PDF Utilities
Flatten PDF & Remove Annotations Online
Flattens interactive form fields and removes annotations to prevent accidental edits or disclosure.
How to use Flatten PDF
- Choose a PDF with interactive forms or annotations.
- Click Process to flatten all fields and remove dynamic annotations.
- Download the locked PDF.
A practical example
Lock a filled-out tax form or employment application so the values cannot be tampered with.
What to check before using the result
Flattening is permanent on the output file. Always retain an untouched original of fillable forms.
Local processing
Inputs are processed in this tab. The site and some engines still load network assets.
Inspect before sharing
Review the output and keep the original file. Large files may take longer to process.
No account needed
No account, API keys, or watermarks required.