PDF Flatten
Flatten form fields and annotations to prevent further editing.
100% Free Forever
Upload PDF
Drag & drop a PDF with forms
Free PDF Flatten Tool
Flatten form fields and annotations into the page so they can't be edited further. Useful for final, locked versions of completed forms.
How to use this tool
- 1
Upload your PDF
Drag & drop the file.
- 2
Flatten
Form fields become permanent text.
- 3
Download the flattened PDF
Save the locked file.
Pro tips
- Always keep a non-flattened backup if you may need to edit later.
Frequently asked questions
Can flattening be reversed?
No — flattening is permanent.