Could you tell me an application about GD?

Ask an application about GD and ask the function related to the GD library to implement the graphic effect. I have no idea how to use a small image (such as 50*50) to build a Chinese character graph, thank you very much for your advice !, First, write the required Chinese characters (black and white background) in the sample graph with one of the 50 points of the target image to create a large image. if your memory is insufficient, you may fail to create a traversal model graph. For more information, see a GD application.

The GD library functions must be used to achieve the graphic effect. small images (such as 50*50) must be used to form a large Chinese image.
I have never thought about it for a long time. I am very grateful to you for your advice!

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First, write the required Chinese characters (black and white) in the sample image with one of the 50 points of the target image)
Create a large image. if your memory is insufficient, the creation may fail.
Traverse the sample graph and copy small images to the larger graph for each vertex.