Anvil is a document-automation platform with APIs for filling PDFs, generating PDFs from HTML or Markdown, collecting e-signatures and building paperwork workflows. Its main parts are Etch E-sign, PDF Services and Workflows. Developers can embed signing in their own application, including under their own branding. Anvil is delivered as a cloud service through REST and GraphQL APIs.
Anvil is a product of Anvil Foundry, Inc. in San Francisco, California, so it is a US vendor subject to US jurisdiction, including the CLOUD Act. The vendor states that it is GDPR-compliant and offers data processing agreements. Its privacy policy says personal information is transferred outside Europe, including to Canada and the United States, and refers to the EU-US Data Privacy Framework. No hosting location or sub-processor list is published, so ask for these in advance.