Get document page preview
In GroupDocs.Redaction, Redactor class supports rendering of the document preview in on of these image formats:
- JPEG Image
- Portable Network Graphics (PNG)
- Bitmap Image File (BMP)
The following example demonstrates how to get a single page preview of the document.
// Take preview of the first page
int testPageNumber = 1;
// Preview file name
string previewFileName = string.Format("{0}_page{1}.png", "D:\\sample.docx", testPageNumber);
// Load the document to generate preview
using (Redactor redactor = new Redactor("D:\\sample.docx"))
{
PreviewOptions options = new PreviewOptions(delegate(int pageNumber)
{
return File.OpenWrite(previewFileName);
});
options.Width = 480;
options.Height = 640;
options.PageNumbers = new int[] { testPageNumber };
options.PreviewFormat = PreviewOptions.PreviewFormats.PNG;
redactor.GeneratePreview(options);
Console.WriteLine("\nPreview for page {0} was saved to \"{1}\"", testPageNumber, previewFileName);
}