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This wiki page has an attachment for how to place a signature in AcrobatÂ
Trusting the UT Austin Intermediate Certificate To Allow For
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Success Validation of UT Employee Signed Documents
When someone uses their UT assigned digital certificate to sign a document by default new installations of Adobe Acrobat/Reader will not trust the signature which will result in a warning being displayed when people open up the signed document and verify the authenticity of the certificate used to sign the document. This happens because the certificate company that UT uses for their certificates is not currently built into and trusted by Adobe Acrobat/Reader. So you have to manually trust at least one of the parent certificate in the certificate chain used to generate UT employee digital certificate. This manual trust has to be done on a per-user account basis so if you have multiple users on a computer, each user account will need to go through the process of trusted the parent certificate. You can either manually open up the Adobe Trust Manager in Adobe Acrobat/Reader, select the parent certificate and select the option to "trust" it OR do the following:
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