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Flatten a PDF form

Make the form fields of a PDF permanent. After flattening the fields are no longer editable and the form looks like a regular PDF.

Choose your PDF

Drop here or click to choose

Files stay on your device — nothing is uploaded

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Your file is processed in your browser and never uploaded.

How does it work?

  1. 1

    Choose your filled form

    Drag the PDF with form fields here.

  2. 2

    Flatten

    All fields are merged into the page.

  3. 3

    Download

    Download the PDF without editable fields.

Frequently asked questions

Why flatten?

To prevent filled-in values from being accidentally changed, or to print the form as a normal PDF.

Can I edit it afterwards?

No, after flattening the fields are permanent. Keep a copy if you need it.

Are my files uploaded?

No. Everything happens in your own browser. Your file never leaves your device and is not stored anywhere.

Is it free?

Yes, completely free, without watermark or account. The site is paid for by ads.

More reading

Remove a password from a PDFHave a protected PDF whose password you no longer need? If you still know the password you can easily remove the protection.Edit PDF metadataEvery PDF file contains hidden information: the author, the title, the program used to create it, and the creation date.

Why in the browser?

PDFrust runs entirely in your browser using WebAssembly and modern JavaScript libraries such as pdf-lib and PDF.js. Your file is never sent to a server — all processing happens locally on your device. This means your documents remain private by design, regardless of what they contain. There is no account required, no file size limit, and nothing is stored after you close the tab.

Related tools

Add page numbersPut clean page numbers at the bottom of every page of your PDF.Add watermarkPut a text watermark diagonally across every page of your PDF.