HELP how to get license for CF9

Just want to add, since it was not mentioned that CF9 has reached end of life many years ago. That means it presumably has security holes that are not patched, and will never receive any future security update. You really should not be using CF9 in production anymore (CF2016 & CF2018 are still supported currently).

If your main problem is with the PDF watermark, then use the free tool wkhtmltopdf

I gave an example of wkhtmltopdf usage in a previous forum post: https://community.adobe.com/t5/coldfusion/cfdocument-processing-speedtest-results-and-inquiry/m-p/10704286

You have 3 choices:

- find a cf9 license offered online for sale from a former user

- update instead to a supported cf version, cf2016 or cf2018 (and buy a license from Adobe, a reseller, or a 3rd party) 

- move to Lucee, the 3rd party open source cfml engine 

As for how hard it would be for you to move to Lucee or to cf2016 or 2018, no one can readily say. Some find it takes only hours, some days or weeks, some months. There are many community  discussion resources which one can seek help from others. Some folks give up thinking it's impossible or too difficult, when someone with experience (like myself) might help greatly ease that migration effort. 

Here's a question in closing: why did you or anyone update it to cf9, when that has stopped being supported several years ago? Same with cf 10 and 11,as again the only currently supported cf versions are cf2016 and 2018.

(And to be clear, Adobe only offers installers for cf2018, and only sells licenses for that, not for cf2016. And when cf2020 comes out, the same will be true of cf2018. Finally, note that cf2016 will be supported/updated into 2021, and cf2018 to 2023.)