The command-line version of PDF to Image Converter can be used in Batch Convert PDF to Image processing in any other way you wish.
Required options:
-i input pdf file or directory
Optional Options:
-f output image format, default is "JPEG"
Format should be one of these strings:
"BMP 24 Bit" "BMP 8 Bit" "JPEG" "GIF" "PCX 24 Bit"
"PNG 24 Bit" "PNG 8 Bit" "PNG 8 Bit (Gray)" "PNG 4 Bit"
"PNG Monochrome" "TIFF 24 Bit"
-o output image file path, default is as same as input file path
-w width of the ouput image, e.g. "500"
-h height of the ouput image, e.g. "300"
-csd create sub directory for every PDF's output image, can be "1" or "0"
-apn add page number to output image file, e.g. "%04d", if input PDF file name is "test.pdf" and have 5 pages, then "%04d" will generate test0001.jpg, test0002.jpg, test0003.jpg, test0004.jpg and test0005.jpg.