Letterhead
Postful lets you upload your letterhead and automatically print every letter you send on your own letterhead.
Step 1
Click the link for letterhead on your home page under Account options.
Step 2
Select the PDF file to use as letterhead.
Step 3
Adjust the margins of your letterhead. You can print over images on your letterhead for watermark-style effects.
Step 4
Be sure to check the preview on the first letter you send after setting up letterhead just to make sure the results are what you expected. After that, every letter you send goes out on your personal letterhead!