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Improve Error Handling for PdfRadViewer during document import (BackgroundWorker)

KeyNotFoundException when filing the fields in a specific document and saving it.

When exporting a RadFixedDocument, which contains a signature added with PdfProcessing a NotSupportedException is thrown: 'Stream does not support reading.'

The issue is reproducible only for some specific font files. The characters are displayed as rectangles. This seems to caused by incorrect glyph name and glyph id mapping.

Loading corrupt PDF results in non-trappable error and exception

When importing a document containing a single associated widget annotation merged into the field dictionary the field is skipped on import and an exception is thrown.

According to the PDF Specification: Field Dictionaries: Kids:

An array of indirect references to the immediate children of this field.
In a non-terminal field, the Kids array is required to refer to field dictionaries that are immediate descendants of this field. In a terminal field, the Kids array ordinarily must refer to one or more separate widget annotations that are associated with this field. However, if there is only one associated widget annotation, and its contents have been merged into the field dictionary, Kids must be omitted.

An implementation of JPXDecoder should be created to allow the decompression of data encoded using the wavelet-based JPEG2000 standard.

The viewer is using a large amount of memory when scrolling a specific PDF file. After some point, an OutOfMemeory exception is thrown.

Workaround:

Build for the x64 platform

The executing of the PostScriptReader`s Read method takes a lot of time when iterating content streams with many Path geometries.

Introduce support for per page rotation. The result should be automatically saved as well. 

The PDF model allows actions to be defined for widgets using the optional /A entry. 

According to the PDF specification: Codes are never longer than 12 bits; therefore, entry 4095 is the last entry of the LZW table.

Add support for Trigger Events

A specific scanned file is not displayed with the new model.

Show the DropDownList icon when the document contains ComboBox field. This is the default behavior in adobe as well. 

When importing document with text containing char code mapped to .notdef glyph name an ArgumentException: 'The encoding is not supported.' is thrown.

When saving Form Fields in document defined with linearized PDF structure, it produces a document that fails to open in Edge.

I would like to be able to set a list of page numbers that will be skipped/not loaded by the PDFViewer.