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OPTIMISE
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Flatten PDF

Convert form fields and annotations to static content in your PDF document.

Flattening Options
Convert interactive form fields to static text and graphics.
Convert comments, highlights, and other annotations to static content.

About PDF Flattening

PDF flattening converts interactive elements to static content, which helps:

  • Ensure the document appears the same for all viewers
  • Prevent further editing of form fields
  • Make annotations permanent part of the document
  • Reduce file size by removing interactive elements
  • Improve compatibility with older PDF viewers

What Gets Flattened

Form Fields

Interactive elements such as:

  • Text input fields
  • Checkboxes and radio buttons
  • Dropdown menus
  • Buttons
  • Digital signature fields
Annotations

Comments and markup such as:

  • Text notes and comments
  • Highlights and underlines
  • Stamps and watermarks
  • Drawing markups
  • File attachments
Note: Once a PDF is flattened, the interactive elements cannot be restored. Make sure to keep a copy of the original PDF if you need to edit the form fields or annotations later.