The -UPD- (2025-2026) generation of free online SSL tools now allows you to embed a JPG inside a newly generated PFX file. They act as a visual signature or brand identifier, which is likely what you actually need.
base64 -w0 your-image.jpg > image.b64
Take a clean photo or scan of your handwritten signature and save it as a JPG . Jpg To Pfx Converter Online Free -UPD-
New tools no longer send your JPG to a server. Everything happens in your browser. This means your private key never leaves your machine—critical for security. The -UPD- (2025-2026) generation of free online SSL