The parameter value exceeds the range. The parameter size, representing the font size of the text watermark, must be within (0,1000]. Illegal values trigger this error code. For example, in https://tos-tools.tos-cn-beijing.volces.com/misc/sample.png?x-tos-process=image/watermark,text_SGVsbG8,size_10000, the size is 10000, exceeding the limit.

Parameter encoding error. The watermark image for image watermarking or the text content for text watermarking requires URL-safe Base64 encoding. An illegal encoded string triggers this error code. For example, in https://tos-tools.tos-cn-beijing.volces.com/misc/sample.png?x-tos-process=image/resize,p_60/watermark,image_==xxx and https://tos-tools.tos-cn-beijing.volces.com/misc/sample.png?x-tos-process=image/resize,p_60/watermark,text_==xxx, the encoded fields ==xxx are not valid URL-safe Base64 strings.

Solution

Use the correct image watermark parameters. For more information, see Image Watermark.

Last updated: 2025.10.11 16:00:27