For a video format to support Alpha Channels you need at least 8 bits per channel and four (4) channels for a total of 32-bits. Compressed formats are 8 bit color per channel for a with a total of 24 bits. Quicktime JPEG 2000, Cineware - free from GoPro, and several other formats support alpha channels. Best for graphics without color complexity or gradients. GIF (Graphic Interchange Format): Index file with the potential for transparency. PDF supports massive amounts of transparency depending on the version. PDF (Portable Document Format): PDFs are a staple for Print and online documents. It can be both Raster and Vector and be used for Print and Web. SVG (Scalable Vector Format): SVG files are a modern day sensation. This format is best for graphics and videos with high complexity in color. PNG (Portable Network Graphics File): PNG was made for transparency on web, however, it is used quite a bit in video as well. Of course there are other formats, but these mezzanine or intermediate/smart codecs are some of the best for ongoing editing. MOV/J2K): For Offline/Online Video Editing MOV/Animation): For Offline/Online Video Editing MOV/PNG): For Offline/Online Video Editing MOV/Prores 4444): For Offline/Online Video Editing MOV/DNxHD/HR): For Offline/Online Video Editing Quicktime (.MOV/Cineform): For Offline/Online Video Editing. ![]() If you want transparency, for web or editorial, here are your best options: CSS, Flash and HTML 5 Video which have been used to trick transparency for MP4 files have been used before. Just as a side note, there are very few acceptable video files with transparency for web. ![]() Exporting your files into this format will be completely flattened. MP4 in it's current variation and format cannot have transparency at all.
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