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FAQ
What does flattening a PDF mean?
Flattening converts interactive elements like form fields, checkboxes, and dropdown menus into static content that cannot be edited.
When should I flatten a PDF?
Flatten a PDF before sharing filled forms, before printing, or when you want to prevent further changes to form data.
Can I unflatten a PDF?
No. Flattening is irreversible. Keep a copy of the original if you might need to edit the form later.
Does flattening reduce file size?
It can, since interactive form element definitions are removed. The size reduction depends on the complexity of the original form.
What types of fields are flattened?
All interactive fields including text inputs, checkboxes, radio buttons, dropdown menus, and signature fields.