Is there a ready-made tool to crop photos to a specific aspect ratio?

Question

Node.js

The task, having an image with a completely random resolution, is to make an image out of it with an aspect ratio of 9:16. That is, in some cases, just change the size, if the original proportions differ slightly, in others - add frames. For example, if the photo has an aspect ratio of 16:9, then you need to resize it and add wide white borders at the top and bottom.

Example

I am aiming at the capabilities of the gm library, but it does not provide the implementation algorithm itself, only tools - crop, resize and much more.

I would like to know if there is a ready-made tool that changes the aspect ratio of a photo? In this case, the programming language is not particularly important. Of course, it is better that it be nodejs, but, say, python or php can also be considered. (the main thing is to be able to execute from the node (for example, using exec( ) )

Answer 1

There is sharp , covers most tasks