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Sign All Types of Documents
It allows you to sign all types of popular office documents digitally. For instance, you'll be able to quickly sign documents of Microsoft Office, Adobe Acrobat & Adobe Reader, OpenOffice, and LibreOffice.
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Complies With International Laws
Documents signed using Comodo Document Signing certificate comply with various international laws, the U.S. Federal ESIGN Act, and the European Union's and eIDAS.
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Secure
Signing your documents using a Document Signing certificate provided by the CAs (Certificate Authorities) like Comodo is considered more secure than usual e-signatures. Likewise, it provides an encrypted USB token and a password to sign, which works as two-factor authentication.
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No Expiration
Once you sign your document, the digital signature will remain valid till its entire lifecycle, as it never expires. And, if someone tampered with the document at any point, the recipient of the document will get notified. To increase the security, you can use the free feature of the timestamping.
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File Integrity
Once you digitally sign your document or file, a hashing function is implemented with Signing. Likewise, the hashing function also notifies the user if anyone tries to infect a file with a malicious virus or manipulate it, which helps maintain file integrity.
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Signing Key Size of 2048-Bits RSA
The signing key of the Document Signing certificate is of robust 2048-bit RSA, which means you can stay assured that it's not possible to forge the signature. Likewise, even with modern computers of nowadays will take around 6.4 quadrillion years to calculate private key's value.
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Show Your Identity as a Signer
By digitally signing your document using a Document Signing certificate, you're allowing everyone to verify your identity. Likewise, your digital signature on the document is applied using a 2048-bit RSA, which can't be faked.
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Unique Signature
Like ink signature, the document signed with the Document Signing certificate has a unique signature that cannot be faked and helps validate your identity.