Since Shopify is handling the file upload, the file upload sizes may be prone to changes. Based on our tests and user feedback, the maximum file size you can upload to Shopify is around 20 MB per file. The maximum image dimensions supported are 4427 x 4472 pixels.
The app supports all types of files. Thus, you can upload any file type whether it’s jpeg, jpg, png, etc. Since this is handled by Shopify, the file gets converted into .webp regardless of the file type you upload.
All images or files will reside on Shopify's servers. A link is automatically generated to the file location. A downloadable link will appear in the cart and the email confirmations.