Admin users can configure the branding used on the Desktop, this makes it possible to change the Company Name , Logo , Small Logo  and Email signature .
Go to System > Admin > Branding 
The Logo , Small Logo  and Email signature  will be automatically resized to 400x250 (400pixels wide / 250pixels heigh) when uploaded, to avoid the image becoming distorted it is advisable to upload either an JPEG or PNG file that matches these dimensions.
- Company Name: This is applied to the Login screen
- Logo: This is applied to the PDF Reports from Payments
- Small Logo: This is applied to the Login screen
- Email signature: This is applied to emails sent from the system
When done click the Save button .
Use a PNG file type if you wish to have a transparent background on the Logo or Email signature.