/// EDIT
Free

Flatten PDF Form API

Make filled-in fields and annotations permanent, non-editable page content.

/// Quick answer

Flatten permanently merges a PDF's form fields and annotations into the page content itself, so they're no longer editable — the response reports exactly how many annotations were flattened.

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How does the Flatten PDF Form API work?

One HTTP request from any language. Every ASHDOCS endpoint uses the same X-API-Key header.

curl -X POST https://www.ashdocs.com/api/v2/tools/pdf-flatten \
  -H "X-API-Key: ash_live_..." \
  -F "file=@form.pdf"

Common use cases

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