I have just changed the theme on my blog, and because of a small page width, it breaks the layout. Most of my earlier images (attached in posts) are around 600px in width, and now I need to resize all of them them proportionately to 450px. How do I resize them all at one shot? Is there a plugin for this?
P.S.: Writing a CSS rule is a good option, and I've already done that. But I figure resizing the images would also knock off the download overhead for each page!