PDFops

Fill and merge PDFs from one HTTP call. No headless Chrome.

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Sep 9, 2026 Developer Tools

api document_generation pdf pdf manipulation serverless

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PDFops is a hosted HTTP API for the PDF work that keeps getting reinvented: fill AcroForm fields, merge documents, generate invoices. No headless Chromium and no native dependencies, so it runs anywhere a fetch call does, including Vercel, Cloudflare Workers, Lambda, Deno Deploy and Bun. Fills are byte-deterministic, which is what makes them testable in CI: same input, same bytes. There is an MCP server too, so agents can call it over stdio without a key.What it doesFill AcroForm fields from a JSON map, flatten optionalMerge multiple PDFs in one requestGenerate invoices from structured dataInspect any PDF's form fields, no signup neededByte-deterministic output, diffable in CIRuns on any edge or serverless runtime, no native depsTyped zero-dep SDK, an MCP server and an n8n community nodeFree tier: 250 requests/month with an emailed API key