There's nothing to download (except the free Acrobat Reader DC). What happens when you try to use it?
As per the description above, you are not able to use the Adobe PDFPack subscription, is that correct?
As Aandi correctly mentioned that you can download and install the free desktop version of Adobe Reader DC to access the services of Adobe PDFPack.
You can also access the services through the URL https://cloud.acrobat.com/convertpdf with your Adobe ID and password on a browser like Chrome, or Firefox, or Safari.
As mentioned earlier by Aandi, download and install Adobe Reader DC Adobe - Adobe Acrobat Reader DC Distribution
just "sign-in" with your current Adobe ID and password in Adobe Reader to access the services.
For more troubleshooting, you can refer to Troubleshooting Create PDF, Export PDF, Adobe Send, Fill & Sign … services(PDFPack or Document Cloud...
Feel free to update this discussion for any further assistance.
Got it and it is working. Thanks for the help.
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