Turn filled-in form fields, comments and stamps into fixed page content so they print correctly and can't be changed by the next person who opens the file.
Runs in your browser. Your files never leave your device.
One PDF, up to 100 MB. You can also drop it here. You can also drop or paste files here.
Flatten a form after you've filled it in and before you send it, so your answers can't be edited by accident and look the same in every PDF reader. Flattening also fixes forms whose answers don't show up when printed or previewed on a phone, and it is a good last step after signing.
Text that is part of the page stays selectable. Only interactive parts, such as form fields, checkboxes, comments and highlights, are merged into the page.
It turns form fields and annotations into ordinary page content, so they can no longer be edited.
Not in the flattened file. Keep the original if you might need to edit it later.
Yes. Normal page text is unchanged.
No. The PDF is processed in your browser on your own device and never leaves it.