Extracting graphics from a PDF

[Himeos]

Is it possible to extract graphics like this one from a PDF?
Images work just fine, I can't seem to figure out how to extract this.
Upon printing the type of objects from this PDF, all I get is: Smalot\PdfParser\PDFObject, Smalot\PdfParser\XObject\Form, Smalot\PdfParser\Font\FontType1 and Smalot\PdfParser\Encoding.

I'm assuming this was created using LaTeX but I'm not sure.

[k00ni]

There are some issues regarding images (e.g. how to extract them), such as #705 (comment). Maybe they already provide what you are looking for.