PDF/PPTX (Document) Upload Support via HeyGen API

Hi HeyGen Support Team,

From reviewing the official API documentation, particularly the /v1/asset (https://upload.heygen.com/v1/asset) endpoint, it appears that uploads are limited to media files such as images (PNG, JPEG), audio (MP3), and videos (MP4, WebM), with no mention of support for PDF or PPTX files. However, I noticed that the HeyGen web platform allows PDF uploads for converting documents into video presentations.

Could you please confirm whether uploading PDFs or PPTXs is possible via the API? If not currently supported, are there any workarounds, alternative endpoints, or plans to add this functionality in the near future?

Thank you for your assistance. I look forward to your response.