Problem description
An invalid parameter is specified in the watermarking request.
Causes
The value of the image parameter is not encoded in Base64.
Examples
GET /example_image?x-oss-process=image/watermark,image_notbase64 HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Fri, 03 Feb 2023 03:41:49 GMT
Content-Type: application/xmlThe error is returned for the preceding request because notbase64 is not a Base64-encoded string.
Solutions
Specify a Base64-encoded value for the image parameter.