Flatten PDF

Processed locally — file never leaves your browser

Make fillable PDFs read-only by flattening all form fields and annotations.

Drop a PDF here

Select a fillable PDF to flatten

PDF files supported

How it works

1
Upload your fillable PDF
Drop a PDF with interactive form fields onto the upload area.
2
Click 'Flatten PDF'
The tool converts all form fields, checkboxes, and annotations into static content. Nothing is uploaded.
3
Download the result
Download the flattened PDF. The values are preserved visually but the fields are no longer interactive.

Your file never leaves your device

This tool runs entirely in your browser using pdf-lib. Nothing is uploaded. Safe for Aadhaar, PAN, bank statements, and confidential documents.

What is PDF flattening?

Flattening bakes all interactive form fields and annotations into the static content of the page. The values remain visible but cannot be edited.

When should I flatten a PDF?

Before sending a filled form to clients or printing — to prevent accidental or deliberate changes to the filled values.

Will the filled values be preserved?

Yes. The text, checkmarks, and other field values are drawn directly onto the page content.

Are my files uploaded?

No. Flattening runs entirely in your browser using pdf-lib. Your file never leaves your device.

Can I undo flattening?

No. Flattening is irreversible — always keep a copy of the original fillable PDF before flattening.