Hi JHRMG,
Thank you for reaching out.
As mentioned above, you do not need Acrobat Sign for signature. If you are referring to adding the signature to a document, you can avoid using Acrobat Sign.
In Acrobat, there are two options for signing a document: the Fill & Sign tool and the Digital signature tool. As you do not wish to use the certificate, you can use the Fill & Sign tool. Please refer to the steps suggested in the following help document: https://helpx.adobe.com/acrobat/using/fill-and-sign.html.
Would like to inform you that Acrobat Reader and Acrobat both have the same signing options.
If you are referring to something else, please share some examples as screenshots for better understanding.
Let us know if you have any questions. We will be happy to answer those.
Thanks,
Meenakshi
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