1. Click 'download now'
2. Click 'download'
3. Click blue arrow
4. Click photo or title
5. View pattern or use icon to save to another app
Phones, tablets, and browsers will vary.
Note that the 'Download Now' button is saving the file somewhere, even if you don't immediately see it. (Check: Files, iBooks, iCloud, Google Drive, etc.)
If accessible, download on a computer.