Unplanned
Last Updated: 30 Mar 2020 16:10 by Denis
Visualizing a page with a huge number of images (40000) freezes the application.
When switching to the FixedDocumentSinglePageViewPresenter, all the page content should be loaded so it can be later rendered. Although the images are loaded asynchronously, there are too many threads started which seems to cause the hang. Also, according to profiling results, it seems like the image caching causes performance diminishments in such scenarios. 
Unplanned
Last Updated: 03 Mar 2020 14:10 by ADMIN
When the font is not embedded in the document, PdfViewer tries to read it from the OS. However, the Calibri-Font is not properly parsed and a NullReferenceException is thrown internally for its encoding. 
Unplanned
Last Updated: 06 Feb 2020 13:45 by ADMIN
The stroke is not rendered when the text is in XForm
Unplanned
Last Updated: 03 Feb 2020 10:42 by ADMIN

To reproduce:

- Search for a specific word until the last occurrence is found and a message appears. 

- Click the FindPrevious button

Result: A message appears.

Expected: The previous entry is selected. 

Unplanned
Last Updated: 15 Jan 2020 14:50 by ADMIN
Document with invalid cross-reference stream is not loaded correctly
Unplanned
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.
Unplanned
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.
Unplanned
Last Updated: 15 Nov 2019 08:29 by ADMIN
Documents containing large images are slow to decompress and decode.
Unplanned
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.
Unplanned
Last Updated: 07 Aug 2019 10:23 by ADMIN
Loading document containing link with no destination leads to ArgumentNullException in PdfElementToFixedElementTranslator.CreateDestination method.
Unplanned
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();
}

 

Unplanned
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.
Unplanned
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.
Unplanned
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.
Unplanned
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.
Unplanned
Last Updated: 24 May 2019 13:49 by ADMIN
Telerik.Windows.Zip.InvalidDataException for unknown (0xAD) compression method is thrown for some object streams.
Unplanned
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.
Unplanned
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.
Unplanned
Last Updated: 07 Mar 2019 15:56 by ADMIN
OverflowException is thrown while importing document using Helvetica font with custom encoding.
Unplanned
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.
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