Flatten PDF Forms and Annotations Flatten PDF forms.

What Is PDF Flatten?

This tool flattens PDF forms and annotations into static content. Free, browser-based, no upload. All processing runs in your browser.

Why Use PDF Flatten?

• Flatten form fields in one click
• Client-side processing
• Free
• One-click copy

Common Use Cases

Development

Flatten forms during development.

Review

Validate flattened output before delivery.

Docs

Flatten config docs and specs.

Learning

Learn how flattening works.

Technical Guide

Client-side JS with React. Memoized. Clipboard API. Responsive UI.

Tips & Best Practices

• 1
  Use presets for common options
• 2
  All processing stays local
• 3
  Copy or download the result
• 4
  Bookmark for quick access

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Frequently Asked Questions

Q Is the PDF Flatten tool free?

Yes, it's free.

Q Is my data safe when flattening PDFs?

Yes. All processing runs in your browser.

Q Can I use PDF Flatten offline?

Yes, after loading the page once.

Q Which browsers support PDF Flatten?

All modern browsers.

Q Can I use it for commercial projects?

Yes, free for commercial use.

About This Tool

PDF Flatten is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.