You could repair the invalid file using the project from the attachment.

The fix will be available in our official release 2015 Q2. 

The fix will be available in our official release 2015 Q2.

This item is declined because there are many PDF annotation types and we are going to create separate items for each type. You may follow some of the existing annotation feedback items listed below or create a new one which the Telerik team is going to approve. Here follows the list of the existing feedback items:
https://feedback.telerik.com/Project/143/Feedback/Details/167439-pdfviewer-support-for-annotations-of-type-stamp
https://feedback.telerik.com/Project/143/Feedback/Details/203379-pdfviewer-support-for-annotations-of-type-popup
https://feedback.telerik.com/Project/143/Feedback/Details/199351-pdfviewer-support-for-freetext-annotation-type
https://feedback.telerik.com/Project/143/Feedback/Details/149974-pdfviewer-highlight-annotation

This will allow import of Tensor-product patch mesh gradients.

The feature is available in our latest LIB release (v. 2014.3.1103)

Do not hesitate to contact us if any issues or questions arise.

When you have a text box in a custom layer, the page presenter gets the focus and does not allow you to focus the text box.

The fix will be available in our official release 2015 Q2. 

JavaScript actions causes a script to be compiled and executed by the JavaScript interpreter. Depending on the nature of the script, the values of the interactive form fields in the document can be validated or updated or the visual appearances of the fields can be changed.

If the appearance is defined using a non-existing object reference in PDF document, NullReferenceException is thrown on import. 

Due to Silverlight limitations, currently only the user can specify which pages to be printed. We will consider implementing this custom functionality.

This is reproducible only with specific documents which reuse big images content throughout pages.

Available in LIB Version 2018.1.205.

There will be a workaround for this issue for 2013 Q3 SP1. The CompressImages property of the ExtensibilityManager needs to be set to false, which will resolve the issue but the images won't be compressed.

The character is rendered with different glyph geometry and wrong glyph width which results in overlapping text.

Available in R1 2017 Release

The fix will be available in our official release Q2 2015 SP.