Inkspan
One REST API for generating, transforming, extracting and translating documents
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inkspan.devAbout Inkspan
Inkspan is a single REST API for the document plumbing most teams end up rebuilding: generating PDFs, manipulating them, extracting structured data out of them, and translating them. Every endpoint is one authenticated POST with an API key header, and the site leads with a working curl example rather than a demo request — you can test an endpoint, integrate it, and ship without talking to anyone. The generate family turns HTML, Handlebars-style templates or Markdown into pixel-faithful PDFs. The manipulate family covers merge, split, compress, watermark, rasterize to images, and form filling. The extract family pulls text and tables into clean JSON, and it is explicit that extraction returns confidence scores rather than false certainty, which matters when the output feeds an automated pipeline that has no human checking it. A translate endpoint handles documents or raw text via an LLM. The framing throughout is that this is infrastructure for developers and AI agents equally: an agent given the API key can generate an invoice or read a contract without a browser, a headless Chrome install, or a document-processing service to operate. SDK snippets ship for cURL, Python and Node, and pricing is usage-based with a free tier and no seat count — an important detail when the consumer of the API is a process rather than a person.
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Key Features
Inkspan Pros & Cons
✅ Pros
- +Usage-based with no seats — fits agent and machine consumers
- +Confidence scores on extraction instead of unqualified output
- +Self-serve from the homepage, no sales call
⚠️ Cons
- −No public rate card, so cost needs a signup to establish
- −Broad surface area means no single endpoint is deeply specialised
- −Translation quality inherits whatever model sits behind it
Who Is Inkspan Best For?
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