Enter your company name, tagline and contact details, pick a layout and accent colour, and optionally type the letter body. Check the page preview, then press Print.
Yes. There is a body text area, so you can compose the whole letter and print a finished document. Leave it empty instead and you get a blank letterhead sheet to run through the printer and then write or type on.
Centred looks traditional and works for formal correspondence, while the left-aligned layout with details in a right column reads as more modern and leaves cleaner space for a logo. Both keep a footer strip with your contact line.
The generator is text and colour based rather than image based, so it produces a clean typographic header without uploading anything. If you need a logo, print the letterhead onto pre-printed stock or add the image in your word processor.