Is there a way to resize how big an image appears on the board here without directly going to the source image and resizing it (or resizing the image and reuploading it)?

Thanks!

I don't know of one offhand, no. You can put it in a spoiler block to hide overly large images, but I think that's it at the moment.

Cool, thanks!

The boards auto resize images larger than a certain size down to a set dimension.... so you dont have to worry about posting something massive.

Unless you're trying to make something larger?

No, the set dimension is big enough that it stretches the post box in my default browser window size. I'd like to be able to set it to 500 without changing the original.