Flatten PDF
Convert interactive form fields into static content. Finalize your PDF for distribution.
Drag your PDF here or click to choose
Single file, up to 100MB
When to Use This Tool
Flatten your PDF when you need to finalize a form or document with interactive fields — convert fillable form fields, annotations, and interactive elements into static content. This prevents accidental edits and ensures consistent rendering across all PDF readers.
How to Flatten PDF
- Upload your PDF
- Click Flatten
- Download the flattened PDF
Features
- Convert form fields to static content
- Prevent accidental edits
- Finalize for distribution
- 100% browser-based
Things to Know
Flattening is irreversible. Once form fields are converted to static content, they can no longer be edited or filled in. Always keep a copy of the original if you need to edit the form later.
Frequently Asked Questions
What does flattening a PDF mean?
Flattening converts all interactive elements (form fields, annotations, comments, layers) into static, non-editable content on the page.
When should I flatten a PDF?
Flatten before sending forms to ensure the filled data displays correctly on any device. Also flatten before archiving to prevent unintended changes.
Can I unflatten a PDF?
No. Flattening is a one-way operation. Keep the original file if you think you'll need to edit the form fields again.
Does flattening change the visual appearance?
No. The document looks identical after flattening. Only the underlying interactivity is removed.
Built for finalizing forms, locking interactive fields, and preventing accidental edits before distribution. Continue with Protect PDF or Compress PDF.
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