Aspose Watermark on Powerpoint slides when saved on Android phone

Hi, after saving a powerpoint slide on my laptop and then transferring the file to my Adnroid phone, there is an Aspose watermark that appears. How do I get rid of the watermark?

@logank_at_reclam.co.za

Are you evaluating or using our Aspose.Slides web app or the back-end API? How do you save the Slide on laptop and how you are transferring it?