Flatten PDF — Free
Flatten forms and annotations into static content. No signup required. Secure, fast, and free.
Drop your file here
or click to browse · .pdf · Max 25 MB free
How to Flatten PDF
Upload your PDF
Select what to flatten (forms, annotations, JS)
Click 'Flatten'
Download the flattened PDF
Frequently Asked Questions
1What does flattening a PDF do?
Flattening converts interactive elements (form fields, annotations) into static, non-editable content — like printing to paper.
2Can I flatten only form fields?
Yes. Choose to flatten forms only, annotations only, or both. JavaScript removal is also available.
3Will flattened form data still be visible?
Yes. All filled-in data becomes static text on the page — visible but no longer editable.
4Why flatten a PDF before sharing?
Flattening prevents recipients from changing form data, ensures consistent rendering, and removes potential security risks from interactive elements.
5Does flattening reduce file size?
It can slightly reduce file size by removing form field definitions and JavaScript. For significant size reduction, use the compress tool.
Why Use ZiaSign's Flatten PDF Tool?
ZiaSign's free PDF flattener converts interactive elements into static content. Form fields become plain text, annotations become part of the page, and JavaScript is removed. The result is a clean, non-editable PDF that displays identically on any device. Perfect for finalizing documents before distribution. No watermark, no signup.
Also known as: flatten pdf online free · flatten pdf forms · flatten pdf annotations · make pdf non-editable · pdf flattener
How-to guide
Prefer the step-by-step version first?
Step-by-step instructions to flatten forms and annotations into static content with ZiaSign.
Popular Ways to Use Flatten PDF
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