Users who select a "Business" or "Teams" plan during the signup process can often access a longer 14-day trial period. How to start your trial: Visit the official InDesign free trial page . Select your preferred plan (Individual or Business).
If you're a student or teacher, you can get Adobe InDesign for free through the Adobe Creative Cloud for Education program. This program offers free access to Adobe Creative Cloud, including InDesign, for students and teachers. To qualify, you'll need to provide a valid school email address and proof of enrollment.