From the PDF specification: "The current stroking alpha constant, specifying the constant shape or constant opacity value to be used for stroking operations in the transparent imaging model."

Not respecting it leads to lost image transparency.

Export to image is blocked when Export method is used instead of ExportAsync.

Add support for documents containing RTL (right-to-left) text.

PdfProcessing: RTL (right-to-left) text is reversed when inserting it directly to a document

Implement importing and exporting the javascript actions associated with push button fields so that they can be executed when the exported document is opened with Adobe Acrobat. Javascript actions are also used by text fields for text validation (for instance for date input).

The Form object does not inherit the graphics state of the page

Unexpected trace warning when SVG document does not contain clipping.

Watermark transparency is not imported correctly

Win32Exception is thrown during a long-running process importing many documents with images.

When Separation color space with "name" set as None it is falling back to an "alternateSpace" (color space) instead.

From the Pdf specification:
A Separation color space is defined as follows:
[ /Separation name alternateSpace tintTransform ]

Observed:

The None value is ignored and the color space fallbacks to the Lab color space.

The document text is overlapped and not possible to read for a specific document. Most of the text is moved to the bottom of the page.

When importing and exporting some PDF documents, wrong colors are exported,  e.g. dark red instead of light pink

At this point, the justify alignment is not supported.
Note: When implementing this functionality, ensure that there an is appropriate public API for setting the text alignment to Justify

While parsing the Post table of a specific font file on export an exception is thrown: InvalidOperationException: 'Position is out of range.'

When cloning or merging a document containing a Link with Actions collection an exception is thrown: NullReferenceException: 'Object reference not set to an instance of an object.'

When a Form with AlphaConstant and/or StrokeConstant contains a Path, alpha is applied to Form and Path, leading to a wrong transparency.

InvalidCastException: 'Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfArray' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfName'.'
when parsing a specific document.

Following the steps:

1. Create two PDF documents that contain form fields where the name contain a period, e.g. "person1.name".

2. Merge the two documents:  https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/model/interactive-forms/form-fields/formfields#merging-documents-with-form-fields 

StackOverflowException is thrown when applying filter for SVG.