roz to pdf conversion is typically searched by users looking for a way to export aSC TimeTables data (.roz) to PDF format, so they can share/print it with others. Unfortunately, this seems to be only possible with the original software (with the print preview function) which is usually used by schools and other education institutions.
You can try out the trial version, but it leaves a watermark on the exported files.
Updated: September 6, 2023