Flatten PDF
Lock forms, annotations and layers permanently into the page
No installation neededWorks directly in your browser — no software to download
No limitsProcess as many files as you need
GDPR compliantFiles deleted after download
100% FreeNo account or subscription needed
How to Flatten PDF
Upload your PDF
Select the PDF you want to flatten. Forms, annotations, and transparency layers will be detected automatically.
Choose what to flatten
Select which elements to flatten: form fields, comments & annotations, and/or transparency layers. All are enabled by default.
Flatten and download
Click "Flatten PDF". The result is a locked PDF that nobody can edit — perfect for sharing or archiving.