convert foo.pdf pages-%03d.tiff

gs -q -dNOPAUSE -sDEVICE=tiffg4 -sOutputFile=a.tif foo.pdf -c quit

$tool = 'C:Program Filesgsgs8.63bingswin32c.exe'
$pdfs = get-childitem . -recurse | where {$_.Extension -match "pdf"}

foreach($pdf in $pdfs)
{

    $tiff = $pdf.FullName.split('.')[0] + '.tiff'
    if(test-path $tiff)
    {
        "tiff file already exists " + $tiff
    }
    else
    {
        'Processing ' + $pdf.Name
        $param = "-sOutputFile=$tiff"
        & $tool -q -dNOPAUSE -sDEVICE=tiffg4 $param -r300 $pdf.FullName -c quit
    }
}

import os
    os.popen(' '.join([
                       self._ghostscriptPath + 'gswin32c.exe',
                       '-q',
                       '-dNOPAUSE',
                       '-dBATCH',
                       '-r300',
                       '-sDEVICE=tiff12nc',
                       '-sPAPERSIZE=a4',
                       '-sOutputFile=%s %s' % (tifDest, pdfSource),
                       ]))

for %%f in (%*) DO "C:Program FilesImageMagick-6.6.4-Q16convert.exe" -density 300 -compress lzw %%f %%f.tiff

import os

def pdf2tiff(source, destination):
    idx = destination.rindex('.')
    destination = destination[:idx]
    args = [
    '-q', '-dNOPAUSE', '-dBATCH',
    '-sDEVICE=tiffg4',
    '-r600', '-sPAPERSIZE=a4',
    '-sOutputFile=' + destination + '__%03d.tiff'
    ]
    gs_cmd = 'gs ' + ' '.join(args) +' '+ source
    os.system(gs_cmd)
    args = [destination + '__*.tiff', destination + '.tiff' ]
    tiffcp_cmd = 'tiffcp  ' + ' '.join(args)
    os.system(tiffcp_cmd)
    args = [destination + '__*.tiff']
    rm_cmd = 'rm  ' + ' '.join(args)
    os.system(rm_cmd)
pdf2tiff('abc.pdf', 'abc.tiff')

SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

string pdfPath = @"c:My.pdf";

string imageFolder = @"c:images";

f.OpenPdf(pdfPath);

if (f.PageCount > 0)
{
    //Save all PDF pages to image folder as tiff images, 200 dpi
    int result = f.ToImage(imageFolder, "page",System.Drawing.Imaging.ImageFormat.Tiff, 200);
}

//Convert PDF file to Multipage TIFF file

SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

string pdfPath = @"c:Document.pdf";
string tiffPath = @"c:Result.tiff";

f.OpenPdf(pdfPath);

if (f.PageCount > 0)
{
    f.ToMultipageTiff(tiffPath, 120) == 0)
    {
        System.Diagnostics.Process.Start(tiffPath);
    }
}

SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

    string[] pdfFiles = Directory.GetFiles(@"d:Folder with 1000 pdfs", "*.pdf");
    string folderWithTiffs = @"d:Folder with TIFFs";

    foreach (string pdffile in pdfFiles)
    {
        f.OpenPdf(pdffile);

        if (f.PageCount > 0)
        {
            //save all pages to tiff files with 300 dpi
            f.ToImage(folderWithTiffs, Path.GetFileNameWithoutExtension(pdffile), System.Drawing.Imaging.ImageFormat.Tiff, 300);
        }
        f.ClosePdf();
    }