Magazine Subscriptions - Physical and PDF

Im looking into a shopping cart solution for my website which will be offering subscriptions to magazines (both 6 months and yearly). We want to find out how/if this can be implemented through ZenCart since we want to offer the issues both as physical items and as PDFs.

For the digital option, how would one get Zencart to send out the PDFs to subscribed users each month?

For the digital option, how would one get Zencart to send out the PDFs to subscribed users each month?
That will require custom code to make automatic

kobra:

That will require custom code to make automatic

If that is the case, what would be the best solution in lieu of there not being an add-on of this kind currently available.

If that is the case, what would be the best solution in lieu of there not being an add-on of this kind currently available.
There is a link for those that require custom code to be developed in the Recommended Services link