Open the Flatten PDF Tool
Go to our Flatten PDF tool. Upload your PDF. Your file never leaves your device.
How to Flatten a PDF (Free)
Flattening merges form fields, annotations, and layers into the page content. The PDF looks the same but is no longer easily editable—useful when you want to lock in answers, prevent changes, or create a print-ready file. No sign-up, no server uploads.
Flatten Your PDF
The tool merges form fields and annotations into the page content. Use this after filling out a form so answers are "baked in," or to remove editable fields before sharing.
Download Your Flattened PDF
Download the flattened PDF. It may be smaller and will display more consistently. No watermarks, no limits—free.
When to Flatten a PDF
- Finalize forms — Lock in form answers after filling out
- Remove editing — Prevent others from changing fields
- Privacy — Processing in your browser, no uploads
- No sign-up — Flatten and download immediately