If you are a student, you may be eligible for free or discounted access:
If you don't need the advanced engineering tools, the official free version is still highly capable: Drawboard - Real-time PDF markup tools. If you are a student, you may be
: Calibrate pages to scale for linear and area measurements, and use the Protractor for precise angles. If you are a student
You can test the Pro features without paying upfront by utilizing official trials: If you are a student, you may be
: Some institutions provide Drawboard PDF Pro for free to their students. For example, students in Victoria can often access full Pro tools at no cost.