Flatten PDF

Flatten form fields, signatures, and annotations into the PDF page so they cannot be edited. Free online.

How to Use Flatten PDF

1. Upload the PDF with form fields or annotations to flatten.
2. The tool identifies all interactive elements in the document.
3. Click 'Flatten' to make all annotations and form fields permanent.
4. Download the flattened PDF.

Tips for Best Results

• Flatten forms before distributing to prevent editing.
• Flattening makes annotations permanent and non-editable.
• Use this before archiving completed forms.
• Flattened PDFs are typically smaller in file size.

Why Use DigitalBox24's Flatten PDF Tool?

• Prevent form field tampering in distributed documents.
• Make annotations and comments permanent.
• Reduce file size by removing interactive element overhead.
• Ensure documents look identical on all PDF readers.

Frequently Asked Questions

Can I un-flatten a PDF?

No. Flattening is permanent. Always keep a backup of the original file before flattening.

Does flattening affect text quality?

No. Text and image quality remain unchanged after flattening.