Use Gimp as a photo and image editor. I haven't touched Photoshop in a couple of years. Even when I was using Windows I stopped using Photoshop because I didn't want to hack it.
There are different ways to modify images in bulk, in bulk, in batches or bulk, whatever we want to call it. But this Gimp extension seems indispensable to me. Allows us scale images, add watermarks, rotate them, change the format, reduce the weight and many other actions that we will do in bulk and in a very short time. You will not believe the amount of time you are going to save.
I use it mostly to edit the images of blog articles. I size them right, add the watermark, and reduce the weight in seconds. But I see it useful for many people besides Webmasters, photographers who want to add watermarks. Or if you are looking to resize multiple photos or images at the same time.
I have changed my methodology. Now to add watermarks I use a Bash script. I leave everything explained here.
I leave you first what it does and then how to install it in case you are interested.
