Azure blob storage and writing to file system

I'm thinking about creating some providers for Azure blob storage. It's good to see that for images, there is an IPictureService interface to implement for this purpose.

Other than the uploading and storage of images, what other operations within nopCommerce write to the file system?

Is there any direct writing to the web.config or other files?

I think you should also check pdf files for invoices

nicolas.muniere wrote:

Do the invoices actually have a file presence? I thought that they were generated on the fly and then served up with the response.

The code uses a file stream :

PdfWriter.GetInstance(doc, new FileStream(filePath, FileMode.Create));