Flattening turns fillable form fields into ordinary page content so the answers can no longer be edited. You can also strip comments, highlights and links.

Flatten form fields

Remove comments, highlights and links

How to use Flatten forms

Step 1

Add your PDF.

Step 2

Choose whether to flatten forms and whether to remove annotations.

Step 3

Press Flatten now and download.

What people use it for

• Finalise a completed form

• Share a document without review comments

• Make form answers uneditable

Frequently asked questions

Can I undo flattening?

Not in the new file. Keep your original if you may need editable fields again.

Where do my files go?

Most tools work entirely inside your browser tab, so the PDF is processed on your device and not uploaded to us. The AI tools are the exception: with your own key, the text of your PDF is sent to the AI provider you choose, and they say so before you start.

Do I need an account, and is there a limit?

No account, no watermark and no daily limit set by the site. Very large files are limited only by your device’s memory.

Last updated 2026-11-08.

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