Preparing documents for signature with Docusign and Adobe ESign?

Hi, I wanted to know if there is a way to prepare documents for signature with digital signing methods like Docusign and Adobe ESign with screenreaders? With Docusign signing is straightforward, if prepared by someone else, but when preparing them myself I haven't figured out how to place signature fields where they are supposed to be on the document for others to sign. For Adobe ESign I can't place my signature where it needs to be. Is this a skills issue or are these services not accessible? For reference I use JAWS but do have NVDA as well.