Hello @RobertD214. Thanks for coming into the Community! Constant Contact accepts many different file types when uploading contacts, including Excel. For your mailings, you are able to easily create an email from a PDF when using our third-generation editor. If you did wish to do this, I would also suggest inserting some text as well since the PDF would be inserted as an image and image-only emails can get picked up by spam filters. Hope this helps!
... View more