- Videos: MP4, WebM or MOV, up to 2 GB. MP4 (H.264) plays everywhere.
- PDFs: up to 100 MB.
- Audio (free resources): MP3, M4A or OGG, up to 500 MB.
- Cover images: JPG, PNG or WebP, up to 5 MB. A 16:9 image looks best.
Files go straight from your browser to secure storage. Keep the page open until it says Uploaded. A video's length is read automatically.
If an upload fails, check your connection and the file type, then try again. Very large videos upload faster if you export them at 1080p or lower.