pdf flatten
Remove form fields and make PDF content permanent — no uploads, no accounts.
Click to choose a PDF or drop it here
single file only
ℹ️ Flattening permanently removes interactive form fields, annotations, and checkboxes — merging them into the page content. This cannot be undone.
Flattening PDF, please wait…
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How to use PDF Flatten
Upload your PDF and click flatten. All form fields, checkboxes, and annotations are permanently merged into the page. works in browser — no uploads.
Why flatten a PDF?
Flattening prevents others from editing form fields, ensures consistent printing, and reduces file size. Essential before sharing finalized forms or contracts.
FAQ
What does flattening do exactly?
It merges all interactive elements — text fields, checkboxes, radio buttons, signatures, and annotations — permanently into the page so they can no longer be edited.
Can I undo a flatten?
No — flattening is permanent. Always keep a copy of the original before flattening.
Is my file stored anywhere?
No — works in browser. No uploads to server.
Will my filled-in form data be preserved?
Yes — any data already entered in form fields is preserved as static text in the flattened PDF.
Does it work on signed PDFs?
Yes — signatures and annotations are flattened into the page along with form fields.