Hi Raghu,
Thank you for your interest in Syncfusion Products.
How to set size of the image?You can set the size of the image by using the below code snippet:
PdfGraphics g = page.Graphics;
//Setting the height, width of the image
g.DrawImage(jpg, 0, 0, 400,250);
Please refer the sample in the below link which illustrates the above:
http://websamples.syncfusion.com/samples/PDF.Windows/F70549/main.htmPlease let me know if you have any other questions.
Regards,
Vinoth