Flatten PDF
Lock interactive form fields, layers, and annotations into static background elements.
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How to use Flatten PDF
Upload your PDF
1/4Select the PDF with form fields or annotations to flatten.
Review form content
2/4Ensure all form fields contain the correct values before flattening — the process is irreversible.
Flatten
3/4Click "Flatten PDF". All interactive elements are baked into the page content.
Download the flattened PDF
4/4Save the static, non-editable PDF.
Pro Tips
Tip 1
Double-check all form values before flattening — this operation cannot be undone.
Tip 2
If you need a backup, keep the original interactive PDF alongside the flattened version.
Tip 3
Use PDF/A conversion after flattening if the document needs to meet archival standards.
Frequently Asked Questions
No. Flattening is irreversible. Always keep a copy of the interactive original before flattening.
Yes. All annotation types — including text comments, ink, highlights, and stamps — are merged into the page content and are no longer separately accessible.
Existing digital signatures are merged into the static content, but they lose their cryptographic validity since the document content changes. Do not flatten a document that requires a valid verified digital signature.