PDF Flattener
Choose a PDF with fillable AcroForm fields, review the destructive re-save warning, and flatten its form appearance in your browser.
Warning: this creates a destructive re-save. Form fields become non-editable. Signed, encrypted, damaged, and unsupported PDFs are rejected.
Download flattened PDFA QUICK WALKTHROUGH
How to use this tool
- Choose one PDF up to 50 MB and 200 pages.
- Confirm that fields will be flattened and signatures, encryption, and damaged PDFs are unsupported.
- Flatten and download the new PDF.
Limited form flattening
This writes AcroForm field appearances into the page and removes those controls. It does not promise to flatten every annotation, comment, JavaScript action, or XFA control.
Destructive re-save warning
Flattening changes the document structure and may remove field editability. Signed, encrypted/password-protected, malformed, and unsupported PDFs are rejected.
GOOD TO KNOW
Common questions
Are all annotations flattened?
No. The contract covers interactive AcroForm fields only; other annotations are not guaranteed to be flattened.
Can I undo flattening?
Keep your original file. Flattening creates a new download and removes form editability from that output.
Is my PDF uploaded?
No. PDF reading and flattening happen locally.