What types of file formats are compatible for lease upload? April 14, 2020 23:08 You may upload either a PDF or Word document. If your file is not loading, check to ensure it is under 100 MB in size. Related articles If I list a property on Zillow Rental Manager, am I required to use Zillow’s lease tools for my lease agreement? Can I sign an online lease agreement using an existing lease, rather than a lease created through Zillow? Can I upload and sign my own lease? How much does it cost to create a lease online? Where are leases available?