CreatePageStream

CreatePageStream delegate

Represents method that returns a stream to write page preview data.

public delegate Stream CreatePageStream(int pageNumber);
Parameter Type Description
pageNumber Int32 Page number of a page to generate thumbnail

Return Value

Stream to write page preview

Examples

The following example demonstrates how get a document preview using PreviewOptions and CreatePageStream delegate.

    CreatePageStream createDelegate = delegate (int pageNumber)
    {
        var pagePath = System.IO.Path.Combine(@"C:\Temp", string.Format("page_{0}.png", pageNumber));
        return System.IO.File.Create(pagePath);
    };
    var previewOptions = new PreviewOptions(createDelegate);
    previewOptions.PreviewFormat = PreviewOptions.PreviewFormats.PNG;
    previewOptions.Height = 640;
    previewOptions.Width = 480;
    previewOptions.PageNumbers = new int[] { 1 };
    using (var redactor = new Redactor("C:\Temp\SourceFile.pdf"))
    {
        redactor.GeneratePreview(previewOptions);
    }

See Also

AdvancedRasterizationOptions ILogger