Is Lumin: PDF Editor, Edit, Sign, Merge, Share and Print PDFs safe?

Clean risk

Legitimate PDF viewer extension with a postMessage handler that has insufficient origin validation for iframe communication, though exploitation risk is limited by the legitimate business relationship with sign.luminpdf.com.

lumin-chrome-extension-adminv5.1.9Chrome Web Store
0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Updated 21 May 2026dbkidnlfklnjanneifjjojofckpcogcl