secure pdf signatures 3

https://thesignpdfremotelylife.ironwoodscope.com/posts/how-to-sign-pdf-remotely-without-moving-your-private-keys

Secure PDF signatures use cryptographic algorithms to verify the identity of the signer and ensure the document hasn't been altered after signing. They create a unique digital fingerprint that's tamper-evident, so any changes invalidate the signature. It's like a tamper-proof seal for digital contracts.