SkiaImageFormatProvider: Optimize Image Export Performance for Competitive Standards.

Implement a MarkdownFormatProvider, which will allow import/export from/to markdown format.

Introduce new section properties which are responsible for defining columns in the section.

Introduce calculation chain functionality. This will provide a better mechanism for handling dependent expressions.

Respect thread culture when formatting dates with the "\@" switch during mail merge.

Provide a way to export filters.

Currently, the export of lists to text is not supported.

When signing more than one signature field, the previous signatures are invalidated.

Add support for ShadingType 1.

This will allow the import of Tensor-product patch mesh gradients. Currently, importing documents that contain ShadingType 7 results in NotSupportedShadingTypeException.

This type of shading is not supported in the current version and a NotSupportedException is thrown when importing documents containing it.

The exception can be suppressed using the Exception Handling mechanism of PdfProcessing.

A shading dictionary specifies details of a particular gradient fill, including the
type of shading to be used, the geometry of the area to be shaded, and the geometry of the gradient fill. Various shading types are available, depending on the value of the dictionary’s ShadingType entry:

• Coons patch meshes (type 6) construct a shading from one or more color
  patches, each bounded by four cubic Bézier curves.

XlsFormatProvider: Add support for hidden rows.

Add support for superscript and subscript font effects for cell formatting. Currently, this is not supported by the model and is omitted on import.

Introduce an API for Cloning RadFixedPages.

Implement the Exponential Interpolation Function in PdfProcessing. Currently, NotSupportedFunctionTypeException is thrown with a message "Function type 2 is not supported."

At this point, XlsFormatProvider doesn't support images and they are not imported into Workbook while reading an .xls file.

Add support for strikethrough font effect for cell formatting. Currently this is not supported by the model and is omitted on import.

With the current implementation when exporting a Stitching function all the containing functions are exported as Sampled functions even if they originally have been imported as Exponential interpolation functions, which leads to an increase in the size of the document.

More information can be found in the PDF Specification.

At this point XLS import of SpreadProcessing does not have support for notes/comments.