The ZIP files must be unzipped before you can upload your images. You can then upload the individual image files in our product designers on our website.
The following file formats can be uploaded and used to design your products: JPEG, PNG, HEIC/HEIF, WEBP, BMP, TIFF, PDF.
If you have questions about this topic, before you place your order, please contact our team at service@myposter.com