I am pretty new to salesforce. We are storing Barcode information in a formula field, and I need a lwc to print a pdf of the barcode from the formula field. I'd appreciate any help, thank you in advance.
There are several parts to what you're asking. Let's unpack it.
PDF generation in Salesforce has traditionally been done using Visualforce and Apex -- see the official documentation. Your LWC can call an Apex method that in turn generates the PDF.
The best solution may depend on whether you plan to save the PDF back to Salesforce (in which case, consider using server-side Apex and Visualforce), or if it will be exclusively downloaded to users' local devices (which might be a good reason to keep execution on the client side, among other considerations).