If WebP is central to your workflow, consider switching to a Digital Asset Manager (DAM) with native WebP support, such as:
# Use ImageMagick to convert if not os.path.exists(proxy_jpg): subprocess.run(['magick', full_webp, '-quality', '90', proxy_jpg]) thumbsplus webp
The Digital Archivist’s Dilemma: ThumbsPlus and the WebP Revolution If WebP is central to your workflow, consider
Your version lacks the encoder. Upgrade to ThumbsPlus v11 or use the libwebp plugin method described in Part 4. Alternatively, save as PNG/JPEG first, then use a free tool like cwebp (command line) post-process. save as PNG/JPEG first