# Flatten PDF forms

> Flatten form field values so they can no longer be edited. Free flatten PDF — useful before sharing a filled form. No upload.

Canonical: https://mypdf.space/tools/flatten
Last updated: 2026-10-26

## Short answer

Flatten forms runs entirely in your browser. Flatten form fields so values can no longer be edited. No account, no watermark, and the file never leaves your device.

## About this tool

Flatten form fields so values can no longer be edited.

Flatten form field values so they can no longer be edited.

Flatten form field values so they can no longer be edited — useful before sharing a filled form.

## How to use

1. Open a PDF with filled form fields.
2. Click Flatten.
3. Download the non-editable PDF.

## What you need

- A PDF with form fields

## Notes

- Flattens field values so they cannot be edited later.

## FAQ

### What does flatten do?

It bakes form field values into page content so they can no longer be edited — useful before sharing a filled form.

### What if there are no fields?

The tool reports that and still lets you save; there is nothing interactive to flatten.

### Should I flatten before encrypting?

Often yes for filled applications — flatten, then Encrypt PDF or Confidential Send so recipients cannot tweak answers.

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- [Fill & sign](https://mypdf.space/tools/forms)
- [Sign PDF](https://mypdf.space/tools/sign-pdf)
- [Compress PDF](https://mypdf.space/tools/compress)
- [Encrypt PDF](https://mypdf.space/tools/encrypt-pdf)
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- [PDF to JPG/PNG](https://mypdf.space/tools/pdf-to-images)
- [Category](https://mypdf.space/optimize)
