Hi Alex,

I tried to replicate your issue here by using our sample with custom css. However, it can be exported normally but not all style will be applied in exported file. This issue happen because the limitation from ActiveReports. Also please notice, if you're using cssClass property in our WebScheduler or override the style with css, it couldn't be exported to pdf file. Could you help us to provide simple sample that can replicate this issue in our local end? Could you try to use our sample then apply your css in that sample and please let me know if this can replicate your issue in your local end. Look forward to hear any feedback from you so I can help you further.

Regards,
Bernard