---
search:
  tags:
    - Documents
    - POST
seo:
  description: >-
    Runs pdfengines/flatten — annotation appearance streams and AcroForm values
    are baked… Reference for the POST /documents/pdf/flatten endpoint in the
    Seal API.
sidebar:
  label: Flatten annotations and form fields into page content
  badge: POST
title: Flatten annotations and form fields into page content
type: openapi-operation
---
Runs pdfengines/flatten — annotation appearance streams and AcroForm values are baked into the page bytes. Seal signature fields live in the database and are unaffected. Honours the org `egress.allow_convert` gate.

`POST /documents/pdf/flatten`