Flatten PDF
Bake form fields and annotations into the page
Flattens AcroForm fields into the page so they're no longer editable. Useful when sending a filled form to someone who shouldn't be able to change it.
About Flatten PDF
A PDF flatten tool merges form fields, annotations, and layered content into the page itself, making them part of the underlying page rather than editable overlays. Useful before sharing forms — flatten the filled values so they can't be changed by the recipient.
Frequently asked questions
Form fields, annotations, comments, and signatures are normally separate from the page rendering. Flattening merges them in, making them permanent.
Recipients of a non-flattened filled form can edit or clear the fields. Flattening locks in the values.
Yes — pick whether to flatten forms, annotations, or both.
Embed this tool on your site
Drop a one-line iframe snippet into any blog, lesson plan, or knowledge base. Powered-by-Toolenza link included.
Embed this tool
Paste this snippet into any HTML page. The tool runs entirely in your reader's browser.
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Flatten PDF
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