Thanks for the answer, I've tried that before, however the chart while stretched, is not properly scaled.

My point is, it's not supposed that the RenderPdfFriendlyGraphics will do the auto scaling to fit the page?

Thanks in advance for any help!

RenderPdfFriendlyGraphics is not designed to do any scaling to fit the page.  You can, however, use the PageSize property of the report section to get the page size, and base the size of the chart off of that.

Thanks again for your help!

Please, can you give me a little code to do that?

Thanks in advance.

Gus

             Report rep = new Report();
            ISection mySection = rep.AddSection();

            float sectionWidth = mySection.PageSize.Width;
            float sectionHeight = mySection.PageSize.Height;

            float chartWidth = this.ultraChart1.Width;
            float chartHeight = this.ultraChart1.Height;

            float targetWidth, targetHeight;
            if (chartWidth > chartHeight)
            {
                targetWidth = sectionWidth;
                targetHeight = chartHeight * (sectionWidth / chartWidth);
            }
            else
            {
                targetHeight = sectionHeight;
                targetWidth = chartWidth * (sectionHeight / chartHeight);
            }
            
            Graphics myGraphics = mySection.AddCanvas().CreateGraphics();
            
            if (targetWidth > targetHeight) // optional: center image
            {
                myGraphics.TranslateTransform(0f, (sectionHeight - targetHeight) / 2f);
            }
            else
            {
                myGraphics.TranslateTransform((sectionWidth - targetWidth) / 2f, 0f);
            }
            
            this.ultraChart1.RenderPdfFriendlyGraphics(myGraphics, (int)Math.Floor(targetWidth), (int)Math.Floor(targetHeight));
            
            rep.Publish(@"C:\chart.pdf", FileFormat.PDF);

David, thanks a lot for your great help, very appreciated!

Gus