Flatten a PDF
Lock form fields and annotations so nothing can be changed.
Drop a PDF to flatten
Processed on our secure server, then deleted right away.
Flatten a PDF so that form fields, checkboxes, and annotations become part of the page and can no longer be edited. This is useful before sending a completed form so no one can alter the answers. Your file is processed securely and deleted right after.
How to flatten pdf
- 1Upload your filled or annotated PDF.
- 2We merge the fields and annotations into the page.
- 3Download the flattened PDF.
- 4Share it knowing the content is locked.
Frequently asked questions
What does flattening do?
It turns interactive fields and annotations into static page content, so the values are fixed and cannot be edited in a PDF reader.
When should I flatten a PDF?
Before sending a completed form, so the answers cannot be changed, and to make sure it looks the same in every viewer.
Is my file kept?
No. It is processed on our server and deleted immediately after.
Is it free?
Yes, flattening PDFs is free.