This is the list of changelogs of Spire.Presentation New release and hotfix. You can get the detail information of each version's new features and bug solutions.

Hot Fix Version: 4.2.1

New Features:

• Support to convert the specific slide to SVG.

byte[] svgByte = ppt.Slides[0].SaveToSVG();

Bug Fixes:

• Fixes the issue that the data of 3-D Format of chart label could not be obtained.
• Fixes the issue that the value set to DataLabelSize was different from the value in PowerPoint.
• Fixes the issue that the number list type was incorrect after converting Html to PPT.
• Fixes the issue that setting the DataLabelSize for the newly added label didn't take effect.

Hot Fix Version: 4.1.16

New Features:

• Supports to copy shapes between slides.

Presentation presentation = new Presentation();
presentation.LoadFromFile(input);
ISlide sourceSlide = presentation.Slides[0];
ISlide targetSlide = presentation.Slides[1];
targetSlide.Shapes.AddShape((Shape)sourceSlide.Shapes[0]);
presentation.SaveToFile(output, FileFormat.Pptx2013);

Bug Fixes:

• Fixes the issue that the row height was incorrect after splitting cells.

Hot Fix Version: 4.1

New Features:

• Supports to get and set the 3D effect for the text in shape.

IAutoShape threeDShape = (IAutoShape)ppt.Slides[0].Shapes[0];
threeDShape.TextFrame.TextThreeD.ShapeThreeD.PresetMaterial = PresetMaterialType.Powder;
threeDShape.TextFrame.TextThreeD.LightRig.PresetType = PresetLightRigType.Balanced;
threeDShape.TextFrame.TextThreeD.ShapeThreeD.TopBevel.PresetType = BevelPresetType.Divot;
threeDShape.TextFrame.TextThreeD.ShapeThreeD.ContourColor.Color = Color.DarkGreen;
threeDShape.TextFrame.TextThreeD.ShapeThreeD.ContourWidth = 2;

Bug Fixes:

• Fixes the issue that the progress took too much time to convert a PPT file to image.
• Fixes the issue that the result image was blank after converting PPT to image.
• Fixes the issue that the value of DataLabelSize under ChartDataLabel object was always 0.
• Fixes the issue that setting the value for DataLabelSize didn't work.
• Fixes the issue that the content was missing after converting PPT to image.

Hot Fix Version: 3.12.9

Bug Fixes:

• Fixes the issue that the application threw a "DocumentUnknownFormat" exception when loading a PPTX file.
• Fixes the issue that the result PPTX cannot be opened by MS PowerPoint after loading and saving.

Hot Fix Version: 3.12.4

New Features:

• Add new method to support fitting to shape when cropping picture.

SlidePicture.PictureAdjust(); 

• Add new method to support removing the master layout.

IMasterLayouts.RemoveMasterLayout(int index);

Bug Fixes:

• Fixes the issue that the default color of series couldn't be got.
• Fixes the issue that the application hung when loading PPT file.
• Fixes the issue that the Excel file that contains the data source couldn't be opened after modifying some data of chart data source.

Hot Fix Version: 3.11.1

New Feature:

• Supports to set the size of data lable in chart.

cd1.DataLabelSize = new SizeF(0.23f, 0.56f);

• Supports the tags "" and "" when converting HTML to PPT.

Hot Fix Version: 3.10.4

Bug Fixes:

• Fixes the issue that it failed to fill the color for the series when the value is negative.

Hot Fix Version: 3.10.1

Bug Fixes:

• Fixes the issue that the application threw DocumentUnKnownFormat exception when loading a .pptx document.
• Fixes the issue that text color was changed when converting a .pptx document to images.

Hot Fix Version: 3.9.8

Bug Fixes:

• Fixes the issue that the generated file would prompt a message for repairing the document after adding a "CalloutWedgeRoundRectangle" shape in PPT.
• Fixes the issue that filtering the series in PowerPoint with the generated file would result in bad format after hiding the chart series in PPT.

Hot Fix Version: 3.9.5

New Features:

• Adds a new method "Split()" for splitting the table cells in PPT.

public void Split(int RowCount, int ColunmCount);
//Eg.split the cell to 2 rows and 2 columns
table[0,0].Split(2,2);

• Adds a new property “PlotAreaWidthOfCalculated” for getting the updated width of the chart plot area.

float PlotAreaWidthOfCalculated { get; }

Bug Fixes:

• Fixes the issue that the conversion from the PPT file to SVG resulted in blank page.
• Fixes the issue that the result was in wrong format after converting the HTML which contains a "strong" tag to PPT.
• Fixes the issue that the chart format changed after converting PPT to SVG.
• Fixes the issue that the hyperlink got removed after loading and saving the PPT file.
• Fixes the issue that the "FontHeight" setting did not make any sense for the newly created PPT.