Shahjada

You may use any of the payment methods from here:
https://www.wpdownloadmanager.com/downloads/payment-gateways/

We prefer stripe:

Stripe

Here in premium package, license key and their uses is controlled by license level configuration, where can set usage limit, a product can have multiple license level and different usage limit. Like we are doing with wpdm pro license or any other similar software. However, it looks like your use case is different.

So, here is my solution for your use case.
You can use “wpdmpp_payment_completed” action hook, which triggers immediately after payment has been completed for an order.

You can use this hook to detect when payment has been completed and add an order note with the order with the generated license keys ( from your own source ) using the following function:

\WPDMPP\Libs\Order::add_note($ORDER_ID, array('note'►'Your license keys here','by'►'Admin', 'email' ► 1, 'customer' ► 1));

yes.

check here:
https://pipstrend.com/download/%d9%85%d9%84%d8%ae%d8%b5-%d8%a7%d9%84%d8%b4%d9%85%d9%88%d8%b9-%d8%a7%d9%84%d9%8a%d8%a7%d8%a8%d8%a7%d9%86%d9%8a%d8%a9-pdf/

You need to configure it.

Using Premium Package

Yes, you can add adsense using custom template tag option:

paypal is working fine now.

Here it is:

within the next week.

You don’t need woocommerce, you simply need to add price in “Prices & Discounts” tab ( https://prnt.sc/VMAbhIr9pOkJ ) and configure payment option from Downloads ► Settings ► Premium Packages ► Payments tab

https://prnt.sc/I_PrlzWHSI99

Now wpdm asset manager has pagination and file search option to handle such large number of files in the same folder. However, we also have noted your suggestion and shall do some research on it.

Email template for signup request approval/decline will be available from the next update

Checking again.