You can upload your own logo.  Your logo will be printed on your invoices.  CaseFox supports PNG, JPG, JPEG file formats, size should be less than 250x125 pixels (there is no strict requirement as to the size, however, bigger picture may not appear proportional on invoices).  To upload your logo, visit "Settings/Tools/Reports" and then choose "Upload Logo" link.  After uploading your logo, click on any of your invoices and view if the logo is appearing correctly.  If a change is needed, you may adjust the logo picture file and upload again.