如何在PHP中将任何图像文件转换为EPS格式？

I have an image processing system in PHP with Imagemagick. The existing system will be processing images of EPS format for some process and PNGs for the remaining process. So, I need to upload the same image file in EPS and PNG. I am doing the file upload facility now, which should automate the procedure of converting any format image file into EPS and PNG and should save in corresponding locations.I have an image processing system in PHP with I