GroupDocs.Annotation for .NET 20.11 Release Notes

Major Features

Below the list of most notable changes in release of GroupDocs.Annotation for .NET 20.11:

• Implemented generating of specified worksheet columns for the Cells format
• Improved Cells generating preview by splitting the worksheet into multiple images
• Fixed Empty PagesInfo in specific diagram file

Full List of Issues Covering all Changes in this Release 

Public API and Backward Incompatible Changes

New WorksheetColumns property in PreviewOptions class that allows to specify the range of generated columns on a specified worksheet.

Example how to use it:

PreviewOptions previewOptions =
    new PreviewOptions(pageNumber => new FileStream($"preview_pages/page{pageNumber}.png", FileMode.Create),
        (number, stream) => stream.Dispose());
previewOptions.WorksheetColumns.Add(new WorksheetColumnsRange("Sheet1", 2, 3));
previewOptions.WorksheetColumns.Add(new WorksheetColumnsRange("Sheet1", 1, 1));

using (Annotator annotator = new Annotator("input.xlsx"))
{
    annotator.Document.GeneratePreview(previewOptions);
}