Identify edited JPEGs with JPEGSnoop

It’s been a few years since we last looked at JPEGSnoop, a low-level tool for investigating images. Is it still useful today? Let’s take a look. The program is as convenient to use as ever. No installation, no adware, just unzip the download and run the single executable. The interface is basic, a tiny toolbar and a few menus, but the first step is simple enough to understand: hit Open and choose an image. Within a few seconds, JPEGSnoop produces a hugely detailed report on your JPEG’s innards. Much of this is so technical -- color transfer functions, DCTs, Huffman… [Continue Reading]