public static void CopyRelativeElements(this OpenXmlElement element, WordprocessingDocument weekDoc, MainDocumentPart fromPart)
{
//images
element.Descendants <DocumentFormat.OpenXml.Drawing.Blip>().ToList()
.ForEach(blip =>
{
var newRelation = weekDoc.CopyImagePart(blip.Embed, fromPart);
blip.Embed = newRelation;
});
element.Descendants <DocumentFormat.OpenXml.Vml.ImageData>().ToList()
.ForEach(imageData =>
{
var newRelation = weekDoc.CopyImagePart(imageData.RelationshipId, fromPart);
imageData.RelationshipId = newRelation;
});
}