There are several stages to the upload process - Select a License / Upload Design / Select Previews / Upload Other Assets / Descriptions & Categories. These stages are easy to follow so please take time to read through all info as you proceed through each stage.
Files needed for upload process: On Stage 2, you will need a seamless tile that is able to repeat without any faults in JPEG or PNG format. Stage 4, you will need A Layered Photoshop PSD or Illustrator AI/EPS version of the design if its a vector file. You can also add value to you design by adding 'Other Assets'.
These elements are included if the buyer purchases a high priced Extended License. Here you can add different colour ways, Pantone separated artworks, drawing scans & extra elements. Make sure you add these to your description of the design.