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    I experimented on a couple of options for GhostView and came to this group of options to automatically convert the PDF to PNGs without user prompts: -dBATCH -dNOPAUSE -sDEVICE=png16m -r96 -sOutputFile="C:\directory_Output\%03d.png" "C:\directory_Input\pdfname.pdf" Am I doing it right? I also would like to know what DPI I should set it to (I set it to 96 in this case) to have the same resolution as the source PDF. (The PDF files I am converting contains scanned images of a book or magazine, and does not have OCR text/information.) Commented Feb 11, 2011 at 7:21
  • If the source DPI is 96 and the image is likely to be mostly viewed on screen, 96 is a good choice for the output DPI, since that is the default display-DPI for MS Windows (though a few will set their display-DPI to 120). Commented Feb 11, 2011 at 9:54