I have to convert pdf to image using php libraries.I want help to complete the task.and I want step by step process
Welcome to the site!
PDF is a proprietary file type from Adobe. If you own a copy of the full Acrobat system from them, it will allow some sort of image. If you are creating the PDF file from a library, you can use the obj() function to create an image of it when displaying it on a webpage and save this into a file as an image. But, since you already are creating the PDF, it seems better to just save or display the PDF itself.
Please explain why you need all three, original data, PDF and image of both and we can help you further.