Converting WebP to JPG on Windows with no dependencies (and the alpha channel gotcha)

Someone sends you a folder of .webp files and the upload form only takes JPG. You don't need ImageMagick for this: Windows has shipped a WebP decoder since 1809 (as the Store-delivered Microsoft.WebpImageExtension), and WIC exposes it to PowerShell. But the built-in path has two sharp edges I only found by testing them. First: renaming is not... Weiterlesen