Flatten PDF
Merge annotations, forms, and layers into a single background layer. Make your PDF read-only and secure.
Drag & Drop PDF file here
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How to Flatten a PDF
1
Upload
Select the PDF file containing forms or layers you want to flatten.
2
Flatten
Click 'Flatten PDF'. We will merge all content into the base layer.
3
Download
Get your secure, non-editable PDF document instantly.
Frequently Asked Questions
What does "Flatten PDF" mean?
Flattening a PDF merges all layers (such as form fields, annotations, and images) into a single background layer. This prevents users from editing the form data or moving elements.
Is it reversible?
Generally, no. Once flattened, the interactive elements become part of the page image. Always keep a backup of your original file if you need to edit it later.
Is it safe?
Yes. This tool processes your file entirely in your browser using JavaScript. Your document is not uploaded to any server.