Anvil PDF Generation API vs DocSpring
Anvil PDF Generation API
useanvil.com
DocSpring
docspring.comSide by side
| Figure | Anvil PDF Generation API | DocSpring |
|---|---|---|
| Price from | $99/mo | $49/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 3 |
| Spec score · HTML to PDF APIs | 8.7 (#2) | 8.3 (#7) |
| Spec score · Docs Automation | 8.6 (#4) | 8.3 (#9) |
| Spec score · Document Template Management Software | 8.7 (#5) | 8.3 (#10) |
| Compliance | Anvil states it is SOC 2 Type II, GDPR/DPA, and HIPAA compliant and maintains Business Associate Agreements. | DocSpring says it completed a SOC 2 Type II audit and is GDPR and HIPAA compliant; BAAs are available on request, and a BAA is required before submitting protected health information. |
| Deployment | cloud | cloud, self hosted |
| Integrations | Zapier | The site lists integrations with AWS S3, Bubble, Zapier, n8n, Node-RED, and Parabola, plus REST API, client libraries, and webhooks. |
| 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. | The company identifies SaaS developers, agricultural software developers, and financial and legal businesses processing forms as users of DocSpring. |
| Key features | Generate PDFs from HTML and CSS · Generate PDFs from Markdown, including tables and images · Set PDF page dimensions and margins · Add page headers, footers, and page numbers · Use custom TTF fonts · Generate dynamic, variable-length documents · Create PDFs with fillable form fields · Fill reusable PDF templates with supplied data | Fill PDF templates with JSON data through a REST API · Generate PDFs from HTML, CSS, and Liquid templates · Visual drag-and-drop PDF template editor · Batch generation of up to 50 PDFs per request · Synchronous and asynchronous PDF processing with webhooks · Combine PDFs from submissions, templates, uploaded files, and URLs · Automatically generated web forms and embedded forms · Electronic signatures with data requests and audit trails |
| 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. | DocSpring says stored submission data is encrypted at rest with AES-256, stored files use AWS Key Management Service, and access is via TLS. |
| Support | Standard support is available by email at [email protected], while the pricing page lists priority support for Enterprise. | Support is handled by DocSpring's engineers, and the company says fixes are usually deployed within days. |
| Support | email, chat |
Plans
Anvil PDF Generation API
- FreeFree
- AI Pack$99 a month
- Product Pack$425 a month
- EnterprisePriced on request
- PDF fill / generation over API$0.10, paid once
In their own words
Anvil PDF Generation API
Anvil PDF Generation API creates PDFs on demand from HTML and CSS or Markdown. For HTML, it supports full CSS, custom TTF fonts, page dimensions and margins, headers and footers, page numbers, and fillable forms. Markdown conversion applies a default theme, and callers can provide CSS of their own. The API can also generate variable-length documents and merge data into PDFs. Anvil lists SDKs for C#/.NET, JavaScript, Python, and TypeScript; Go, Java, PHP, and Ruby are marked as coming soon. A Zapier integration can automate paperwork workflows, including filling a PDF or starting or pre-filling a Workflow. It is a cloud service with API and web access, email support, and listed SOC 2 and HIPAA compliance. Test mode is free and unlimited on every plan, though test documents are watermarked and use demo signatures. API PDF fill or generation costs $0.10 per use; enabling metered usage with a valid credit card provides 2,500 starter credits. The Free plan is free and UI-only; API key access requires a credit card or upgrade. Custom fonts must be TTF; OTF and WOFF are not supported.