FAQ

Q: The link I got when I purchased the product has expired. How can I retrieve a purchased book again?

A: Please use the re-publish link in the email you received at the time of purchase to complete the re-publish process.

Q: I bought it by mistake. How can I get a refund?

A: Please contact support.

Q: After downloading once, is it possible to download again?

A: You can download it as many times as you like.

Q: Do you use DRM?

A: We have plans to use social DRM in the future, but for now we haven't implemented it. We have no plans to use DRM that will prevent duplication, modification, printing, etc. Please feel free to use it as long as you use it for personal use.

Q: Do you issue receipts?

A: Use the receipt issued by Stripe.

Q: Do I need to register my personal information at the time of purchase?

A: Currently, only the email address is taken for notification and identification of the purchaser.