Reports come with a default logo, but you can change that, as is illustrated in the above screen. Put the .png, .jpg or .gif graphic file with your desired logo in a directory on the application server. In the owareapps\installprops\lib\installed.properties file, alter this property:
Create images that are no taller than 50 pixels, and no wider than 50 pixels. Notice that you must use the forward-slanting slashes, not backslashes as is typical of Windows, if you specify the path.