盲水印

List<PicOperationRule> rules = new LinkedList<>();
// 添加一条将盲水印 rule，处理后的图片在存储桶中的位置标识符为
// examplewatermarkobject
rules.add(new PicOperationRule("examplewatermarkobject",
        "watermark/3/type/1/image/aHR0cDovL2V4YW1wbGVzLTEyNTEwMDAw"));
PicOperations picOperations = new PicOperations(true, rules);

PutObjectRequest putObjectRequest = new PutObjectRequest(bucket, cosPath, srcPath);
putObjectRequest.setPicOperations(picOperations);

// 上传成功后，您将会得到 2 张图片，分别是原始图片和处理后图片
COSXMLUploadTask cosxmlUploadTask = transferManager.upload(putObjectRequest, uploadId);

GetObjectRequest getObjectRequest = new GetObjectRequest(bucket, cosPath, savePathDir, savedFileName);
// 添加文字盲水印
getObjectRequest.addQuery("watermark/3/type/3/text/dGVuY2VudCBjbG91ZA==", null);

COSXMLDownloadTask cosxmlDownloadTask =
        transferManager.download(applicationContext, getObjectRequest);