Scissors enhances WordPress' handling of images by introducing cropping, resizing, rotating, and watermarking functionality.
Scissors is available in the official plugin repository and can be installed directly from the WordPress administration interface. If you wish, however, 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!