PDF Video Embedding-The document contains image masks error.

Hi, Im trying to embed a video within a pdf and receive an error message saying the "The PDF document contained image masks that were not down sampled." The video has been compressed as an .mp4 and has a final size of 200MB. I've also tried a version that has a reduced file size of 17mb but this still gets that same error message.

Any help on this would be greatly appreciated.

Thanks

Ben