Local Security tool
Flatten PDF
Flatten PDF is for completed forms you want to lock visually. Field widgets are flattened with pdf-lib. Not every annotation appearance is guaranteed.
Drop your file here
PDF files only up to 100 MB
Files stay local on this device
Private by design. Your files stay on this device and are never uploaded.
How it works
How Flatten PDF works
Flatten PDF is for completed forms you want to lock visually. Field widgets are flattened with pdf-lib. Not every annotation appearance is guaranteed.
Guided steps
How to use Flatten PDF
- 1Select a PDF that contains AcroForm fields.
- 2Review that you want values baked into the pages.
- 3Flatten the form locally.
- 4Download the flattened PDF.
Questions
Flatten PDF FAQs
Can I edit fields after flattening?
Filled values become page content. Recipients generally cannot type into those widgets anymore.
Are comments and markup fully flattened?
This tool focuses on AcroForm fields. Remaining annotations may still exist.
Does flattening encrypt the file?
No. Use Password Protect PDF if the flattened file also needs a password.
Continue locally
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