Flatten a PDF
Turn filled form fields and annotations into ordinary page content so they look the same everywhere and can't be edited.
How to use Flatten PDF
- Open the PDF.
- Choose what to flatten.
- Confirm and download.
When to use it
- Submitting a completed form.
- Sharing a reviewed document whose comments must not change.
What to expect
- Flattening can make fields and annotations permanently non-editable.
Questions
Can I unflatten later?
No — keep the original if you may need to edit again.