When importing a document with button field with missing type, an error occurs.

51 0 obj
<< /Kids [ 70 0 R 71 0 R 72 0 R 73 0 R 74 0 R 75 0 R 76 0 R 77 0 R 78 0 R 79 0 R 80 0 R 81 0 R 82 0 R 83 0 R 84 0 R 85 0 R 86 0 R 87 0 R 88 0 R 89 0 R 90 0 R 91 0 R 92 0 R 93 0 R 94 0 R 95 0 R 96 0 R 97 0 R 98 0 R 99 0 R 100 0 R 101 0 R 102 0 R 103 0 R 104 0 R 105 0 R 106 0 R 107 0 R 108 0 R 109 0 R 110 0 R 111 0 R 112 0 R 113 0 R 114 0 R 115 0 R 116 0 R 14 0 R ] /T (Button 70) >>
endobj

Workaround: Handle the exception: https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/features/handling-document-exceptions 

When importing a document with an invalid creation or modification date, an exception is thrown:

• FormatException: 'The input string '' was not in a correct format.'
• ArgumentOutOfRangeException: 'Year, Month, and Day parameters describe an unrepresentable DateTime.'

When a Pdf document contains TextBoxFields some of which are hidden and you merge it with another document, the hidden state is reset and the field appears in the merged document:

Before:

After:

When trying to create documents simultaneously from different threads (in concurrent scenario), different exceptions are thrown: 

- NullReferenceException in Telerik.Windows.Documents.Core.Fonts.OpenType.OpenTypeFontSource.ReadTableData[T](UInt32 tag, ReadTableFormatDelegate`1 readTableDelegate) method, 

- OverflowException in Telerik.Windows.Documents.Core.Fonts.OpenType.Tables.CMapFormat4Table.Read(OpenTypeFontReader reader) method.


Available in LIB version: 2017.2.814

This would allow to disallow some rows from splitting.

 This is content stream operator used for setting color in Device, CIE-based or Indexed color space.

Available in R2 2018 Official Release version.

Currently every text fragment is exported by specifying all its properties. When there are many fragments one after another we may skip specifying the properties for every single fragment. This will improve both memory and time consumption performance.

Measuring big paragraphs is time consuming and may be optimized.

The method should create deep copy of  the current page.

Possibility to convert a PDF file to EPS file.

PDF Editor: the pdfiewer will now have a feature to perform the following:

Sort pages by dragging and dropping selected pages.
After adding stamps/annotations on the page, user will be able to move around those objects by dragging and dropping.

These images are defined directly in the PDF page content stream with BI and EI operators. Currently InvalidCastException is thrown when document with such images is imported.

Available in R1 2018 SP2 release version.

Currently, when writing RadFixedPage the page instance reference is cached, as well as its content resources (images and fonts). This cache is important as it allows to reuse pages, images and fonts without writing them multiple times in the result PDF document. However, it needs to be optimized in order to consume less memory. 

The attached demo shows how to create 2500 pages with big images (different image on each page). With the current version, this demo consumes about 3 GB memory which may lead to OutOfMemoryException. With the optimization that will be introduced in LIB version, the same demo will consume about 20 MB memory for writing this big PDF document.

Available in LIB version: 2017.1.320