- HTML to PDF APIConvert HTML and URLs into PDFsExtract PDF Form Data APIEasily extract data from PDFsWatermark PDF APIAdd custom watermarks to PDFsProtect PDF APISecure your PDFs with passwordCompress PDF APIReduce file size without losing qualityFlatten PDF APIFlatten PDFs to make form permanentDigital Signature APISend documents for signing
- API DocumentationAPI DocumentationFull REST API referenceNodeJS SDKClient library for Node.jsJava SDKClient library for JavaC# SDKClient library for C#PHP SDKClient library for PHPPython SDKClient library for Python
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Compare the top MCP servers for e-signature workflows, including PDFGate, DocuSign, SignNow, eID Easy, DocuSeal, and Signaturit, and see which fits your AI agent stack.
Automate PDF Generation and Document Workflows with PDFGate and viaSocket
Connect PDFGate with thousands of applications through viaSocket to automate PDF generation, document processing, delivery, and digital-signature workflows.
Best HTML to PDF APIs in 2025
Converting HTML into polished PDFs has become essential for e‑commerce platforms, SaaS products, and businesses that rely on digital documents. From invoices and receipts to reports, contracts, and catalogs, HTML‑to‑PDF APIs save developers time while ensuring consistency and professionalism.
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Generate PDFs from HTML in Node.js, Python, or PHP with the PDFGate API. Copy-paste code examples, output options, and no rendering engine to host.
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Automatically generate branded invoice PDFs from HTML templates with the PDFGate API. Trigger from a payment webhook and email or archive each invoice.
Converting a Web Page to PDF
Learn how to convert a web page or URL into a PDF that preserves layout, fonts, and styling. Compare browser print, headless-browser libraries, and an HTML to PDF API, with copy-paste code examples.