A document signer certificate, also known as a digital signature certificate, is like a special ID for online documents and messages. It helps to prove that the document or message is real and hasn’t been changed by anyone. When someone uses this certificate to sign a document or message, it creates a special code, called a cryptographic signature. This code is linked to the signer’s identity and the content of the document. If someone tries to change the document after it’s been signed, the code won’t match anymore, showing that the document has been tampered with. This way, we can trust that the document is authentic and hasn’t been altered.

Uses of Digital Signature Certificate:

1. Secure Communication: It makes sure that emails and electronic messages are genuine and not fake.
2. Legal Documents: It allows us to sign contracts and important papers online, and they become legally valid.
3. Government Services: We can use it to sign official forms and applications online when dealing with the government.
4. Financial Transactions: It helps verify that online financial transactions and payments are real and not fraudulent.