Dimensions - 4500x5400. sRGB. 24.8megabites. 300 pixels per inch. PNG file.
All seems correct yet I still get the message "Please upload a valid PNG. " when I try to upload.
Thanks for reaching out. Some common issues are the design isn't quite 4500x5400. Also, the file size is very close the limit, which can sometimes cause an error, so we suggest compressing the file so the size is further below the limit. Hope this helps!