Anvil PDF Generation API

by Anvil ·Web · API · paid plans from $99/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Anvil PDF Generation API is ranked #4 of 45 in PDF creation software on Freedom251. It runs on API, Web. There is a free plan. Paid plans start at $99/mo.

Anvil PDF Generation API plans and pricing

All plans

Free Free 2 users · UI only; add a credit card or upgrade for API key access · 2,500 PDF fill/generation starter credits after enabling metered usage useanvil.com · 29 Sept 2026

AI Pack $99/mo $99/mo 5 users · programmatic Document AI · 50 pages per AI-tagged PDF · higher rate limit (40/s) useanvil.com · 29 Sept 2026

Product Pack $425/mo $425/mo 5 users · includes AI Pack features · white labeling · advanced signing features useanvil.com · 29 Sept 2026

Enterprise Not published Custom Unlimited users · SSO · HIPAA, DPA · priority support · customer success useanvil.com · 29 Sept 2026

PDF fill / generation over API $0.10 once $0.10 per PDF Fill/Generation Metered integrated/API usage · 2,500 starter credits · bulk quantities start at 25,000+ useanvil.com · 29 Sept 2026

Compared on PDF creation software

Free plan: Yes
Data merge: Yes
API access: Yes

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The record

Compliance: SOC 2, HIPAA
Deployment: cloud
Support: email
Integrations: Zapier
What it does: The API generates PDFs on demand by converting HTML and CSS or Markdown to PDF.
HTML and CSS: HTML-to-PDF supports full CSS, custom fonts in TTF format, page headers and footers, and fillable forms.
Markdown: Markdown-to-PDF uses a default theme, and callers can provide their own CSS.
SDKs: Anvil lists PDF Generation SDKs for C#/.NET, JavaScript, Python, and TypeScript; Go, Java, PHP, and Ruby are marked coming soon.
Integration: The product page describes a Zapier integration for automating paperwork workflows, including filling a PDF and starting or pre-filling a Workflow.
Free testing: Test mode is free and unlimited on every plan; test requests do not count against quotas or incur charges, and test documents are watermarked and use demo signatures.
Usage pricing: PDF fill or generation over API is priced at $0.10 per use, with 2,500 starter credits after enabling metered usage with a valid credit card.
Font limitation: Custom fonts must be TTF; OTF and WOFF are not supported at this time.
Security: Anvil says it encrypts signed documents with a 2048 RSA private key stored in a secure Hardware Security Module, which its developers cannot access.
Intended users: The product is presented as an API for developers and agents, and the pricing page describes the AI Pack for technical teams working with high PDF volumes.
Price from: $99/mo

Where it ranks on Freedom251

Best PDF Creation Software in 2026#4 of 45
Best Document Template Management Software in 2026#3 of 26

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Sources

useanvil.com/pricing/· checked 24 Sept 2026
useanvil.com/docs/api/generate-pdf/· checked 24 Sept 2026
useanvil.com/docs/api/fill-pdf/· checked 24 Sept 2026
useanvil.com/products/pdf-generation-api/· checked 24 Sept 2026
useanvil.com/products/languages/· checked 29 Sept 2026
useanvil.com/products/workflows/features/security-an· checked 29 Sept 2026
useanvil.com/ai-info/· checked 29 Sept 2026