It seems that there is no way to dynamically set the height and width of an external image used in rdlc report, but here a workaround to make it possible Add image to you Report On the image properties, set it to use External image source and use a report parameter to set which image to use On image, set "keep original size" Edit: You may also generate such "padding image" dynamically to allow different widths, for example: public void GenerateReport(int width, int height) { var image =Bitmap.FromFile("your image path"); //you can use stream or other way to get the image using (var g = Graphics.FromImage(image)) { g.Clear(Color.Transparent); g.FillRectangle(new SolidBrush(Color.Transparent), 0, 0, width, height); // here will change the size to fit in report } MemoryStream ms = new MemoryStream(); image.Save(ms, System.Drawing.Imaging.ImageFormat.Png); // and pa...
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