There are two methods of exporting PDFs both out of Apple Photos and Mimeo Photos.
Apple Photos Project PDF Export
This process is used for creating print-ready PDFs of your Apple Photos Project to order through our import site.
Note: This method is only used for Apple Photos Projects that have not or cannot be converted to Mimeo Photos.
Find out how here: How do I use the Apple Photo Project Ordering Service
Mimeo Photos PDF Export
This process is used for creating view only PDFs for proofing your project and sharing with friends, family or co-workers. This PDF will be emailed to you upon request.
Find out how here: Export Mimeo Photos PDFs