VAST File Recommendations
Using AdButler's VAST video ad format, we recommend uploading alternate file formats and resolutions to ensure maximum compatibility with common VAST-compatible video players. Including multiple file formats, resolutions and aspect ratios means the widest range of players will find a compatible file to play.
To upload additional VAST files to your ad item in Adbutler, use the button at the bottom of the ad item setup form.
Recommended Name Format
When naming your media creatives, before uploading to AdButler, be sure that you have chosen a compatible name format, and eliminate "&", ";" or "%" characters in your file names. We recommend that you use camel case, include the size, and seperate important info with an "_". For example: "FallFishingPromo_640x480.mp4".
VAST File Format and Resolution Recommendations
Resolution and Aspect Ratios
Include enough options to allow video ads to render in any sized player. Include a range of high, medium and low quality options and cover the 3 common aspect ratios: 4:3, 16:9, and 5:2
Video: For maximum compatibility include both H.264 (MP4) and WebM formats
Audio: MP3 or AAC
Recommended: Less than 3mb
Maximum: 60 seconds
Maximum: 30 FPS