Rough demo to transform a CGPDFPage to a UIImage with a given width

PDFTransformToImage.cs

private UIImage TransformToImage(CGPDFPage page, Single width)
{
	RectangleF pageRect = page.GetBoxRect(CGPDFBox.Media);;
	Single pdfScale = width / pageRect.Size.Width;
	pageRect.Size = new SizeF(pageRect.Size.Width*pdfScale, pageRect.Size.Height*pdfScale);
	//pageRect.Origin = CGPointZero;
	
	UIGraphics.BeginImageContext(pageRect.Size);
	CGContext context = UIGraphics.GetCurrentContext();
	
	//White BG
	context.SetRGBFillColor(1.0f,1.0f,1.0f,1.0f);
	context.FillRect(pageRect);
	context.SaveState();

	 // Next 3 lines makes the rotations so that the page look in the right direction
	context.TranslateCTM(0.0f, pageRect.Size.Height);
	context.ScaleCTM(1.0f, -1.0f);
	CGAffineTransform transform = page.GetDrawingTransform(CGPDFBox.Media, pageRect, 0, true);
	context.ConcatCTM(transform);
	
	context.DrawPDFPage(page);
	context.RestoreState();
	
	UIImage img = UIGraphics.GetImageFromCurrentImageContext();
	UIGraphics.EndImageContext();

	return img;
}