Approved
Last Updated: 04 Dec 2019 20:03 by ADMIN
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.
Approved
Last Updated: 04 Dec 2019 19:51 by ADMIN
WPF controls are used to visualize the form fields in PdfViewer. However, these controls inherit the background defined in the PdfViewer's theme instead of a background of the form field control. This leads to wrong visualization mostly in the dark themes as the content inside the form field might get unreadable.
Approved
Last Updated: 15 Nov 2019 08:29 by ADMIN
Documents containing large images are slow to decompress and decode.
Completed
Last Updated: 01 Oct 2019 13:27 by ADMIN
Release 2019.3.1007 (10/07/2019)
When RadPdfViewer is created on UI thread different than the Application main thread, an InvalidOperationException: 'The calling thread cannot access this object because a different thread owns it.' is thrown when calling the Copy method.
Approved
Last Updated: 05 Sep 2019 12:53 by ADMIN
The character is visualized as '3'. The same issue is also reproducible when the content is copied from Adobe.
Approved
Last Updated: 07 Aug 2019 10:23 by ADMIN
Loading document containing link with no destination leads to ArgumentNullException in PdfElementToFixedElementTranslator.CreateDestination method.
Approved
Last Updated: 25 Jul 2019 07:16 by ADMIN

When importing a document with empty pages collection an ArgumentNullException: 'Value cannot be null.
Parameter name: page', is thrown, which leads to application crash.

Workaround: Import the document using the PdfProcessing library and add an empty page:

PdfFormatProvider pdfProcessingFormatProvider = new PdfFormatProvider();
RadFixedDocument document = pdfProcessingFormatProvider.Import(stream);
  
if (document.Pages.Count == 0)
{
    document.Pages.AddPage();
}

 

Approved
Last Updated: 24 Jul 2019 17:38 by ADMIN
The CIDFont dictionary may contain an array, describing the widths of the glyphs. If the width has a negative value an ArgumentException: 'Width and Height must be non-negative.', is thrown when the document is imported in RadPdfViewer, which leads to application crash.
Approved
Last Updated: 28 Jun 2019 11:22 by ADMIN
By specification, the InteractiveForm fields can have the same name if they are descendants of a common ancestor. Such fields are different representations of the same underlying field; they should differ only in properties that specify their visual appearance. When such a document is imported an ArgumentException: 'An item with the same key has already been added.' is thrown, which leads to non-editable fields in RadPdfViewer.
Approved
Last Updated: 04 Jun 2019 18:29 by ADMIN
The EI keyword defines an operator for ending the image data. When the stream contains the same sequence, the parser treats that as an end of the image data. As a result, the image and the following content cannot be properly parsed and there is missing content when the document is visualized.
Approved
Last Updated: 04 Jun 2019 18:26 by ADMIN
The offset of the CropBox is not respected and is always treated as 0.

Workaround: Import the document with PdfProcessing, change the CropBox offsets of the pages to 0, export the modified document and then import it in PdfViewer.
Approved
Last Updated: 24 May 2019 13:49 by ADMIN
Telerik.Windows.Zip.InvalidDataException for unknown (0xAD) compression method is thrown for some object streams.
Declined
Last Updated: 27 Jun 2019 10:32 by ADMIN
When the FixedDocumentSinglePagePresenter content control is used to visualize PDF files in custom PDF viewer implementation a raise condition can be occurred leading to NullReferenceException with the following stack trace:
at Telerik.Windows.Documents.Fixed.UI.UIElementsHelper.FillPageContentElementsInPanel(Canvas container, RadFixedPage page)
at Telerik.Windows.Documents.UI.FixedDocumentSinglePagePresenter.CreateContent(RadFixedPage page)
at Telerik.Windows.Documents.UI.FixedDocumentSinglePagePresenter.PageLoader_WorkCompleted(Object sender, WorkCompletedEventArgs e)
at Telerik.Windows.Documents.Utilities.ResourceLoader.OnWorkCompleted(WorkCompletedEventArgs args)
at Telerik.Windows.Documents.Utilities.ResourceLoader.Worker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

The exception is thrown since the current page is unloaded while the content is being parsed.
Approved
Last Updated: 11 Apr 2019 10:32 by ADMIN
We should implement the logic for getting character codes from Unicode when using CFFFontSource.
Workaround: The font may be changed by creating a similar font with FontsRepository.TryCreateFont(...) method.
Approved
Last Updated: 11 Apr 2019 10:14 by ADMIN
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.
Approved
Last Updated: 07 Mar 2019 15:56 by ADMIN
OverflowException is thrown while importing document using Helvetica font with custom encoding.
Completed
Last Updated: 07 Mar 2019 09:41 by ADMIN
When loading documents with CFF (Compact Font Format) font source containing .notdef glyph, System.ArgumentException: 'An item with the same key has already been added.', is thrown.
Approved
Last Updated: 14 Feb 2019 09:32 by ADMIN
Text characters are missing when document is loaded in RadPdfViewer. When Fit to Page is used then numerous text characters vanish. They do not reappear when zooming back in.
Approved
Last Updated: 13 Feb 2019 14:46 by ADMIN
When RadPdfViewer is in text selection mode and the user is trying to select a word by double-clicking on it, the last letter of the word is not selected when the word is followed by some symbols like '.', ':', '(', '...'
Declined
Last Updated: 14 Feb 2019 16:16 by ADMIN
  • Create new WPFApplication.
  • Add a RadPdfViewer to the main window
<Window x:Class="YourProject.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MaquetteTelerikPDFViewer"
        mc:Ignorable="d"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"      
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <telerik:RadPdfViewer x:Name="pdfViewer"/> 
    </Grid>
</Window>
  • Open the pdf file
    public partial class MainWindow: Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        protected override void OnInitialized(EventArgs e)
        {
            base.OnInitialized(e);
            using(Stream stream = new FileStream(@"radExport.pdf",FileMode.Open,FileAccess.Read)){
                pdfViewer.Document = new PdfFormatProvider(stream).Import();
            }
        }
    }

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