Convert Pdf file pages to Images with itextsharp

Question

I want to convert Pdf pages in Images using ItextSharp lib.

Have any idea how to convert each page in image file

Answer 1

You can use Ghostscript to convert the PDF files into Images, I used the following parameters to convert the needed PDF into tiff image with multiple frames :

gswin32c.exe   -sDEVICE=tiff12nc -dBATCH -r200 -dNOPAUSE  -sOutputFile=[Output].tiff [PDF FileName]

Also you can use the -q parameter for silent mode You can get more information about its output devices from here

After that I can easily load the tiff frames like the following

using (FileStream stream = new FileStream(@"C:\tEMP\image_$i.tiff", FileMode.Open, FileAccess.Read, FileShare.Read))
{
    BitmapDecoder dec = BitmapDecoder.Create(stream, BitmapCreateOptions.IgnoreImageCache, BitmapCacheOption.None);
    BitmapEncoder enc = BitmapEncoder.Create(dec.CodecInfo.ContainerFormat);
    enc.Frames.Add(dec.Frames[frameIndex]);
}