How the renaming works
Each file is copied into a ZIP archive under a new name built from your pattern, with {n} replaced by its position in the list. The image data is untouched and the original extension is kept, so nothing is re-encoded.
Naming that stays sortable
- Use a descriptive prefix:
product-photo-{n}beatsimg-{n}when you come back in six months. - Lower case and hyphens are the safest choice for files that end up on a web server.
- Avoid spaces and accented characters in names destined for URLs.
- Descriptive file names are a small but real SEO signal for images.