@Byron Byron_756 We have a workaround; you don't need to reinstall the Add-on component. Please contact us at cfsup@adobe.com.
The new errata posted on "ColdFusion (2023 release) Update 13 release notes"
("ColdFusion is unable to register PDFg service manager") does not work for my installation. (thank you @Vikram_Kumar_M for the customer support on it though!)
What worked for me
Uninstall htmltopdf
Stop cf and addon services
Uninstall addon service (mine was installed in jetty, so I used the uninstaller there)
Clear felix-cache
Run the proper addon service installer for my CF version that I downloaded fromhttps://helpx.adobe.com/coldfusion/kb/coldfusion-downloads.html#download0
It was in the developer tools section. (thank you @BKBK !)
Told addon installer to install to the jetty location, and use to same java location as what my CF uses
Start CF and Addon services
Reinstall htmltopdf
Update and Enable the pdf service manager (the enable step is easy to overlook, button is very tiny, and htmltopdf will fail if not enabled!)