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

SEMRush
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SE Ranking
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Surfer SEO
Serpstat is the Swiss army knife for automating SEO processes. With a suite of powerful modules, you can track your performance, analyze your competitors, research keywords and backlinks, audit your website, and so much more.

Which is more popular?
Based on our record, Serpstat should be more popular than PDFGate. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | pdfgate.com | serpstat.com |
| Pricing | ||
| Platforms | — | |
| Company | 2024 | Startup from Ukraine · 50 - 99 employees · 2015 |
| Listed in |
In their own words, as submitted to SaaSHub.


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.
Dive deep into keyword research with Serpstat's keyword database, now bigger than ever with global coverage across 230 regions. Uncover the most valuable keywords for your business, understand search intent, and optimize your content strategy
What each product offers, as listed by its team.


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


No analysis of PDFGate yet.
Overall verdict
Why this product is good
Recommended for
Serpstat is recommended for digital marketers, SEO professionals, content creators, and businesses of all sizes looking for a comprehensive yet affordable SEO tool to enhance their online presence and gain insights into their competitors.
Walkthroughs and reviews on video.
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What is Serpstat?
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing PDFGate and Serpstat.
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.
Serpstat's answer:
The AI-powered features for content optimization and generation are particularly noteworthy, as they go beyond traditional SEO tools to assist with content creation and enhancement.
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.
Serpstat's answer:
With its focus on AI and continuous innovation, choosing Serpstat positions users to take advantage of emerging trends in digital marketing.
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.
Serpstat's answer:
Serpstat's primary audience includes digital marketers, agencies, in-house marketing teams, freelancers, content creators, and businesses looking to improve online visibility.
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 PDFGate and Serpstat. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of PDFGate yet. Be the first one to post
Serpstat is an affordable SEO tool with a one-week free trial. The only difference is that, unlike Moz, Serpstat doesn’t have a free version, so you’ll need to pick a paid plan once the trial is over.
Serpstat offers a balanced approach to SEO, blending competitive analysis with a user-friendly interface, making it suitable for users who want to combine keyword research with site audits and content strategies. Its...
Serpstat provides advanced tools for users looking to perform detailed SEO analysis and competitor research. Its extensive features make it ideal for those who need comprehensive insights into their website’s...
Recommendations tracked on public social media and blogs since March 2021.


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
SERPstat: Provides a range of SEO features, including keyword research, competitor analysis, rank tracking, site audit, backlink analysis, and more. Source: about 3 years ago
Https://raventools.com - used it waaay back, since been acquired by TapClicks -not sure if that's a good thing or a bad thing Https://serpstat.com - see this one get mentioned quite a bit; never used tho Https://www.link-assistant.com... Source: over 3 years ago
Serpstat - A comprehensive SEO tool that offers keyword research, rank tracking, site audit, and backlink analysis. Pricing starts at AUD $103.20/month. Link: https://serpstat.com/. Source: over 3 years ago
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