Being A Nerd Pays Off

I work in an office and we have an issue with a client. We haven’t received a payment, so he sends me proof of payment. I contact the bank, but they can’t find the transaction listed. 

When I talk about it during a coffee break, a coworker I barely know and who just started asks if she can see the proof of payment. I don’t know what she can do with it, but since it’s a very large sum, I grasp every straw I can get. 

She takes one look at it, and within ten seconds:

Coworker: “This has been faked.”

Me: “What? Huh? What do you mean?!”

Coworker: “This screenshot has been edited.”

She looks nervous and uneasy, but she points at the big bar on the top.

Coworker: “This bar is missing a few pixels; here, it doesn’t match up. This description is a different font from the rest of the text here. And this zero is slightly lower than the other numbers. There’s also a slightly different hue of white here and here. If you move a bit over here, you can see a few digital brush strokes.”

Me: *Baffled* “How did you spot that?!”

Coworker: “I… ehm… I used to do art on the computer. Pixel art… eh, game sprites. Just for fun. It’s kind of… my thing.”

I don’t get why she was embarrassed but I didn’t press that any further. She saved us a lot of money!