Format: .PNG with clear background, most 300kb

YouTube video participant specs:

Really helpful sizes: Minimal of 1280 x 720 pixels (16:9) or 640 x 480 pixels pixels (4:3) is beneficial. 

Minimal dimension: 426 by 240 pixels

Most dimension: 3840 by 2160 pixels

Supported side ratios: 16:9 and 4:3

Really helpful specs: .MOV, .MPEG4, MP4, .AVI, .WMV, .MPEGPS, .FLV, 3GPP, or WebM, most file dimension 128GB, most 12 hours lengthy

Suggestions: YouTube encourages its customers to add movies which might be “as close to the original, high quality source format as possible.” Movies ought to be uploaded in their native side ratios, and will by no means embrace letterboxing or pillarboxing bars, since YouTube “automatically frames videos to ensure that they are displayed correctly, without cropping or stretching, regardless of the size of the video or player.”