Online image editors are handy but they almost universally limit you to a single image at a time. PicGhost can help when you need some quick bulk editing.
You can upload up to 20 images at time to PicGhost for resizing and watermarking. PicGhost offers a drop down menu of preset sizes, the option to set a custom size, or resizing of your image to fit the largest or smallest image in the batch. You don't need to apply a watermark but can do so either as a basic text overlay or with an image you've provided.
After PicGhost resizes your images you can preview the individual files and download them one by one or bulk download them in a ZIP file. PicGhost is free and requires no registration. Have a favourite bulk editing tool? Let's hear about it in the comments.