TCPDF error: Not a PNG file: https://npr.brightspotcdn.com/dims3/default/strip/false/crop/2500x1875+0+0/resize/1800/quality/85/format/webp/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F09%2Fe2%2F9f2467c44b4d83977ce269bc6eed%2Fdoge-spot-01.png