I don’t know what do you mean by pdf image, but if you want to simply convert pdf to an image you can easily do so. There are several applications to do that. For example, you can import the pdf page to Inkscape and then save the document as a png. There are other applications also, like libre office draw, etc. I think most of the drawing software can import pdf and then you can save as image. You can even take a screenshot of the page and save it.
If you do not need to text files, the program can accept a PDF document with only text You also can convert PDF documents to Word/Excel files, text, PDF and many other image types. This is a free online tool that lets you convert PDF to Word/Excel files and many other file types. The tool can also use a PDF file as text, if it can convert the PDF image for text on its own. I don't have a PDF document handy with my name and phone number in it, so what is the best format for such a document? If you do not want to have the PDF document on your computer, you can scan a picture of your documents, using the “Scan to PDF” option in most program. This can be done in software like Photoshop, and Google's free photo-recognition software. For example, Google Photos will work well for this. How do I know.