ZAPTEST allows you automate any UI testing and API as well and after script execution you are able to see the full test report. This report can be opened either HTML or PDF format to select which way to use go to Tools - Options - Result Reporting and select Output format from drop down list. You are able to open latest result both as HTML or PDF report. Simply swich HTML to PDF in the Options (or vice versa). If you will select checkbox "Generate PDF after execution" then pdf report in the separate file will be generated in the results folder.