# AI tools for “Secure PDF” 717 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 | [AI Drive](https://openaitools.app/tool/ai-drive) | 10,935 | -44.4% | Freemium, Paid | AI document intelligence for legal, financial, and professional workflows | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/ai-drive.md) | | 2 | [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) | | 3 | [PortableDocs](https://openaitools.app/tool/portabledocs) | 3,823 | -15.3% | Freemium | Every PDF task in one secure suite — plus AI chat with your documents | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/portabledocs.md) | | 4 | [Mirai Translate](https://openaitools.app/tool/miraitranslate-com) | 167,767 | -20.5% | Free Trial, Contact for Pricing | Secure, high-accuracy AI machine translation for global organisations | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/miraitranslate-com.md) | | 5 | [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) | | 6 | [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) | | 7 | [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) | | 8 | [O.Translator](https://openaitools.app/tool/o-translator) | 187,449 | +6.8% | Freemium | AI document translation that keeps your original layout intact | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/o-translator.md) | | 9 | [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) | | 10 | [Dropbox Sign (HelloSign)](https://openaitools.app/tool/hellosign) | 4,339,818 | -2.2% | Free Trial, Paid, Contact for Pricing | Electronic signatures and agreement workflows built into Dropbox | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/hellosign.md) | | 11 | [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) | | 12 | [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; semantic match | [.md](https://openaitools.app/tool/wondershare-com.md) | | 13 | [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) | | 14 | [nele.ai](https://openaitools.app/tool/nele-ai) | 9,961 | -13.6% | Free Trial, Paid | Secure, GDPR-compliant AI workspace for teams | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/nele-ai.md) | | 15 | [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) | | 16 | [BestPDF](https://openaitools.app/tool/bestpdf) | 288 | -83.9% | Free | Free browser-based PDF editor, converter, and translator with AI helpers built in. | category: ai-pdf; keywords 100%; semantic match | [.md](https://openaitools.app/tool/bestpdf.md) | | 17 | [Instafill.ai](https://openaitools.app/tool/instafill) | 35,630 | -36.6% | Free Trial, Paid, Contact for Pricing | AI that fills your PDF and Word forms for you | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/instafill.md) | | 18 | [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) | | 19 | [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) | | 20 | [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) | | 21 | [Muse](https://openaitools.app/tool/muse-ai-1) | 45,751,822 | +228.3% | Contact for Pricing | Your personal AI agent from Meta that actually gets things done | keywords 60% | [.md](https://openaitools.app/tool/muse-ai-1.md) | | 22 | [PDF.co](https://openaitools.app/tool/pdf-co) | 78,590 | -8.2% | Free Trial, Paid | REST API to convert, edit and extract data from PDFs | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/pdf-co.md) | | 23 | [ToolKK](https://openaitools.app/tool/toolkk) | 376,133 | +100.6% | Freemium | A searchable online toolbox for PDF, media, SEO, and everyday tasks | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/toolkk.md) | | 24 | [Recastia](https://openaitools.app/tool/recastia) | 137,539 | -17.5% | Freemium | One document, many AI-generated formats | category: ai-pdf; semantic match | [.md](https://openaitools.app/tool/recastia.md) | Page 1 of 30 · [Next page →](https://openaitools.app/index.md?q=Secure+PDF&page=2) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=Secure%20PDF More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)