They are exported with the /EmbeddedFiles switch. This would allow adding external files to the PDF document.

The standard fonts listed at http://docs.telerik.com/devtools/wpf/controls/radpdfprocessing/concepts/fonts#standard-fonts cannot be embedded in a document. Using one of them prevents the document from complying with PDF/A standard.

Currently, this missing functionality may be workaround by either drawing the headers and footers with FixedContentEditor or by using RadWordsProcessing PDF export.

Some fonts don't include bold and italic font styles. These fonts can be exported with the default typeface, and additional transformation could be applied to the letters itself - e.g. skew transform for the italic.

Note: Make sure that this will also work when exporting to PDF in WordsProcessing.

This property should work similar to PreferredWidth cell property but in vertical direction.

To bring RadPDFProcessing to the next level you should support XMP metadata. This would extremely help to use pdf files from RadPDFProcessing in digital workflows.

Reference: http://www.adobe.com/devnet/xmp.html

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

Add ability to create, import and modify layers (optional content) in a PDF document.

Support for forms. The feature is named 'Interactive forms' in the PDF specification.

Main scenarios to consider:

- Reading of the data in the forms.

- Writing data to the forms.


Available in R2 2017 Release

From R1 2017 all annotations (including sound and video) are supported for import-export scenarios by using PdfStreamWriter class. 

These feedback item will be opened as we may add API for generating and inserting new sound annotations from scratch in the file.

Currently, similar scenario may be achieved by converting Tiff images to BitmapSource and inserting them to RadFixedPage as images by using FixedContentEditor.
Note: A sample approach how to achieve such functionality is demonstrated in the Converting Multi-page TIFF Images to PDF KB article.

Support conversion of XPS documents to PDF using RadPdfProcessing.

As one can use annotations we should support attachments per page or per pdf-file.

Encryption Algorithm 4 is implemented for R1 2018 official release. This includes all encryptions except AES 256 which is related to Encryption Algorithm 5. For AES 256 you may vote and follow this feedback item:
https://feedback.telerik.com/Project/184/Feedback/Details/240154-pdfprocessing-support-encryption-algorithm-5-with-aes-256