Requesting Signatures

I want to send a pdf with my signature and obtain the signatures of others. So, I click on "Fill & Sign". I select a pdf file and click on "Continue". After adding my signature, I click on "Next". In the "How do you want to send your file?" box the only options I am given are "Get a Link" and "Send a Copy". There is no "Request Signatures" option. What am I doing wrong?