関連ワード:  https api qrserver com v1 create qr code / size 150x150&data    https api qrserver com v1 create qr code / size 150x150    api.qrserver.com/v1/create-qr-code    can you resize a qr code    create high resolution qr code  
結果 : https api qrserver com v1 create qr code size 150x150