toByteArray method

toByteArray()

Returns the property value as byte array.

toByteArray()

Remarks

Throws an exception if the property type is not PropertyType.ByteArray.

Examples

Shows how to add a thumbnail to a document that we save as an Epub.

let doc = new aw.Document();
let builder = new aw.DocumentBuilder(doc);
builder.writeln("Hello world!");

// If we save a document, whose "Thumbnail" property contains image data that we added, as an Epub,
// a reader that opens that document may display the image before the first page.
let properties = doc.builtInDocumentProperties;

let thumbnailBytes = base.loadFileToArray(base.imageDir + "Logo.jpg");
properties.thumbnail = thumbnailBytes;

doc.save(base.artifactsDir + "DocumentProperties.thumbnail.epub");

// We can extract a document's thumbnail image and save it to the local file system.
let thumbnail = doc.builtInDocumentProperties.thumbnail;
fs.writeFileSync(base.artifactsDir + "DocumentProperties.thumbnail.gif", Buffer.from(thumbnail));

See Also

• module Aspose.Words.Properties
• class DocumentProperty