The Christian Classics Ethereal Library, developed by Calvin College, again has very nicely formatted, searchable PDFs for the 38-volume Church Fathers set available for free, but donations are appreciated. The PDF for ANF, vol. 10, includes scanned page images. The other PDFs flow their text independently of the formatting and pagination of the original set, but the print set’s page numbers are included in marginal notations that are linked back to scanned page images on the CCEL website. A direct link to each volume’s information page is accessible from the A (ANF) and N (NPNF1, NPNF2) title browsing pages respectively.