Flatten PDF
Convert PDF form fields into fixed page content so filled values can no longer be changed.
Processed on your device — nothing is uploaded
Flattening is permanent — keep your original interactive form as a backup.
About the Flatten PDF
Signed, filled or annotated a PDF form? Flattening bakes every form field — text boxes, checkboxes, radio buttons — permanently into the page content. Recipients can see exactly what you see, but cannot alter the values.
It is the safest way to share completed forms, contracts and applications. The whole operation runs locally in your browser: your document is never uploaded anywhere.
How to use the Flatten PDF
- 1Drop your filled PDF form into the box.
- 2Press Flatten — every field becomes fixed page content.
- 3Download the flattened PDF.
Frequently asked questions
What does flattening actually do?
It merges the editable form layer into the page itself. The values stay visible but the fields stop being interactive or editable.
Will the appearance change?
No. Fields are rendered exactly as they currently look — flattening only removes their editability.
Can flattening be undone?
No, it is permanent by design. Keep your original interactive file as a backup.
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