Scissors Continued enhances WordPress' handling of images by introducing cropping, resizing, rotating, and watermarking functionality.
Scissors Continued is available in the official plugin repository. To make a manual installation, follow these steps:
scissorsfolder to your
Automatic resizing of the full-size image at upload-time can be configured in WordPress' media settings. You can specify a maximum width and a maximum height in pixels for this to take effect (a width/height of 0 disables image resizing in that particular dimension).
Watermarking can also be configured and enabled in WordPress' media settings: Supply an image that you want to be embedded into newly uploaded images, specify its alignment, size, and margin, and you're all set!