PKI is the trust system behind your website’s padlock, your signed contracts, and your verified business email. Here’s how public and private keys work, the components of a PKI system, and why it matters for your business
A PDF can contain multiple digital signatures, applied sequentially while preserving the validity of previous signatures as long as no unauthorized modifications occur. This process uses incremental signing, ensuring document integrity and creating a verifiable audit trail. Multiple digital signatures are legally recognized in India under the Information Technology Act, 2000.
Can a digitally signed PDF be modified? Learn what happens if a signed PDF is changed, how signatures detect tampering, and when changes are allowed.