How to flatten pdf
- Select or drop your PDF.
- Click “Flatten PDF”.
- Download the flattened file.
Frequently asked questions
Why flatten a PDF?
Flattening stops others from changing form answers, and fixes forms or comments that show differently (or not at all) in some viewers and printers.
Can I undo flattening?
No — fields become ordinary page content. Keep the original if you might need to edit it again.