Not a solution, just a series of observations that somebody else may find helpful.
The first hint given says:
It'll take a brilliant idea to solve this one. You might even say...
This gave me the idea to
brighten the image and/or mess with contrast
but that did not reveal anything useful. As far as I can tell the picture is solely these black marks on a white background.
Reverse image search also did not yield any convincing results, nor did rotating, flipping, etc. The only interesting thing I found is that when you orient it like this:

The last two markings seem to say IF. But that could just be a coincidence and/or unrelated to the solution.
Other notes:
The filename when you save the picture is njw4z, which may be relevant and seems to resemble a code?