Flatten a PDF form
Turn filled-in form fields into normal page content, so the answers can’t be changed and show the same in every viewer.
Files stay in this browser tab. Close the page and they are gone.
How it works
- Add the filled-in PDF form.
- Check how many fields it has.
- Download the flattened PDF.
Questions
When should I flatten a form?
Before sending a completed form: flattening stops anyone changing your answers and avoids fields looking empty in some apps.
Can I edit the form afterwards?
Not in the flattened copy. Keep your original if you might need to change the answers.
Are my files uploaded anywhere?
No. The tool runs entirely in your browser, so your files never leave your device and nothing is kept after you close the page. You can check it yourself: once the page has loaded, turn on airplane mode — the tool keeps working.
Is it free? Is there a file limit?
Yes, it is free, with no sign-up and no watermark. There is no upload limit because nothing is uploaded; very large files are limited only by your device’s memory.