Flatten a PDF online
Lock form fields and annotations
Loading…
Lock form fields and annotations
Flattening turns form fields into plain page content, so the filled-in values can no longer be edited. You can also bake in annotations. It runs in your browser and the file is not uploaded.
It makes form fields part of the page, so the filled values stay visible but can't be changed by someone who opens the file.
No. It stops casual edits to form fields, but it is not encryption. Use Protect PDF to add a password.
No. It is processed in your browser.