traffic? LightPDF has 1,742,568 monthly visits, while Readable has 67,606. 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%; Readable has -0.1%. ### 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. Readable: Free Trial, Paid, Contact for Pricing. Pro Standard is 800 yen per month (English-to-Japanese, up to 100 pages/50 MB per file) and Pro Premium is 4,000 yen per month (200+ languages, up to 1,000 pages/200 MB), both unlimited in translation count. A Business/Kakenhi plan is quoted on request for teams and invoicing needs, and there is a 7-day free trial limited to one use per person or company. ## 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 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features. | [.md](https://openaitools.app/tool/pdfgear.md) | | 5 | [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) | | 6 | [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) | | 7 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features. | [.md](https://openaitools.app/tool/updf-ai.md) | | 8 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities. | [.md](https://openaitools.app/tool/chatpdf.md) | | 9 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Excels at developer API integration and chatting with PDFs, but lacks comprehensive traditional PDF editing tools. | [.md](https://openaitools.app/tool/pdf-ai.md) | | 10 | [BelinDoc](https://openaitools.app/tool/belindoc) | 262,525 | -1.4% | Freemium, Contact for Pricing | Free AI document translation that keeps your original layout intact | [.md](https://openaitools.app/tool/belindoc.md) | --- Source: https://openaitools.app/compare/lightpdf-com-vs-readable-jp More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)