Enabling Invoice Downloads for Users in Shopify App

[Ridzz]

Hi, 
I'm developing a Shopify app with a subscription plan and I want to retrieve and display all Shopify invoices within my app. This would let the users to conveniently download their invoices directly from our app interface. 
Can someone kindly assist me in determining if it's feasible to implement this functionality, and if there are APIs or methods available with Shopify to allow users to retrieve and download their invoices directly from our app?

[Ridzz]

Hi,

I'm reaching out again to follow up on my inquiry regarding the availability of an invoice download feature within my app. I've been exploring for options but haven't been able to discover a suitable solution for enabling invoice downloads.
It seems that invoices can only be accessible through Shopify's admin settings and email. Could someone kindly confirm this for me?