Just upgraded to CF2016 on a Windows 2016 server. Using CFHTMLTOPDF for the first time and I can't get any image to convert. The PDF created just has a "?" where the image should be. What am I missing? It worked fine before with CFDOCUMENT.
Please check if you are able to get the HTML to print the image. I had trouble getting image display in HTML. I had to put the image into the wwwroot folder. If you can get the image ti display in html browser than add the cfhtmltopdf tag.