![](https://niekdang.wordpress.com/wp-content/uploads/2021/02/abondoned_street_challenge2.jpg?w=1024)
We have a hint:
another hint: dimensions, dimensions, everything is in dimensions.
Then, we think about changing the width and height of the image.
This question from Quora helps a lot.
Open the image with a hex editor and change a little.
![](https://niekdang.wordpress.com/wp-content/uploads/2021/02/image-18.png?w=683)
Then we have a new image with the flag in it.
![](https://niekdang.wordpress.com/wp-content/uploads/2021/02/abondoned_street_challenge22.jpg?w=1024)
Flag: urban_exploration