PDF Autofiller

Open-source API that fills AcroForm PDFs from JSON data with no manual field mapping required.

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PDF Autofiller is a free, open-source API that fills AcroForm PDFs directly from JSON data with no manual field mapping, available as a hosted playground, a Python SDK, or a self-hosted Docker image. It plugs into no-code tools like n8n and Zapier, making it useful for automating government forms and other document-heavy workflows.

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