This document will guide you through configuring your personal certificate to digitally sign documents on Windows.
Before you start signing or encrypting documents, you should make sure that you have downloaded and installed your certificate.
Download Instructions:
Installation Instructions: [Link for document 69131 is unavailable at this time.]
Create your document, spreadsheet or presentation, make sure it is saved.
When ready to digitally sign it, click the File tab from the top left of your screen, choose the Info tab from the left, click the Protect Document icon and choose Add a Digital Signature.
If you haven't saved your document, a window will open asking you to save. Click Yes.
Enter a Commitment Type and a Purpose for signing and click Sign.
Click OK to return to your Office application. The document is now marked as final and you will not be able to edit the document unless you hit the Edit Anyway button. If you choose to edit the document after the signature has been applied, the signature will be removed.
You will need to add the AddTrust External Root Certificate before you can validate digital signatures from UW Digital ID in PDF documents.
Download the AddTrust External Root Certificate: AddTrustExternalCARoot.cer
Open Adobe Acrobat XI Pro and go to Edit > Preferences.
Navigate to Signatures in the left-hand sidebar, then click More... under Identities & Trusted Certificates.
Navigate to Trusted Certificates and click Import.
Click Browse and select the AddTrustExternalCARoot.cer file. Click Open.
Select AddTrust External CA Root under Contacts, then the certificate under Certificates. Click Trust.
Check Use this certificate as a trusted root and click OK.
Click Import.
Once you see the following screen, you've installed the AddTrust certificate and Adobe can now successfully validate your UW Digital ID.
Open the document you wish to sign.
Click Sign in the upper right, then click Work with Certificates > Sign with Certificate.
If you see this window, click Drag New Signature Rectangle.
Drag an area on the document to apply your signature to.
Select your UW Digital ID. Be sure to select the Digital ID issued by Comodo. Click Sign.
Specify the location to save your signed PDF and click Save.
Open the document you wish to encrypt.
Click Tools in the upper right, then click Protection > Encrypt > Encrypt with Certificate.
If you see this window, click Yes.
Click Next.
Select your UW Digital ID, making sure to select the Comodo certificate. You can specify if you want to always use your selected Digital ID. Click OK.
Click Next.
Click Finish.
You will need to add the AddTrust External Root Certificate before you can validate digital signatures from UW Digital ID in PDF documents.
Download the AddTrust External Root Certificate: AddTrustExternalCARoot.cer
Open Adobe Acrobat Reader DC and go to Edit > Preferences.
Navigate to Signatures in the left-hand sidebar, then click More... under Identities & Trusted Certificates.
Navigate to Trusted Certificates and click Import.
Click Browse and select the AddTrustExternalCARoot.cer file. Click Open.
Select AddTrust External CA Root under Contacts, then the certificate under Certificates. Click Trust.
Check Use this certificate as a trusted root and click OK.
Click Import.
Once you see the following screen, you've installed the AddTrust certificate and Adobe can now successfully validate your UW Digital ID.
Open the document you wish to sign.
Click Tools > Certificates > Digitally Sign
If you see this window, click OK.
Drag an area on your document to apply your signature to.
Select your Digital ID to sign with. Be sure to select the certificate issued by Comodo.
Click Sign.
Specify the location to save your signed PDF and click Save.