Flatten PDF

Bake annotations, form fields, and interactive elements into the document permanently.

Your files are processed in your browser and never uploaded to our servers.

Drop your PDF here

or click to browse

PDF files up to 25.0 MB

FAQ

What does flattening a PDF mean?

Flattening bakes all interactive elements — form fields, text inputs, checkboxes, dropdowns, and annotations — directly into the page content. The values become part of the fixed layout and can no longer be edited or changed.

When should I flatten a PDF?

Flatten before sharing a completed form so recipients cannot alter the filled-in data. It is also useful for archiving, printing, or ensuring consistent appearance across different PDF viewers.

What if my PDF has no form fields?

The tool still works — it will save a clean copy of your PDF. No data is lost and the output file will look identical.

Is this processed on a server?

No. Everything runs 100% in your browser using pdf-lib. Your file never leaves your device.