The  FunctionType property is required according to PDF specification and we should always export it.

Fix available in R2 2018 SP1 release version.

This allows specifying a soft mask in the external graphics state.

Currently, there is internal API which is used by RadWordsProcessing PDF export functionality. We should consider making appropriate public API which would expose tab stops editing functionality.

Provide a way to change the Name of a FormField from the RadDocument.AcroForm.FormFields collection.

As a workaround, you could create a new instance of a FormField with the desired name, add the new field in the document and remove the old one. You can use the following approach:
   1) Create a new instance of FormField (with the desired name, passed in the constructor), which will play the role of a copy of a specific FormField
   2) Copy all properties from the original field (they all vary, depending on the concrete type of the FormField, for example CheckBoxField, etc.)
   3) Create a new widget for the new field, and copy all properties from the original field's widget into the new one.
   4) Remove the original field from the RadDocument.AcroForm.FormFields collection and add the new field.
   5) Remove the original widget from the corresponding page's annotation and add the new one.

Attached is a project demonstrating this approach for a CheckBoxField.

Currently, NotSupportedException is thrown when trying to import a document that uses Type 3 fonts.
Update: With Release R1 2021 the import of Type 3 fonts is already developed but the export is still not supported.

The hierarchical document structure is a means to describe the PDF document structure, which is currently not supported. See 10.6.1 Structure Hierarchy on 856 page of the PDF specification for details.
This document structure is an alternative to the standard PDF structure and most non-Adobe software does not support it.

The document might have been created with Adobe software like Adobe LiveCycle Designer. Very often the document contains some fallback text in the standard PDF structure like:
"Please wait... If this message is not eventually replaced by the proper contents of the document, your PDF viewer may not be able to display this type of document."
"The document you are trying to load requires Adobe Reader 8 or higher. You may not have the Adobe Reader installed or your viewing environment may not be properly configured to use Adobe Reader. For information on how to install Adobe Reader and configure your viewing environment please see  http://www.adobe.com/go/pdf_forms_configure."
"For the best experience, open this PDF portfolio in Acrobat X, Reader X, or later."

RadPdfProcessing currently supports interactive forms whose data is defined directly in the document. Add support for interactive forms based on the Adobe XML Forms Architecture (XFA). The entry is defined inside the interactive forms dictionary and refers to an XML stream containing the information of the form. More information is available on page 722 from Pdf Reference, version 1.7.
Updates:
November 2024
From PDF 2.0 (ISO 32000-2) the XFA forms are depreciated. For this reason, we are changing our plans and declining this item, but we will provide import-export support to avoid losing existing XFA content. Please, subscribe to the following public item: PdfProcessing: Add support for XFA fields import-export.

In this case, we should use a default alpha source value which is the opacity source.

Currently, when registering *.otf font file with FontsRepository.RegisterFont method an exception is thrown during the font creation. 

WORKAROUND:  The font file may be converted to TTF format (*.ttf) which is successfully registered. This conversion may be achieved with FontForge by opening the font file and then choosing File -> Generate Fonts -> TrueType -> Generate. More information on FontForge program may be found here: https://fontforge.github.io/en-US/

This exception seems to be related to AES algorithm PaddingMode property. 

Text fields should support rich text strings allowing the user to use rich text elements and attributes.

Add support for a strikethrough property or strikethrough-related properties in the TextProperties class.

Automatically.PNG
Please find the attachment.
Sending the info on spelling error

The Matrix property seems to be incorrectly interpreted during the import process.

For some documents, the clippings and colors of the geometries are modified on an import-export scenario.

This includes loading form fields data from FDF file and saving the form fields data to FDF file.

Stencil color has to be preserved for images with ImageSource when ImageMask property set to true. Not preserving it results in wrong colors (for instance the image may be visualized as a black rectangle).

Available in R1 2019 Official Release Version.

Currently, we support inserting png, jpg and other raster graphic images. Provide a way to insert image from SVG (vector graphic image format), by creating a FormSource from its parsed XML.

Currently RadFixedDocumentInfo is used only for export of Author, Title and Description document metadata properties. This should be extended to support custom properties. We should also implement the import of RadFixedDocumentInfo.

Although this is not a valid postscript scenario we should not throw exceptions and we should instead skip the invalid dictionary end characters.

Fix available in LIB Version 2018.1.312.