SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
PDFgear records 2,845,280 monthly visits with -3.4% month-over-month growth and Free pricing. Thinkstack.ai records 917 monthly visits with -47.4% growth and Freemium pricing.

Build custom AI chatbots and agents trained on your own data
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | pdfgear.com | app.thinkstack.ai |
| Pricing Model | Free | Freemium |
| Monthly Visits | 2.85M (2,845,280) | 917 (917) |
| MoM Traffic Delta | -100.48K (-3.4%) | -828 (-47.4%) |
| Primary Market & Share | 🇺🇸 United States (23.3%) | 🇺🇸 United States (48.2%) |
| Direct Visits / mo | 675.08K | 367 |
| User Rating | 4.5 | 4.1 |
| Supported Platforms | Website | Website |
A free, AI-powered PDF editor for every device
Edit text, images, shapes, links, signatures and form fields in a document as easily as in a word processor.
Chat with a PDF, generate summaries and extract answers or text from long and awkwardly laid-out documents.
Convert between PDF, Word, Excel, PowerPoint, TXT and images, including batch conversion with lossless output.
Turn scanned or image-based documents into fully editable Word or TXT files.

Build custom AI chatbots and agents trained on your own data
Create fully functional AI agents in seconds from a visual, no-code interface without engineering help.
Connect multiple data sources so the bot answers from your own documents, help content, and websites.
Automate customer actions and build autonomous systems that require minimal human oversight.
Move complex chats to live agents and collect structured data through chat-based forms.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
An AI-powered creative and productivity suite spanning video, documents, diagrams and data
An AI-powered creative and productivity suite spanning video, documents, diagrams and data
Desktop document suite providing advanced editing, OCR conversion, and AI-powered chat assistance for local files.
Desktop document suite providing advanced editing, OCR conversion, and AI-powered chat assistance for local files.

Cloud-based document platform offering robust PDF editing, format conversion, and interactive AI chat features.
Cloud-based document platform offering robust PDF editing, format conversion, and interactive AI chat features.

Browser-based PDF workspace combining document conversion, e-signatures, and automated AI summarization tools.
Browser-based PDF workspace combining document conversion, e-signatures, and automated AI summarization tools.

Feature-rich cross-platform PDF editor with integrated GPT capabilities for deep document summarization and analysis.
SpecialistLightweight conversational platform designed specifically for fast, effortless Q&A and summarization across uploaded PDF documents.

AI customer service that answers instantly and turns chats into revenue
AI customer service that answers instantly and turns chats into revenue

Custom AI agents trained on your documentation and knowledge base
Custom AI agents trained on your documentation and knowledge base
SpecialistFocused document intelligence tool providing precise Q&A, summarization, and developer APIs for chatting with PDFs.

Free browser-based PDF toolkit with AI OCR and chat

Custom AI support chatbots trained on your own website content
Custom AI support chatbots trained on your own website content