As per the description above, you want to access the Adobe PDFPack services, Is that correct?
You can access the Adobe PDFPack services through the URL https://cloud.acrobat.com/convertpdf with your Adobe ID and password on a browser like Chrome, or Firefox, or Safari.
You can also use the free desktop version of Adobe Reader to use the services of Adobe PDFPack, just "sign-in" with your current Adobe ID and password in Adobe Reader. Download Adobe Reader from https://get.adobe.com/reader/enterprise/
For troubleshooting, you can refer to Troubleshooting Create PDF, Export PDF, Adobe Send, Fill & Sign … services(PDFPack or Document Cloud...
To know more about Adobe PDFPack services, refer to FAQ | Adobe PDF Pack
Feel free to update this discussion for any further assistance.