MetafileRenderingOptions

FixedPageSaveOptions.MetafileRenderingOptions property

Allows to specify metafile rendering options.

public MetafileRenderingOptions MetafileRenderingOptions { get; set; }

Examples

Shows added a fallback to bitmap rendering and changing type of warnings about unsupported metafile records.

Document doc = new Document(MyDir + "WMF with image.docx");

MetafileRenderingOptions metafileRenderingOptions = new MetafileRenderingOptions();

// Set the "EmulateRasterOperations" property to "false" to fall back to bitmap when
// it encounters a metafile, which will require raster operations to render in the output PDF.
metafileRenderingOptions.EmulateRasterOperations = false;

// Set the "RenderingMode" property to "VectorWithFallback" to try to render every metafile using vector graphics.
metafileRenderingOptions.RenderingMode = MetafileRenderingMode.VectorWithFallback;

// Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
// to modify how that method converts the document to .PDF and applies the configuration
// in our MetafileRenderingOptions object to the saving operation.
PdfSaveOptions saveOptions = new PdfSaveOptions();
saveOptions.MetafileRenderingOptions = metafileRenderingOptions;

HandleDocumentWarnings callback = new HandleDocumentWarnings();
doc.WarningCallback = callback;

doc.Save(ArtifactsDir + "PdfSaveOptions.HandleBinaryRasterWarnings.pdf", saveOptions);

Assert.That(callback.Warnings.Count, Is.EqualTo(1));
Assert.That(callback.Warnings[0].Description, Is.EqualTo("'R2_XORPEN' binary raster operation is not supported."));

Shows added a fallback to bitmap rendering and changing type of warnings about unsupported metafile records (HandleDocumentWarnings).

/// <summary>
/// Prints and collects formatting loss-related warnings that occur upon saving a document.
/// </summary>
public class HandleDocumentWarnings : IWarningCallback
{
    public void Warning(WarningInfo info)
    {
        if (info.WarningType == WarningType.MinorFormattingLoss)
        {
            Console.WriteLine("Unsupported operation: " + info.Description);
            Warnings.Warning(info);
        }
    }

    public WarningInfoCollection Warnings = new WarningInfoCollection();
}

See Also

FixedPageSaveOptions.JpegQuality FixedPageSaveOptions.NumeralFormat