Save PDF Pages as Images
Here is an Automator application to save each page of a PDF file as an image. You can do this with Preview, but it is tedious for documents with many pages.
When you run the application, it begins by prompting you to select a PDF file. You can select any sort of file, but nothing much will happen if it’s not a PDF.
Next you can choose the output image format. 150 DPI PNG is the default format. I don’t think the compression setting applies to PNG images, but it does apply to JPEGs.
Rendering the images may take a moment. Then you’ll be asked to define how the output files should be named. I recommend the “Make Sequential” option. By default, page images from a three-page document will be named
Lastly, you can choose where to save the results. Choose “Other…” from the menu to select a folder that doesn’t appear among the default locations.
Now you have an image of each page in the PDF.