HEY Post finders I can give you a better letterhead design for your office and organization with good rates and you can simply check out my Offer on this I hope and will give you my 100% and try to overcome your dream design into my adobe skills and present you with the best thing. Following are the size of letterHeads like A4, landscape portrait, etc letter Head size 1- 11 x 8.5 inches [landscape] 2- 8.5 x 11 inches [Potrait] This will charge 10$ for one design of it and any format you want PDF, Print Ready Ai.file.You can check the portfolio attachment if you have a design in your mind just share or have some file like png pdf etc attached when you ping me on PPH and the price is above mentioned if you have query related to it then contact me on [People per Hour] platform