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Flatten PDF
Flatten form fields and annotations into the page.
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How to Flatten a PDF Online
Stop form fields and annotations from being edited — flatten your PDF to bake them into the page. It works nicely alongside watermarking or password protection.
Flatten a PDF in 3 Easy Steps
1Upload your PDF
Add the PDF with form fields or annotations you want to lock down.
2Flatten the content
EraserPro merges interactive fields and annotations into the page content.
3Download the flattened PDF
Download a PDF whose fields can no longer be edited.
Why use EraserPro to flatten your PDF
100% Free
Flatten your PDF without paying a cent — no watermarks and no forced sign-up.
Private & Secure
Everything runs in your browser — files are never uploaded, so your data never leaves your device.
No Installation
Works right in your web browser — there's nothing to download or install.
Any Device
Use it on Windows, macOS, Linux, iOS or Android — the experience is seamless everywhere.
Frequently Asked Questions
Is my PDF uploaded to flatten it?
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No — flattening runs in your browser, so your document stays private.
What does flattening do?
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It converts interactive form fields and annotations into static page content that cannot be edited.
Why flatten a PDF?
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To preserve a filled form exactly as it looks and prevent further changes before sharing.
Is flattening free?
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Yes, it is free with no watermark.