secure pdf signatures 4

https://kilo-wiki.win/index.php/Why_the_Digital_Signature_USB_Token_Still_Matters_for_Remote_Signing

Secure PDF signatures use cryptographic methods to ensure that a document hasn't been altered since it was signed. When you apply a digital signature, it's tied to your identity through a certificate, making it far more trustworthy than a simple scanned signature. This is especially useful for legal contracts, official forms, and any sensitive documents where authenticity is critical. The signature itself is visually represented in the PDF, but the underlying security is what really matters, be…