There are situations in which it turns out that the watermark image is considerable larger compared to the image that is going to be watermarked. In these scenarios Asido applies watermark scaling. This means that the watermark is resized so its dimensions become some portion of the image that is going to be watermarked. This feature can be turned on and off by using the ASIDO_WATERMARK_SCALABLE_ENABLED and ASIDO_WATERMARK_SCALABLE_DISABLED constants. By default, the featured is enabled, and the scaling factor is taken from the ASIDO_WATERMARK_SCALABLE_FACTOR constant. If you want you can re-define this constant, or just provide a decimal value (0 < scaling_factor < 1) instead. By default, the scaling factor is 0.25 (1/4).
Here you can see the source image, the watermark image, and the result:
You can download the source for this example from here: