Why Instagram works for digital products
A digital product has no stock and nothing to ship: once it exists, you can sell it as many times as you like. Instagram brings the audience and the intent. What is missing is a clean place to take the money and hand over the file. That is what your link page is for.
Instead of trading DMs to send a file after every single sale, you automate it: the buyer taps your product block, pays, and gets the download link right away.
Putting your file on sale on your page
On Lynks.Pro, add a digital product block to your page: upload your file, set your price, write a short description. Once payment goes through, the buyer automatically gets the download link. Delivery is handled for you.
The money comes to you directly, with no commission taken by Lynks. All that is left is putting your Lynks.Pro link in your bio and talking about the product in your content.
Presenting your product so it actually sells
A good product block says plainly what the buyer gets, at what price, and what it does for them. A well made cover image helps a lot, and you can build one with the free tools (text on image, resizing to the right format).
Add a call to action in your stories and captions, and pin a post that explains the product. A digital sale turns on clarity at least as much as on the file itself.