There are two ways to extract images from PDF files: extracting entire pages as images or extracting separate images from pages.
For extracting pages as images, use PDFChef by Movavi. Open your PDF file in the program, click the preview of the page you want to save as an image and select Convert to JPG, PNG, BMP. In the window that opens, locate a target folder, enter a name for the picture, choose one of the four file types listed, and click Save.
For extracting separate images from pages, use PDF Candy. This free web service can extract all the pictures from a PDF document in just a couple of clicks. Go to the PDF Candy website, drag and drop the PDF file into the browser window, and wait until the software processes your file. When it’s done, you’ll see the Download file button. Click it to save images to your computer. If the PDF file only has one image, it will be downloaded as a JPG file. If there is more that one image, you’ll get a ZIP folder with all the pictures from the document.
Go to the PDF Candy website