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or drop a file here
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After you fill in a PDF form, the answers can still be edited by anyone who opens the file. Flattening turns the filled fields, comments and stamps into a normal, fixed part of the page.
This is useful before you send a signed or filled form, and it also fixes forms that look different in different PDF readers. Your file is uploaded only for this job and deleted immediately afterwards.
Yes. Everything you see on the page stays exactly where it is; it simply can no longer be edited as a form field.
Not in the flattened file. Keep your original PDF if you may need to change the answers later.