is a specialized plug-in for Adobe After Effects and Premiere Pro, originally developed by Red Giant (now part of Maxon), designed to upconvert low-resolution footage into high-quality 4K video. Core Functionality
For those still using legacy versions of the software, here is how the original plugin was applied to upscale footage: 03:14 instant 4k plugin after effects
Create a new composition in After Effects and set the resolution to your target 4K output (e.g., 3840 x 2160 for UHD). Instant 4K is a specialized plug-in for Adobe