You can add watermarks to images by overlaying another image on top of your main image.
Filestack has a limit to how large the images it will accept for conversions can be. The maximum accepted image size is 100,000,000 pixels, so an image with this many pixels could have width and height combinations like 10,000 x 10,000 or 5,000 x 20,000, etc. There is also a file size restriction. Filestack will not process an image that is larger than 256mb. Please contact us if you require the ability to process larger files than our current limits.
||The Filestack handle of the image that you want to layer on top of another image as a watermarkto resize the image to.This parameter can be abbreviated to
||The size of the overlayed image as a percentage of its original size. The value must be an integer between 1 and 500. This parameter can be abbreviated as
||The position of the overlayed image. Possible values for position are: top, middle, bottom, left, center, and right. These values can be paired as well like
Image with watermark using default settings (center position with a size of 100%). It is always best to use high quality images for watermarking:
Image with watermark using the default center position and a
Image with watermark using a top right position and a size of 200%,