PrintMagic Also Avail Design Services for A9 Envelopes and by adding it to the above calculator. Send us your required specifications and we’ll create the custom design from scratch, very unique, and by matching your needs and for brand messaging. Once you approve the custom design, we will get them printed and will deliver them to your doorstep! You can also create personalized no 9 envelopes by using our free print layout templates and get started! The acceptable file formats are PDF, AI, InDesign, and Photoshop. All you have to do is select a template, customize the text, fonts and even add the logo and placement! Voila, your personalized envelope printing is ready.