Last Updated: 13 Jul 2021 13:17 by ADMIN
Field values are lost on import-export using the PdfFormatProvider.
Last Updated: 28 Jul 2021 16:01 by Daniel
While scrolling a document containing many Link annotations there is a decrease in the performance.
Last Updated: 28 Jun 2021 13:03 by ADMIN

When importing a document containing a single associated widget annotation merged into the field dictionary the field is skipped on import and an exception is thrown.

According to the PDF Specification: Field Dictionaries: Kids:

An array of indirect references to the immediate children of this field.
In a non-terminal field, the Kids array is required to refer to field dictionaries that are immediate descendants of this field. In a terminal field, the Kids array ordinarily must refer to one or more separate widget annotations that are associated with this field. However, if there is only one associated widget annotation, and its contents have been merged into the field dictionary, Kids must be omitted.

Last Updated: 28 Jun 2021 07:14 by ADMIN

There are missing characters when importing documents containing Standard fonts with a Differences array defined in the Encoding, which contains characters that do not fit in the first 255 glyph definitions in the font. Most of these characters are the ones with an accent such as "ccaron" (č).

Last Updated: 16 Jun 2021 05:05 by ADMIN
Created by: Tomas von Peltzer
Comments: 0
Category: PDFViewer
Type: Bug Report
The document seems empty when loaded in the viewer.
Last Updated: 08 Jun 2021 10:17 by ADMIN
Release LIB 2021.2.608 (08 Jun 2021)
Importing of documents containing many Path geometries leads to OutOfMemoryException due to many created InherentProperty and delegate instances.
Last Updated: 02 Jun 2021 14:58 by ADMIN

Inserting PNG ImageSource into a document and applying the document instance directly to the RadPdfViewer`s Document property (without exporting to stream) leads to a wrong image rendering.

Workaround: Export the document with the PdfFormatProvider:

MemoryStream ms = new MemoryStream();
PdfFormatProvider pdfFormatProvider = new PdfFormatProvider();
pdfFormatProvider.Export(radFixedDocument, ms);

PdfDocumentSource source = new PdfDocumentSource(ms, pdfViewer.DefaultImportSettings);
this.pdfViewer.DocumentSource = source;

Last Updated: 26 May 2021 10:31 by ADMIN
When executing a Find command in Fit to Width scrolling mode (when more than one page and the result is on the next page) the search result is shown on the bottom of the page instead of the page being centered according to the content found, which results in the number of the current page as well (check the attached image). 
Last Updated: 26 May 2021 06:35 by ADMIN

Creating a PdfViewer instance without adding it in the visual tree, leads to leaked document presenter instances when the TouchManager is enabled.

Workaround: Disable the TouchManager:

Telerik.Windows.Input.Touch.TouchManager.IsEnabled = false;

Last Updated: 03 May 2021 08:35 by ADMIN
The editor text is not visible with some themes. Implement an event that allows you to access the active editor and change its properties. 
Last Updated: 27 Apr 2021 13:05 by ADMIN
The executing of the PostScriptReader`s Read method takes a lot of time when iterating content streams with many Path geometries.
Last Updated: 21 Apr 2021 07:04 by ADMIN

Currently, the PdfProcessing document model is providing support only for a single function in the Function entry.

According to the PDF Specification: Function: A 1-in, n-out function or an array of n 1-in, 1-out functions.

Last Updated: 16 Apr 2021 12:04 by ADMIN
Exception if pdf has different orientations and the thumbnails are used
Last Updated: 19 Apr 2021 10:56 by ADMIN
Release LIB 2021.1.419 (19/04/2021)
When the Text Rise ("Ts") operator is set the text baseline is moved in the opposite direction according to its default location.
BT 48 819.32 Td -16.6 Ts (Some text to display) Tj ET
Last Updated: 03 May 2021 07:15 by ADMIN
Release LIB 2021.1.329 (29/3/2021)
Invalid character rendering due to the glyphs caching.
Last Updated: 22 Feb 2021 14:59 by ADMIN
Release R1 2021 SP1
When importing a document containing a specific image encoded with JBIG2Decode an exception is thrown.
Last Updated: 20 Apr 2021 13:14 by ADMIN
Handle the cases when the page is rendered slowly and the document appears empty
Last Updated: 05 Mar 2021 12:46 by ADMIN
Release LIB 2021.1.309 (9/3/2021)
Created by: Daniel
Comments: 2
Category: PDFViewer
Type: Bug Report

Hi Telerik Support

We use your Telerik PDF-Viewer since your last Version "UI for WPF R1 2021" which supports Type 3 fonts.
Now the version runs productive by our customers. But after a day, they found some special PDFs that doesn't work quite right with your PDF-Viewer.

In the appendix you will find the PDf-Files as samples for the bugs that i'm describing.
Because of data privacy, the PDF-Files are cutted and cropped.
Also a demo project is appended (It could also be reproduced with the demo Progress Telerik WPF UI for th PDF-Viewer).

First Problem: Blank Page

Hint: It seems that only a few PDF-Files from a specific program seems to be a problem.

  1. Open Demo "WpfAppPdfViewer.exe"
  2. Open the file sample_1_blank_page.pdf(see appendix)
  3. You will see only a blank page
  4. Open the same PDF-File in another PDF-Reader like Adobe Reader and you will see a scan with an illegible stamp of an address

Second Problem: Displaying data delayed

  1. Open Demo "Progress Telerik UI for WPF"
  2. Open the file sample_2_delayed_display.pdf (see appendix)
  3. You will see only a blank page
  4. Wait approx. 5-10 sec. and you will see the content of the PDF-File.

I would be glad for a quick possible solution for our customer.

Best regards

Serge Schoop

Last Updated: 18 Mar 2021 07:17 by ADMIN
Release LIB 2021.1.315 (15/3/2021)
When the image has inverted colors and the color space is of type Separation the document is not decoded correctly and it is rendered with inverted colors.
Last Updated: 05 Feb 2021 11:54 by ADMIN
GetSubr method of Top class throws an exception when Private property is null.
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