Unplanned
Last Updated: 23 Jun 2022 08:13 by ADMIN
Handle the cases when the page is rendered slowly and the document appears empty
Unplanned
Last Updated: 09 Jun 2022 10:57 by Darcy
Created by: Darcy
Comments: 0
Category: PDFViewer
Type: Bug Report
1
The PdfViewer has slow performance when rendering images that have large size but are scaled down.
Unplanned
Last Updated: 06 Jun 2022 07:27 by Rahul
An invalid certificate is not imported correctly and causes exception on export. We should be able to handle this and skip the import without breaking the file. 
Unplanned
Last Updated: 27 May 2022 06:33 by ADMIN
Some Image XObjects are imported but not displayed in PdfViewer.

It seems all the documents contain scanned images produced by a Lexmark scanner.
Unplanned
Last Updated: 28 Apr 2022 07:25 by ADMIN
When displaying PDF-Files using PDFViewer, ContentElementsCanvas .RenderAsync uses reflection (DispatcherObjectUtils.ApplyDispatcher) to render Visuals on multiple threads.
However this leads to a memory leak since the dispatchers cant be GC'ed, see screenshot below.




The Screenshot is from the actual application we expirienced this issue with, the attached reproduction example is a boiled down version of what your code does.
If you wanna reproduce this on your own, create an application that uses PdfViewer that switches between many pdf files. The ammount of Dispatchers will grow steadily, probably to a total of the number of threads used by Task.Factory.

Completed
Last Updated: 08 Apr 2022 07:29 by ADMIN
Release LIB 2022.1.411 (11 Apr 2022)
Created by: Bjarke
Comments: 0
Category: PDFViewer
Type: Bug Report
0
The leak is reproducible when printing documents without UI and results in multiple instances of DocumentPrintPresenter kept alive in the memory.
Unplanned
Last Updated: 23 Mar 2022 07:23 by Joseph
The image quality is poor when rendering large images.
Unplanned
Last Updated: 22 Feb 2022 11:44 by Vojtech
PDFViewer crashes, when used on a tablet, Text selection is activated and text is selected in Touch mode.
Completed
Last Updated: 07 Feb 2022 14:06 by ADMIN
Release R1 2022 SP1
Created by: Jose Ramon
Comments: 0
Category: PDFViewer
Type: Bug Report
1

A rectangle is rendered as a solid rectangle instead of a rectangle with no fill.

Unplanned
Last Updated: 25 Jan 2022 12:58 by ADMIN

Observed when loading a document: 

Unplanned
Last Updated: 04 Jan 2022 09:37 by ADMIN
When the Textbox` text alignment is set to top (multiline) left when entering in edit mode the alignment is changing to center-left (check the attached record.gif).
Unplanned
Last Updated: 19 Nov 2021 09:00 by ADMIN

It is actually checked and only the appearance is wrong. When the file is saved the checkboxes states are as expected.

This behavior is observed with PdfImportSettings.ReadOnDemand setting only.

Unplanned
Last Updated: 10 Nov 2021 09:08 by Oliver
COMException: 'Exception from HRESULT: 0x8052000C' breaks the printing of the a specific document.
Unplanned
Last Updated: 29 Oct 2021 06:20 by ADMIN
Scanned image is not visible with the new engine  
Unplanned
Last Updated: 27 Oct 2021 13:34 by ADMIN

While all the pages and components of the control are rendered on the image, the content is completely missing from it. The issue is a regression caused by the migration of the model and its async rendering introduced in R3 2020.

Workaround: Fallback to the old rendering engine:

  • Changing the default behavior:

 this.pdfViewer.DefaultImportSettings.UseOldRendering = true;

  • Setting the property to the format provider used to show the document:

PdfImportSettings settings = PdfImportSettings.ReadOnDemand;
settings.UseOldRendering = true;

 

Unplanned
Last Updated: 26 Oct 2021 08:03 by ADMIN
When the color of the image is using the CMYK color model, DctDecode filter is applied, and there is no ColorTransform set the colors of the image are inverted.
Completed
Last Updated: 21 Oct 2021 13:54 by ADMIN
Release LIB 2021.3.1025 (25 Oct 2021)
PDFViewer: InvalidOperationException (The calling thread cannot access this object because a different thread owns it) when scrolling a specific document.
Completed
Last Updated: 19 Oct 2021 13:47 by ADMIN
Release LIB 2021.3.1025 (25 Oct 2021)
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.
Unplanned
Last Updated: 19 Oct 2021 06:42 by ADMIN
Due to excessive memory consumption when decoding images, OutOfMemoryException can be thrown when viewing documents with large images inside them. 

Workarounds: 
- Set ExtensibilityManager.MaxImageSize = null. This will skip one resizing step, and could be beneficial in documents containing few large images.
- Use 64-bit process for the client application. This allows the process to consume much more memory. Note that starting 64-bit process while debugging can be tricky, as described in this blog post: https://weblog.west-wind.com/posts/2016/Dec/19/Visual-Studio-Debugging-and-64-Bit-NET-Applications.

Available in R1 2018 Official release version.
Unplanned
Last Updated: 11 Oct 2021 13:50 by ADMIN

The rendering of the image is not fully parsed and the next attribute cannot be properly read. 

System.InvalidCastException: 'Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfArray' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfInt'.'

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