OK, thank you, it works!

 or you could set Legend.BoundsMeasureType = Percent and use percent values to ensure the legend is always in the same place.

 I didn't exactly understand what do you mean. I set the legend position with legend.Bounds = newRectangle(...). If the application window size is changed or the size of the ultrachart inside the application window the legend position inside the ultrachart window is changed too. So I have to do it like described above.

Do you mean that I have to change the position of the legend like I did it before when the ultrachart size was changed?

 ah, maybe the problem is your Legend is positioned with BoundsMeasureType.Pixels, and that causes the discrepancy with the legend position...?  if so, then that is the expected behavior and you need to change your legend position before exporting to PDF.

 no, that version should be working.  i tested this code with those dlls and the legend printed in the correct position.  am i missing something?

         private void Form1_Load(object sender, EventArgs e)
        {
            this.ultraChart1.ChartType = ChartType.Composite;
            this.ultraChart1.CompositeChart.ChartAreas.Add(new ChartArea());
            this.ultraChart1.CompositeChart.ChartAreas[0].Axes.Add(new AxisItem()
            {
                OrientationType = AxisNumber.X_Axis,
                DataType = AxisDataType.String,
                SetLabelAxisType = SetLabelAxisType.ContinuousData,
                Key = "xAxis"
            });
            this.ultraChart1.CompositeChart.ChartAreas[0].Axes.Add(new AxisItem()
            {
                OrientationType = AxisNumber.Y_Axis,
                DataType = AxisDataType.Numeric,
                Key = "yAxis"
            });
            this.ultraChart1.CompositeChart.ChartLayers.Add(new ChartLayerAppearance()
            {
                ChartType = ChartType.LineChart,
                ChartArea = this.ultraChart1.CompositeChart.ChartAreas[0],
                AxisX = this.ultraChart1.CompositeChart.ChartAreas[0].Axes.FromKey("xAxis"),
                AxisY = this.ultraChart1.CompositeChart.ChartAreas[0].Axes.FromKey("yAxis"),
            });
            NumericTimeSeries series1 = new NumericTimeSeries() { Label = "Series A" };
            series1.Points.Add(new NumericTimeDataPoint(DateTime.Now.AddDays(0.0), 1.0, "a", false));
            series1.Points.Add(new NumericTimeDataPoint(DateTime.Now.AddDays(1.0), 2.0, "b", false));
            series1.Points.Add(new NumericTimeDataPoint(DateTime.Now.AddDays(2.0), 3.0, "c", false));
            this.ultraChart1.CompositeChart.ChartLayers[0].Series.Add(series1);
            this.ultraChart1.CompositeChart.Legends.Add(new CompositeLegend()
            {
                Bounds = new Rectangle(0, 90, 30, 10),
                BoundsMeasureType = MeasureType.Percentage,
            });
            this.ultraChart1.CompositeChart.Legends[0].Border.CornerRadius = 25;
            this.ultraChart1.CompositeChart.Legends[0].ChartLayers.Add(this.ultraChart1.CompositeChart.ChartLayers[0]);

            this.Size = this.ultraChart1.Size = new Size(1000, 1000);

            Report report = new Report();
            ISectionPage page = report.AddSection().AddPage();
            ICanvas canvas = page.AddCanvas(0, 0);
            Graphics g = canvas.CreateGraphics();
            this.ultraChart1.RenderPdfFriendlyGraphics(g, 200, 200);
            report.Publish(@"C:\report.pdf", FileFormat.PDF);
        }