The standalone class in LaTex allows to convert individual equations, tables, and figures into .png files. It does require ImageMagick to convert pdf to image and crop
Important Note: If you are using a \begin{table}, \begin{figure}, or \begin{equation}/$$ environments, you must add the preview option to the \documentclass command or else it will not compile. For tables, I just use the \begin{tabular}\end{tabular} environment instead and it works fine and I just use