PDF Flattener
Flatten interactive form fields into static page content, so filled values can no longer be edited out.
- 100% free
- No sign-up
- Clear controls
- Open and use
What is PDF Flattener?
PDF Flattener converts interactive form fields into static page content.
Text inputs, checkboxes and dropdowns keep their current values, but become part of the page and can no longer be edited out. This is what you want before printing, archiving, or sending a filled form to someone. It flattens form fields specifically — standalone annotations such as sticky notes and highlights are a different structure and are left as they are. A PDF with no form fields is refused rather than returned unchanged with a success message. The tool runs entirely in your browser for complete privacy.
How to use PDF Flattener
- 1
Upload your PDF
Click the upload area or drag and drop a PDF that contains interactive form fields.
- 2
Review form fields
The tool shows how many interactive form fields were detected in your document.
- 3
Flatten
Click the Flatten button or press Ctrl+Enter. Every form field becomes static page content.
- 4
Download
Download the flattened PDF. The field values are now part of the page.
- 5
Verify
Open the downloaded PDF to confirm that all fields display correctly as static text.
Everything this tool
does for you
- Flattens all interactive form fields to static text
- Field values become permanent page content
- Shows form field count before flattening
- Makes PDFs consistent across all viewers
- Prevents unauthorized editing of filled forms
- Runs in your browser — files never uploaded
- PDF files up to 100 MB; no daily quotas
- Works with complex multi-page forms
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Free to start · No signup required
- Flatten interactive form fields
- Filled values become permanent page content
- Makes PDFs print-safe and consistent
- Prevents editing of filled forms
- Files never leave your browser
- No signup or limits