(Plug in introductionWhen uploading pictures, you can add text or picture watermark to the pictures according to your own settings.In the plug-in setting interface, you can set the watermark position, watermark text, watermark text size, watermark text color, watermark type (picture or text) and watermark range.Preventive measures1. The text size in the plug-in settings is the fontsize property of HTML we usually use.2. The text color is #xxxxxx format, such as red: #ff0000, blue: #0000ff.3. If you use image watermark, please rename your watermark image to gvgu_ watermark. GIF and overwrite gvgu in this plug-in directory_ watermark. gif。4. If the above settings are not saved successfully, please make sure that your plug-in directory is dB The permission of PHP file is 777.)