iTextSharp - Add image to PDF from Datatable

Question

I try to create a PDF report from a datatable. One of the columns contents image. How can I extract the image from datatable and insert into PDF table? I\'m using iTextShap

Answer 1

What exactly is the problem? What happens when you use your problem code?

Try one of the other Image.GetInstance() overloads:

You can pass the byte array directly:

byte[] byt = (byte[])r[6];
Image img = Image.GetInstance(byt);

Or you can pass the Stream:

byte[] byt = (byte[])r[6];
MemoryStream ms = new MemoryStream(byt);
Image img = Image.GetInstance(ms);

Or you can give iTextSharp more info about the image format:

byte[] byt = (byte[])r[6];
MemoryStream ms = new MemoryStream(byt);
System.Drawing.Image sdi = System.Drawing.Image.FromStream(ms);
Image img = Image.GetInstance(sdi, ImageFormat.Png);

If your column can be cast to a System.Drawing.Image, then you can use it directly:

Image img = Image.GetInstance((System.Drawing.Image)r[6], System.Drawing.Imaging.ImageFormat.Png);