Approved
Last Updated: 18 Mar 2019 08:39 by ADMIN
This is reproducible for images with FlateDecode and predictor value in the range between 10 and 15. As an example you may take a look at the DecodeParms property in the following image PDF dictionary:

<< /BitsPerComponent 8 /ColorSpace /DeviceRGB /DecodeParms << /BitsPerComponent 8 /Colors 3 /Columns 1024 /Predictor 15 >> /Filter /FlateDecode /Height 2868 /Subtype /Image /Type /XObject /Width 1024 /Length 1236707 >>
Approved
Last Updated: 07 Mar 2019 16:39 by ADMIN
This is caused by an incorrect order of applying the TextMatrix and the glyph stroking operation.
Approved
Last Updated: 18 May 2018 14:17 by Georgi
When ScaleMode is set to FitToPage scrolling the Mousewheel or pressing the Arrow Down button does not produce immediate scroll. The page is scrolled to the next page after several scroll events/button presses are introduced.

Workaround: Provide custom ScrollCommand implementation.
Approved
Last Updated: 14 May 2018 17:07 by Georgi
This is reproducible when the matched result resides on different page.

Workaround: You may subscribe to the RadFixedDocument.CaretPosition.PositionChanged event and implement the scroll logic.
Completed
Last Updated: 19 Jun 2018 13:50 by ADMIN
RadPdfViewer's AcroForm property ViewersShouldRecalculateWidgetAppearances should be respected when being set to true. In this case, RadPdfViewer should recalculate all widget appearances and this would resolve the issue with empty form field widgets after opening such PDF document.
Completed
Last Updated: 30 Mar 2018 13:46 by ADMIN
An ArgumentException is thrown internally as the font name is null. However, the name is defined in the base font and can be obtained from it.

Fix available in LIB Version 2018.1.402.
Completed
Last Updated: 30 Mar 2018 14:56 by ADMIN
This is reproducible when the field VariableTextProperties has zero value for font size. 

Fix available in LIB Version 2018.1.402.
Approved
Last Updated: 12 Mar 2018 09:31 by ADMIN
This is not a valid PDF scenario as having appearance state requires having multistate appearances. However, we should handle this invalid document scenario on our side so that the app does not crash with NullReferenceException.
Completed
Last Updated: 03 May 2019 10:01 by ADMIN
This happens only in scenarios when the widget has On state appearance defined and Off state appearance missing. If both appearances are missing then RadPdfViewer recalculates the appearances and the checkbox is successfully selected and deselected.
Completed
Last Updated: 19 Mar 2018 11:16 by ADMIN
The file contains the following:
68.637 604.561 455.981 -107.996 re
72.237 604.561 l
S
Instead of the more usual
68.637 604.561 455.981 -107.996 re
S
72.237 604.561 l
S
Both are valid but the first seems to create a problem.

Fix available in LIB Version 2018.1.319.
Completed
Last Updated: 08 Mar 2018 11:49 by ADMIN
The exception is thrown when the RadioButtonField options array contains nested arrays instead of string values.

Fix available in LIB Version 2018.1.312.
Completed
Last Updated: 12 Dec 2018 09:52 by ADMIN
ADMIN
Created by: Deyan
Comments: 1
Category: PDFViewer
Type: Bug Report
2
This happens only in specific scenarios as most of the documents with annotations are visualized correctly.
Declined
Last Updated: 11 Feb 2019 12:42 by ADMIN
ADMIN
Created by: Tanya
Comments: 0
Category: PDFViewer
Type: Bug Report
1
Images decoded with CCITTFaxDecode filter affect the performance when showing the document.

This item is closed as a duplicate. Please, vote and follow the item at https://feedback.telerik.com/wpf/1353994-pdfviewer-slow-performance-of-ccittfaxdecode-filter.
Completed
Last Updated: 25 Jan 2018 13:57 by ADMIN
ADMIN
Created by: Anna
Comments: 0
Category: PDFViewer
Type: Bug Report
2
When a PDF is printed all images are omitted.

Available in R1 2018 SP1 version.
Approved
Last Updated: 10 Jan 2018 12:00 by ADMIN
This exception seems to be related to AES algorithm PaddingMode property. 
Approved
Last Updated: 10 Jan 2018 11:59 by ADMIN
This exception seems to be caused because the stream is not decrypted correctly and the stream data is corrupted. For instance when the stream is with FlateDecode filter the exception is InvalidDataException with message "Unknown compression method".
Completed
Last Updated: 06 Mar 2019 06:46 by ADMIN
This exception is thrown because there is field name with special characters which are incorrectly modified during the recalculation process of widget appearances. This exception is thrown in the internal RecalculateMissingAppearances method or in RecalculateWidgetAppearancesOld method.
Approved
Last Updated: 02 Jan 2018 14:10 by ADMIN
Setting Handle property to false should result in rethrowing the exception and interrupting current RadFixedDocument rendering. This is related to Exception Handling Mechanism mentioned in this documentation article: 

https://docs.telerik.com/devtools/wpf/controls/radpdfviewer/document-model/exceptionhandling
Completed
Last Updated: 26 Dec 2017 12:18 by ADMIN
ADMIN
Created by: Deyan
Comments: 0
Category: PDFViewer
Type: Bug Report
2
Loading page with a lot of text takes several minutes which is unacceptable. This performance issue is caused by class GlypInfoFactory, which caches the glyph information.

Available in LIB Version 2017.3.1225.
Completed
Last Updated: 15 Feb 2019 16:12 by ADMIN
For some fonts the issue is present. Some of them are:

KozGoPro-Medium

KozMinPro-Regular

KozGoPro-Bold