Polydoc

REST API to convert HTML strings or URLs into PDFs and screenshots with full rendering control

polydoc.tech

Verified API available Works with n8n Free tier

Quick facts
What is it	REST API to convert HTML strings or URLs into PDFs and screenshots with full rendering control
Pricing	Freemium — from $9/mo
Free tier	Yes
Platform	API
API	Yes
Works with	n8n
Best for	generating invoices and receipts, creating PDF reports from web pages
Domain registered	2024

Data updated June 26, 2026

What does Polydoc do?

Polydoc is a REST API that turns HTML strings or URLs into PDFs and screenshots. You send it HTML or a web address, and it returns a high-fidelity PDF or image file. The API uses a Chromium-based rendering engine, so it supports modern JavaScript, CSS, and web fonts — the output looks exactly like a browser would render it. It handles everything from simple one-page documents to complex layouts with headers, footers, watermarks, and encryption.

What sets Polydoc apart is the depth of control it gives developers. You can generate PDF/A compliant files for archival, create hybrid e-invoices with embedded XML (Factur-X and ZUGFeRD), and produce tagged PDFs for accessibility. The screenshot capture supports full-page or clipped regions, custom viewports, and transparent backgrounds. For developers, there are templates with Liquid syntax, webhooks with signed payloads, and the option to deliver files directly to your own cloud storage via presigned URLs. A sandbox mode lets you test without using up your quota.

Polydoc is built for developers and businesses that need reliable, automated document generation. It's a good fit for generating invoices, receipts, reports, or any document that starts as HTML. The stateless, privacy-first design means your data isn't stored after conversion, and the auto-scaling infrastructure handles high volumes. If you need to convert web pages to PDFs or screenshots at scale, Polydoc gives you the tools to do it without building your own rendering pipeline.

Non-AI Developer Tools — Other

#developer tools#document conversion#e-invoicing#html to pdf#pdf-archival#pdf generation#rest api#screenshot-api

Key features

What makes it stand out

Convert HTML or URLs to high-fidelity PDFs using Chromium rendering with JavaScript and modern CSS support

Generate PDF/A compliant documents for long-term archival with optional VeraPDF verification

Capture pixel-perfect screenshots in PNG, JPEG, or WebP with full-page or clip region options

Add watermarks, encryption, metadata, and PDF outlines to control document appearance and security

Use templates with Liquid syntax and dynamic data, plus webhooks and presigned URL delivery

Who is Polydoc for?

Who benefits most from this tool

generating invoices and receipts

creating PDF reports from web pages

capturing screenshots for testing or archiving

Pricing

Free tier available — start without a credit card

Free

30sec timeout
150 conversions per month
150 conversions* / month
30sec timeout*
Friendly overage policy*

Starter

$9.0/month

$7.5/month billed yearly

10m timeout
1,000 conversions per month
1000 conversions* / month
10m timeout*
Friendly overage policy*

Standard

$19.0/month

$15.83/month billed yearly

10m timeout
5,000 conversions per month
5000 conversions* / month
10m timeout*
Friendly overage policy*

Business

$39.0/month

$32.5/month billed yearly

10m timeout
15,000 conversions per month
15000 conversions* / month
10m timeout*
Friendly overage policy*

Business XL

$99.0/month

$82.5/month billed yearly

10m timeout
50,000 conversions per month
50000 conversions* / month
10m timeout*
Friendly overage policy*

Premium

$279.0/month

$232.5/month billed yearly

10m timeout
150,000 conversions per month
150000 conversions* / month
10m timeout*
Friendly overage policy*

Premium XL

$499.0/month

$415.83/month billed yearly

10m timeout
300,000 conversions per month
300000 conversions* / month
10m timeout*
Friendly overage policy*

Enterprise

$699.0/month

$582.5/month billed yearly

10m timeout
500,000 conversions per month
500000 conversions* / month
10m timeout*
Friendly overage policy*

Custom

Cheaper price per conversion*
Custom timeout*

Trust & presence

Domain Domain registered 2024

Gallery

Click any image to enlarge

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