# AI tools for “PDF Highlighting” 890 matching tools; showing 24, ranked by relevance. Related categories: [ai-pdf](https://openaitools.app/category/ai-pdf.md) | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | A free, AI-powered PDF editor for every device | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/pdfgear.md) | | 2 | [Glasp](https://openaitools.app/tool/glasp) | 889,564 | -14.1% | Freemium | Highlight the web, learn in public, and build your AI clone | keywords 100%; semantic match | [.md](https://openaitools.app/tool/glasp.md) | | 3 | [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 | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/chatpdf.md) | | 4 | [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 | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/updf-ai.md) | | 5 | [Audeus: Text to Speech Reader](https://openaitools.app/tool/audeus-text-to-speech-reader) | 32,118 | -37.8% | Freemium, Free Trial | Turn PDFs, docs and web pages into natural-sounding audio you can listen to anywhere | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/audeus-text-to-speech-reader.md) | | 6 | [LightPDF](https://openaitools.app/tool/lightpdf-com) | 1,742,568 | -15.3% | Freemium | Free AI-powered PDF editor, converter and reader for every device | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/lightpdf-com.md) | | 7 | [Readio](https://openaitools.app/tool/readio-1) | 12,402 | +6.7% | Freemium | Listen to PDFs, ebooks, and webpages in natural AI voices with synced highlighting. | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/readio-1.md) | | 8 | [Adobe Firefly](https://openaitools.app/tool/adobe) | 396,998,213 | -8.6% | Freemium | Commercially safe generative AI workspace for images, video, audio, vectors, and multi-model creative production. | category: ai-pdf | [.md](https://openaitools.app/tool/adobe.md) | | 9 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Chat with any PDF and get cited answers instantly | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/pdf-ai.md) | | 10 | [Blinkist](https://openaitools.app/tool/blinkist) | 1,633,056 | +19.3% | Freemium, Free Trial, Paid | Bite-sized book and podcast insights you can finish in 15 minutes | keywords 100%; semantic match | [.md](https://openaitools.app/tool/blinkist.md) | | 11 | [AskYourPDF](https://openaitools.app/tool/askyourpdf) | 127,733 | +14.1% | Freemium | Chat with any PDF and add an AI chatbot trained on your own content | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/askyourpdf.md) | | 12 | [Goodnotes](https://openaitools.app/tool/goodnotes) | 3,227,341 | +10.8% | Freemium, Free Trial | Handwritten notes, PDF markup, and AI study tools on one canvas | semantic match | [.md](https://openaitools.app/tool/goodnotes.md) | | 13 | [Tenorshare AI Chat PDF Tool](https://openaitools.app/tool/tenorshare-ai-chat-pdf-tool) | 90,781 | +30.4% | Freemium | Chat with PDFs, summarize documents and draft content in one AI workspace | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/tenorshare-ai-chat-pdf-tool.md) | | 14 | [CastReader](https://openaitools.app/tool/castreader) | 55,999 | +9.8% | Freemium | Read aloud webpages, PDFs, Kindle books and AI answers with synced highlighting | keywords 100%; semantic match | [.md](https://openaitools.app/tool/castreader.md) | | 15 | [PDF GPT](https://openaitools.app/tool/pdf-gpt) | 1,507 | -7% | Freemium | Chat with your PDFs — summaries, citations and multi-document search in seconds | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/pdf-gpt.md) | | 16 | [pdf.net](https://openaitools.app/tool/pdf-net) | 1,257,131 | -22.3% | Freemium, Free | All-in-one online PDF editor with AI helpers for reading, summarizing, and generating documents | semantic match | [.md](https://openaitools.app/tool/pdf-net.md) | | 17 | [Read PDF Aloud](https://openaitools.app/tool/read-pdf-aloud) | 88,455 | -21.4% | Freemium | Turn any PDF into natural AI speech and listen anywhere. | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/read-pdf-aloud.md) | | 18 | [Mathpix](https://openaitools.app/tool/mathpix) | 257,060 | -6.9% | Freemium, Paid, Contact for Pricing | AI document conversion for math, chemistry, tables and full PDFs | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/mathpix.md) | | 19 | [Wondershare](https://openaitools.app/tool/wondershare-com) | 6,646,794 | -3.6% | Freemium, Free Trial, Paid | An AI-powered creative and productivity suite spanning video, documents, diagrams and data | category: ai-pdf | [.md](https://openaitools.app/tool/wondershare-com.md) | | 20 | [GoPDF](https://openaitools.app/tool/gopdf) | 32,069 | +0.3% | Freemium | An all-in-one online PDF editor with AI chat, quizzes and invoicing | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/gopdf.md) | | 21 | [AI PDF Summarizer by PDF Guru](https://openaitools.app/tool/ai-pdf-summarizer-by-pdf-guru) | 6,881,465 | -32% | Freemium, Free Trial | Turn long PDFs into clear summaries and chat with your documents | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/ai-pdf-summarizer-by-pdf-guru.md) | | 22 | [Image to Text](https://openaitools.app/tool/image-to-text-converter) | 4,871,767 | +0.8% | Freemium | Free online OCR that turns any image into editable text in seconds | category: ai-pdf | [.md](https://openaitools.app/tool/image-to-text-converter.md) | | 23 | [PDNob PDF Editor](https://openaitools.app/tool/pdnob-pdf-editor) | 2,376,518 | +1.2% | Freemium, Free Trial, Paid | AI-powered PDF editor for Windows, Mac and iOS | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/pdnob-pdf-editor.md) | | 24 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | AI research platform for reading, understanding and writing scientific papers | category: ai-pdf | [.md](https://openaitools.app/tool/scispace.md) | Page 1 of 38 · [Next page →](https://openaitools.app/index.md?q=PDF+Highlighting&page=2) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=PDF%20Highlighting More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)