Flatten PDF
Bake form fields, comments and layers permanently into the pages so nothing can be edited afterwards.
How to use
The Flatten PDF is a free online tool — no sign-up or download is required. Bake form fields, comments and layers permanently into the pages so nothing can be edited afterwards.
- Choose a PDF file from your device.
- Click Flatten PDF — every page is re-rendered with all content baked in.
- Download the flattened PDF. Note: text becomes part of the page image.
Frequently asked questions
What does the Flatten PDF do?
Free PDF flattener: merge form fields and annotations permanently into page content online. Runs in your browser.
How do I use the Flatten PDF?
Open the Flatten PDF page, upload your file using the form above, adjust the options, then click the main action button to get your result instantly. Download the result when done. No sign-up or installation is needed.
Is the Flatten PDF free to use?
Yes. The Flatten PDF is completely free, like every tool on SEO Tools by metacalculator.org. There is no sign-up, no watermark and no hidden limits.
Is my data private when I use the Flatten PDF?
Yes. This tool runs entirely in your browser, so your input never leaves your device. Nothing is uploaded, stored or shared.