Not sure I follow; would the image crash the engine or the entity that’s shown on it?
Your posts sound like they’ve been written by someone who thinks computers run on magic. Or you’re just trolling.
The data in a png file could potentially be arranged to crash (or at least confuse) the importer. If that was the case it would mess ANY importer, including the one your browser uses right now to display this image on the forum.
Once you successfully import an image into Godot (or any other engine) without it complaining or crashing, the file format becomes irrelevant and the image ends up a passive string of pixel data that sits in your graphics card memory. Those pixels have no powers whatsoever to cause any technical trouble, regardless of how evil or badass the character they represent is.
So to keep it practical - import the image into Godot, if it imported without problems and you can show it as a sprite - the image will live inside the engine happily ever after.