Flattening merges form fields, signatures, and comments into one static layer so nothing can be edited afterwards. Learn when e-filing systems demand it and three free ways to flatten a PDF.
How to Flatten a PDF Online Free?
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1 Upload your PDF
Select the PDF file you want to make uneditable and upload it to our secure online converter. -
2 Flatten your PDF
In seconds, our tool will convert your interactive or editable PDF into a static, uneditable version. -
3 Download your flattened PDF
Save the new flattened version to your device. We automatically delete your file after processing to protect your privacy.
Best Free PDF Flatten Tool
Flatten your PDF in seconds. All text, images, comments, and form fields are merged into one simple, secure layer. Ideal for sharing or archiving across any device or system.
Choose How You Flatten Text
Pick the level of protection that suits your needs: keep text searchable and selectable, or make it fully read-only so no one can copy or highlight it. You stay in control of your PDF's accessibility.
Secure & Private Processing
Your files are processed securely and deleted automatically after flattening. Only you have access - we never store or share your data.
Access Anywhere, Anytime
Flatten PDFs from any device (Windows, Mac, Linux, or mobile) as long as you have an internet connection. No app download or installation required.
Try It for Free
Use our flattening tool at no cost. Need more? Upgrade anytime to convert larger files or access unlimited tools with no wait times.
Will flattening my PDF preserve its quality?
Yes, flattening preserves the vector-based quality of your PDF. This means text and graphics remain crisp and clear, perfect for printing or zooming, without converting everything to low-resolution images.
Can I prevent others from copying the text?
Yes! You have the option to vectorize text during flattening. This makes the text unselectable and uncopyable, while still looking identical. If you prefer to keep the text selectable and searchable, simply leave this option unchecked.
Can I flatten a password-protected PDF?
Absolutely. You can upload a password-protected PDF, and we'll prompt you to enter the password before flattening. Once unlocked, it flattens just like any other file.
What if I want to rasterize my PDF, instead of flattening it?
No problem. If you prefer to rasterize your PDF (turning all content into images) you can first convert your PDF pages to images, and then convert those images back into a PDF. This gives you a fully rasterized version with no selectable text or layers.
PDF conversion guides
Flatten PDF documents automatically
Flatten form fields and layers in PDFs programmatically using ConvertAPI.