Flatten PDF
Merge form fields, annotations, and layers into the page content. Makes your PDF non-editable and ready for distribution — 100% private, no upload required.
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Supported: .pdf (up to 100.0 MB)
Frequently Asked Questions
What does flattening a PDF do?
Flattening merges all interactive elements (form fields, checkboxes, text inputs, annotations, comments) directly into the page content. After flattening, these elements become part of the static page and can no longer be edited, filled, or removed.
Is flattening reversible?
No. Once a PDF is flattened, the process cannot be undone. The form fields and annotations are permanently merged into the page content. Always keep a copy of the original PDF if you may need to edit it later.
When should I flatten a PDF?
Flattening is recommended when: finalizing forms for distribution or archival, before printing to ensure all fields display correctly, sending documents to clients or stakeholders who should not edit them, preparing PDFs for e-signature workflows, and reducing file size by removing interactive layers.