1,535,022.7 Terabyte PNG?!

So I had a PNG image file that I wanted to scale down. As usual, I opened it in Preview.app, went to “Adjust size…” under the Tools menu, and changed the pixel width to like 500 pixels, with the height changing automatically with the aspect ratio.

That’s when I noticed the rather astounding “Resulting Size” display below:

Ahem.

After a couple of retries just to make sure, I wound up converting it into a JPG first then resizing. I’ve never seen that glitch before. :)

I wonder what would have happened if I’d actually resized it! Would my computer have burst into flames, taking down the Internet with it as it pulled in millions of processing hours attempting to compute the resulting image? We’ll never know!

UPDATE: Unable to resist my curiosity, I tried to resize it, but it just vibrated once and stayed the same size. Anticlimactic! The GIMP resized it without any issues, so I’m assuming it’s a bug in Preview. I will file a bug report with Apple.