imageTypeToExtension method

imageTypeToExtension(imageType)

Converts an Aspose.Words image type enumerated value into a file extension. The returned extension is a lower-case string with a leading dot.

imageTypeToExtension(imageType: Aspose.Words.Drawing.ImageType)

Parameter	Type	Description
imageType	ImageType

Exceptions

exception	condition
RuntimeError (Proxy error(ArgumentException))	Throws when cannot convert.

Examples

Shows how to extract images from a document, and save them to the local file system as individual files.

let doc = new aw.Document(base.myDir + "Images.docx");

// Get the collection of shapes from the document,
// and save the image data of every shape with an image as a file to the local file system.
let nodes = [...doc.getChildNodes(aw.NodeType.Shape, true)];

expect(nodes.filter(s => s.asShape().hasImage).length).toEqual(9);

let imageIndex = 0;
for (let node of nodes)
{
  let shape = node.asShape();
  if (shape.hasImage)
  {
    // The image data of shapes may contain images of many possible image formats. 
    // We can determine a file extension for each image automatically, based on its format.
    let imageFileName =
      `File.ExtractImages.${imageIndex}${aw.FileFormatUtil.imageTypeToExtension(shape.imageData.imageType)}`;
    shape.imageData.save(base.artifactsDir + imageFileName);
    imageIndex++;
  }
}

See Also

• module Aspose.Words
• class FileFormatUtil