上传图片加水印出错“Invalid 5th argument, must be a long in”

错误提示:
Persits.Jpeg.1 error '800a0009'
Invalid 5th argument, must be a long integer.
Persits.Jpeg.1

解决办法:
1、看水印组件是否正常
2、水印图片去除底色功能不能为空

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