public static void AddSvg(Stream stream, string svgPath, double percentageOfCy)
{
using PresentationDocument presentationDocument = PresentationDocument.Open(stream, true);
PresentationPart presentationPart = presentationDocument.PresentationPart ??
throw new InvalidOperationException(@"PresentationDocument is invalid.");
// Get relationship ID of first slide.
string sldRelId = presentationPart
.Presentation
.SlideIdList?
.Elements <Presentation.SlideId>()
.Select(slideId => (string)slideId.RelationshipId !)
.FirstOrDefault() ?? throw new InvalidOperationException(@"Presentation has no slides.");
// Get first slide's part.
var slidePart = (SlidePart)presentationPart.GetPartById(sldRelId);
// Determine unique relationship IDs for new image parts.
int partsCount = slidePart.Parts.Count();
string pngRelId = $"rId{++partsCount}";
string svgRelId = $"rId{++partsCount}";
// Add new image part with PNG image to slide part.
using Stream pngStream = GeneralTools.ReadSvgAsPng(svgPath);
GeneralTools.AddImagePart(slidePart, ImagePartType.Png, pngRelId, pngStream);
// Add new image part with SVG image to slide part.
using Stream svgStream = File.Open(svgPath, FileMode.Open, FileAccess.Read);
GeneralTools.AddImagePart(slidePart, ImagePartType.Svg, svgRelId, svgStream);
// Create markup.
var picture =
new Presentation.Picture(
new Presentation.NonVisualPictureProperties(
new Presentation.NonVisualDrawingProperties(
new Drawing.NonVisualDrawingPropertiesExtensionList(
new Drawing.Extension(
new CreationId
{
Id = GeneralTools.GetNewGuidString(),
}.WithNamespaceDeclaration("a16", "http://schemas.microsoft.com/office/drawing/2014/main"))
{
Uri = "{FF2B5EF4-FFF2-40B4-BE49-F238E27FC236}",
}))
{
Id = (uint)++partsCount,
Name = "Picture 1",
},
new Presentation.NonVisualPictureDrawingProperties(
new Drawing.PictureLocks
{
NoChangeAspect = true,
}),
new Presentation.ApplicationNonVisualDrawingProperties()),
new Presentation.BlipFill(
new Drawing.Blip(
new Drawing.BlipExtensionList(
new Drawing.Extension(
new SVGBlip
{
Embed = svgRelId,
})
{
Uri = "{96DAC541-7B7A-43D3-8B79-37D633B846F1}",
}))
{
Embed = pngRelId,
},
new Drawing.Stretch(
new Drawing.FillRectangle())),
GetShapeProperties(presentationPart, percentageOfCy));
Presentation.ShapeTree shapeTree = slidePart
.Slide
.CommonSlideData?
.ShapeTree ?? throw new InvalidOperationException();
shapeTree.AppendChild(picture);
}