Adobe Acrobat Sign encrypted document forgot password

Hi Richard262839247t7s,

Thank you for reaching out. 

If the document was signed using Acrobat Sign, the password cannot be changed. There is no option in Acrobat Sign to change the document password. For more information, please refer to the following help document: https://adobe.ly/44bJSmH. 

Let us know if you have any questions. 

Thanks,

Meenakshi