
ChatPDF
ChatGPT
Docalysis
Sharly AI
PDF.ai
Humata AI
ChatWithDocs.co
Chat with documents.

PDFShift
pdflayer
PDFCrowd
DocRaptor
HTML PDF API
Doczilla
ezPDF.dev
Generate, process, and sign documents with a single API.

Which is more popular?
Based on our record, ChatDOC should be more popular than PDFGate. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | chatdoc.com | pdfgate.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of ChatDOC yet.
PDFGate is a developer-first platform for generating PDFs, sending documents for signature, and managing document workflows. Convert HTML to PDFs, create fillable documents, and automate processing tasks like data extraction, watermarking, and encryption — all through a simple and scalable API.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of PDFGate yet.
Walkthroughs and reviews on video.
ChatDOC Chat with your documents 23 March 2023
More videos
No PDFGate videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing ChatDOC and PDFGate.
PDFGate's answer:
PDFGate covers the whole document workflow in one API. You can generate PDFs from HTML or URLs, add and fill native form fields, extract form data, and send documents for digital signature without stitching several vendors together.
PDFGate's answer:
Most HTML to PDF APIs stop once the PDF is rendered. PDFGate goes further, with fillable form fields, flattening, watermarking, password protection, compression and signing envelopes with webhooks. It also ships an MCP server, so AI agents can generate and manage PDFs directly.
PDFGate's answer:
Developers and SaaS teams that generate invoices, contracts, reports and forms from their own backend, and businesses that need those documents filled and signed.
PDFGate's answer:
PDFGate’s REST API is built with Node.js and NestJS, which handle document generation, form fields and webhooks. Digital signing runs as a separate Java service, chosen for its mature cryptography and PDF signing libraries. The platform is hosted on AWS. Developers can integrate through the REST API or through the PDFGate MCP server, which lets AI agents work with PDFs directly.
Share your experience with using ChatDOC and PDFGate. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I search an alternative to ChatDoc with an available API. I want to make an app where the user can upload a PDF and ask question about it. Source: about 3 years ago
I want to try this, but it's stuck at processing, showing 100% but not usable. I‘ve tried a lot of chat-with-pdf apps, including ChatDOC, ChatPDF, Humata and others. For serious paper reading, I must say that... - Source: Hacker News / over 3 years ago
Try ChatDoc: https://chatdoc.com/ I think it might be just what you're looking for. Source: over 3 years ago
Hey there, I’m the founder of [PDFGate](https://pdfgate.com), an API that converts HTML into PDFs with support for fillable forms, encryption, and digital signatures. Like many here, I’ve run into the same frustration: most HTML to PDF... - Source: Hacker News / about 1 year ago
When comparing ChatDOC and PDFGate, you can also consider the following products.

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Free, powerful HTML to PDF API supporting both URL and raw HTML conversion. Unlimited document size, lightning-fast and compatible PHP, Python, Ruby, etc.
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Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.
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