Renaming drops extension

I'm trying to setup a simple rename:
It renames to the date created, but the extension (which was .pdf) gets dropped. I tried changing (extension) to .pdf, and it still just gets dropped. I thought maybe it was there but invisible (even though Finder is set to show all extensions) and added a second step to toggle the extension to visible, and it made no difference.
What am I doing wrong?
Edit: I changed the (extension) setting from no change to lowercase, and now the extension is preserved. Weird.
- Code: Select all
Name starts with "Scanned Document"
Rename with pattern: (date created)(extension)
It renames to the date created, but the extension (which was .pdf) gets dropped. I tried changing (extension) to .pdf, and it still just gets dropped. I thought maybe it was there but invisible (even though Finder is set to show all extensions) and added a second step to toggle the extension to visible, and it made no difference.
What am I doing wrong?
Edit: I changed the (extension) setting from no change to lowercase, and now the extension is preserved. Weird.