Hi @Toni_Gruenwald ,
Welcome to the community!
There are few ways you can add a link to a document in dropbox.
1. You can use Dropbox power-up and add your document
2. By adding attachments to a card
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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