Flatten PDF
NewFlatten a PDF to permanently merge form fields, annotations, signatures, comments, and interactive elements into the static page content. Flattened PDFs cannot be re-edited or re-filled — they are "locked in" state. Flattening is essential before printing, archiving, or sharing final versions of form submissions to ensure all completed fields display correctly and cannot be modified.
Flatten PDF
Permanently merge form fields and annotations into static content.
Upload PDF with Forms/Annotations
or drag and drop here
How to Use Flatten PDF
- 1Upload your PDF with forms or annotations
- 2Click "Flatten PDF"
- 3All form fields and annotations are merged into the page
- 4Download the flattened PDF
Your Privacy is Protected
Flatten PDF runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
Frequently Asked Questions
Is flattening reversible?
No. Flattening is permanent and irreversible. Always keep a copy of the original before flattening.
Why flatten a PDF?
Flattening prevents form data from being altered, ensures consistent printing, and produces a clean PDF suitable for archiving.