Convert PDF of powerpoint slides to PPT

I have a PDF of a PPT presentation that I do not have access to. Each PDF page has six slides on it. I need the PDF pages zoomed up to a point where you can do screen grabs of each image and then use those images to recreate the PPT. Obviously, the PPT will not be editable and will only be a PPT of images, but that's OK. It is important that the PDF be enlarged enough to get quality screen grabs prior to importing each slide image into its own PPT slide. There are 23 pages... six slides each. So the resulting PPT will have over 120 slides. You can download the PDF at: [login to view URL] If you're interested in winning, please grab a few slides and create a sample PPT for me to evaluate.