#EXIF EDITOR KALI HOW TO#

In this screenshot we see metadata from both the camera that took the picture as well as GIMP as I used it to edit the image. Since metadata has no effect on the actual pixel data of the image, you can easily change it without damaging anything.

I started with what I figured would be the easiest thing to find: metadata. I used the hex editor known as FlexHex to do this.įirst I opened the one JPEG that I had. That means figuring out how something is built by making small changes and seeing if you break anything. I used a method of reverse engineering that I like to call the trial-end-error method. The next step is obvious: Open the images up in a hex editor and start poking around. For now, basically all I have is the compressed version of an image, and I have to alter that somehow without corrupting it and without changing its visual appearance.

#EXIF EDITOR KALI HOW TO#

I could download a steganography program to do it, but I tend to want to figure out how to do those things on my own. This of course poses an interesting question: How do you change the contents of an image without changing its visual representation on the computer screen? I could borrow methods from steganography, where you decompress an image so you can access the actual pixel values, and then change the lowest-order bits in the red, green, and blue channels of each pixel, but I don’t know enough about the image formats in question to be able to do that intelligently. One creative way I’ve thought of to get around this problem is to delete the images from my site and then upload modified versions of the images that look exactly the same visually but are not the same file. In the case of images, if I have them uploaded for a draft but I don’t post them until several days later, Google might refuse to index the images because they’re not new. One problem that I want to solve is Google’s penalizing of duplicate or old content. This research basically consists of searching for my own pages on Google to see what’s been indexed and how the pages rank. So recently I’ve been doing some SEO research for my site.

Exif editor kali