Is it possible to include an external image (gif, jpg or png) into a GD generated image?
what I'm trying to do is get the latest wordpress blog post (like 5) and generate an image from it. I would like to include the title and the image uploaded with the blog post.
Yes. Use one of the imagecreatefromXXXXX functions to import the external image into a GD image object, then use the imagecopy function or similar to combine it with your generated image.
For convenience, the GD function reference is here.