To get started with letters using HTML, you've reached the right page. If you're looking for Inkit's Send API, visit our Docs.
Letter Address Placement
By default, Inkit selects the top_first_page, meaning Inkit will print address information at the top of the first page you've provided. Our US Letter Templates on Github show how this will impact your design.
If you select insert_blank_page, a blank address page is inserted at the beginning of your file. This blank page will be a stand-alone, one-sided cover page. An additional charge will be applied for the extra page.
The letter address placement has the following dimensions: 4.625 in w x 3.25 in h, placed 0 in from the left edge and 0 in from the top edge.
Inkit's Send product's US-sized letter includes its own margin area. It's important to account for this margin area during the letter creation process.
For an 8.5” x 11” Sheet, the safe zone to include text is 8.4375” x 10.9375”, leaving a 1/32” margin on both sides. There is also a small bar code on the bottom left-hand side of the page used to identify pages.
A return address is required for letters. You can update your return address under your account settings.