Unplanned
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).

Unplanned
Last Updated: 16 Jun 2021 05:05 by ADMIN
The document seems empty when loaded in the viewer.
Unplanned
Last Updated: 10 Feb 2022 11:03 by ADMIN
Allow passing specific pages (e.g. "1, 4, 6") and more than one page range (e.g. "1-3, 6-7") to the print dialog`s Pages page range.
Completed
Last Updated: 12 Aug 2021 07:32 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.
Unplanned
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;

Completed
Last Updated: 14 Jun 2021 11:58 by ADMIN
Release R2 2021 SP1

The object definitions are split into several lines:

Unplanned
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). 
Unplanned
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;

Unplanned
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. 
Unplanned
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.


Unplanned
Last Updated: 20 Apr 2021 13:03 by ADMIN
When the document contains an invalid code space range in the embedded CMap table the CMap table is not correctly imported, which leads to wrong character mapping in the text selection.
Unplanned
Last Updated: 16 Apr 2021 12:04 by ADMIN
Exception if pdf has different orientations and the thumbnails are used
Completed
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
Unplanned
Last Updated: 25 Mar 2021 07:55 by ADMIN

According to the PDF specification (Adobe® Portable Document Format Version 1.7):
Append a rectangle to the current path as a complete subpath, with lower-left corner (x, y) and dimensions width and height in user space.

The operation: 

x y width height re

An invalid case:

0 - 595 -842 re

This leads to an exception thrown: System.NullReferenceException: 'Object reference not set to an instance of an object.'

Completed
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.
Unplanned
Last Updated: 05 Mar 2021 12:09 by ADMIN
According to the PDF specification: Codes are never longer than 12 bits; therefore, entry 4095 is the last entry of the LZW table.
Completed
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.
Unplanned
Last Updated: 23 Jun 2022 08:13 by ADMIN
Handle the cases when the page is rendered slowly and the document appears empty
Completed
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
0

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

Completed
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.