This second answer is for users of ConfTool who use a local installation.
Per default, the logo for invoices, confirmation letters and statements is justified to the right. You just have to upload a GIF file "logo-invoice.gif" or a PNG file "logo-invoice.png" to the public (htdocs) directory of ConfTool to place a logo there.
The maximum size allotted for the logo in ConfTool is 640px*80px, smaller images will be aligned to the right, above the sender address. Logos larger than this size will be automatically downsized to fit the space.
To have a centered or left aligned image, use a full-width white image and place the logo in the center or on the left on this background, i.e., use your graphical software to change the position of the logo, keeping the total width of the image.
To increase the quality of the printout, we encourage you to use an image with twice the resolution of the normal logo, i.e., with 1280px*160px. It will be downsized automatically in ConfTool and thus have the appropriate resolution for a hardcopy printout.
You can user our templates to simplify the process (see image 1).
Please note that the file must be saved as a 256-color GIF file as "logo-invoice.gif" or PNG file as "logo-invoice.png".
See image 2 as example for an invoice logo that has been aligned to the left-hand side.