Whitespaces are ignored when copy-pasting from PdfViewer to another text redactor.

When the file has an annotation with a destination and this destination is missing from the destinations (Dests) collection of the catalogue, KeyNotFoundException is thrown when you try to scroll to the page where the annotation is located. A better behavior would be for nothing to happen when trying to click on the annotation leading to the destination.

Some Chinese characters cannot be found in s a specific Cmap.

GetSubr method of Top class throws an exception when Private property is null.

The glyphs are rendered with additional unexpected lines when a specific custom Type 1 font is used to show them.

It seems that the glyph outlines are rendered wrong for some specific CFF font files. For instance, the issue is reproducible with "Aleo-Light" font.

From the PDF specification:

Prev: (Present only if the file has more than one cross-reference section; must not be an indirect reference) The byte offset from the beginning of the file to the beginning of the previous cross-reference section. 

When importing such a document an exception is thrown: System.ArgumentNullException: 'Value cannot be null.

When the Interactive Form Fields are in read-only mode, the user should not be able to change the value of the field. The associated Form Field widgets should not interact with the user, e.g. they should not respond to mouse clicks or change their appearance in response to mouse motions.

In the PDF document model, the Annotation appearances refer to an external resource using the Resources dictionary. When the Resources dictionary is defined as an Indirect Object an InvalidCastException: 'Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfDictionary' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.PdfResource'.', is thrown.

When creating thumbnails from RadFixedPage with images, the page images are missing from the resultant thumbnail.

CreateThumbnail of ThumbnailFactory leads to InvalidOperationException: 'The calling thread cannot access this object because a different thread owns it.', when called from separate STA thread.

Loading document containing link with no destination leads to ArgumentNullException in PdfElementToFixedElementTranslator.CreateDestination method.

The offset of the Page boundaries such as CropBox, MediaBox, BleedBox, and ArtBox is not respected and is always treated as 0 which causes misplaced Annotations.

Documents containing large images are slow to decompress and decode.

Unsupported annotations are rendered on top of other content. When there is a form field that appears inside the annotation, it cannot be clicked or interacted with as the annotation is capturing the mouse gestures.

A file shows blank pages with the latest version. Works with R3 2022.

This happens only in specific scenarios as most of the documents with annotations are visualized correctly.

When a PDF is printed all images are omitted.

Available in R1 2018 SP1 version.

Loading page with a lot of text takes several minutes which is unacceptable. This performance issue is caused by class GlypInfoFactory, which caches the glyph information.

Available in LIB Version 2017.3.1225.

Loading specific documents leads to mispositioned and/or missing text content.