We have several thousands of PDF files in our CMS environment and until now, we did not have a specific Media Type for these files. Now we have created a type for PDFs that contains all the properties of the GenericMedia type and some additional properties but we need to figure out a way to convert the existing PDF files to the new type.
I found this article which addresses pretty much the same scenario but I'm wondering if there's a better way than manipulating the DB directly?
https://robertlinde.se/episerver%207.5/mediadata/plugin/2014/05/01/converting-mediadata-contenttype-in-episerver-75.html