Writing a letter in Adobe InDesign is easy when using various readily-available, free online resources. As of 2015, the latest versions of InDesign, which are CC, CS5 and CS6, include a wide variety of graphic design templates that come preset with proper formatting appropriate to the letter type and audience. While InDesign comes loaded with only the design elements of a letter, help with choosing the right wording for the letter are available online for free.
In addition to the templates that come loaded in the Adobe InDesign program, letter design templates and sample letter wording ideas are available on plenty of websites. While many of these templates and sample letters are available to be downloaded for a price, a Google search for "free InDesign letter templates" and "free sample letter wording" typically yields sufficient results. Simply select the appropriate template for the type of letter you plan to write, such as a cover letter or business collection letter. Once the design is determined, you can find a variety of free sample letters on the Web to help with wording for the specific occasion or job at hand. Several good sample letters for various subjects are available at WriteExpress.com, including ones for job applications, authorizations, notifications and social events.