Flatten supported PDF form fields. Free, private, runs in your browser.
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Flatten PDF converts supported AcroForm field appearances into normal page content and removes the editable widgets from the saved copy. It is useful before sharing completed forms or archiving simple submissions.
Flattening is not a security cleanup or redaction process. It does not guarantee removal of hidden layers, embedded files, comments, object history, or content outside the visible page.
The PDF is loaded and rewritten in the browser with pdf-lib. Convertful does not upload your form, but rewriting can invalidate signatures or certification workflows, so keep the signed original.
For supported AcroForm fields, flattening turns the field appearance into normal page content and removes the editable form widgets from the saved copy.
No. Flattening does not guarantee removal of hidden content, layers, embedded files, comments, object history, or text outside the page view.
No. Convertful loads the PDF in your browser, uses pdf-lib to flatten supported fields, and creates the download locally.
Yes. Any rewrite can invalidate digital signatures or certified-document workflows. Keep the original signed PDF if signature status matters.
If the PDF has no supported AcroForm fields, it may already be flat or may use unsupported XFA/custom form structures.