We can create a PDF file from a set of images with i2PDF and other free apps available on the Internet, extracting images from PDF files also easier with free apps like Some PDF Extract and Nitro PDF Reader how about converting total pages in a PDF file to images which can be made possible by TTR PDF To JPG app.
TTR PDF To JPG is free app with easy to use interface allows to convert selected pages in a PDF file or all pages in PDF file to JPG image format by default, however you can choose conversion of PDF file to other image formats such as PNG, GIF and BMP from app’s user interface.
Converting PDF files to Images
1. You can add a single PDF file or multiple files, select single / multiple PDF files and enter the input pages numbers or no input in that field is treated as all pages conversion
2. Select “output directory” and click “Start Convert”, extracted images saved in output directory in your chosen image format.
TTR PDF To JPG is freeware, requires Java Runtime Environment to be installed in your Computer to work.
I use PDF Xchange viewer to convert pdf file into images. its quite good and i am satisfied.