Office Signing

Initialize signer private key and certificate

Key pair

Use site's private key

Use my own key

Import from key store

Signature algorithm

Auto choose by server

OOXML signature property

Data to be signed

Signature Scheme

Digest algorithm

Signature description

Multisignature

If checked, the signature will be added, otherwise all existing signatures will be replaced by the current

Certificate chain

Include entire certificate chain

Visual signature

Visible

XML Signature Scheme

Signing time

Set signing time as present