Last Updated: 03 Jun 2019 10:52 by ADMIN
Some documents result in glyphs with wrong widths after import-export. Widths are mixed making some of them to overlap and others to have bigger distance.
Last Updated: 28 May 2019 14:42 by ADMIN
After signing a document using the PdfProcessing library and the document is loaded in Adobe Acrobat an error is shown when the signature widget is clicked:
Error during signature verification.  

Adobe Acrobat error.
Expected a dict object.
Last Updated: 15 Apr 2019 14:56 by ADMIN
For example, importing URI Action with invalid mailto URL scheme - mailto:***@***.**(E-mail), throws UriFormatException: 'Invalid URI: The hostname could not be parsed.'
Last Updated: 18 Mar 2019 09:45 by ADMIN
By specification, the document AcroForm contains fields with no parents. However, some documents may have child fields in the AcroForm. This leads to ArgumentException when importing the child and parent fields - 'An item with the same key has already been added.' since the child field is added twice.
Last Updated: 07 Mar 2019 08:39 by ADMIN
When creating a GradientStop, an alpha channel of the color could be applied. However, this setting is not respected it the result document and the gradient is with full opacity.

Steps to reproduce:
1. Create a gradient with an alpha channel:

RadFixedDocument document = new RadFixedDocument();
RadFixedPage page = document.Pages.AddPage();
FixedContentEditor containerEditor = new FixedContentEditor(page);

LinearGradient linearGradient = new LinearGradient(new Point(0, 0), new Point(30, 30));
linearGradient.GradientStops.Add(new GradientStop(new RgbColor(10, 0, 207, 0), 0));
linearGradient.GradientStops.Add(new GradientStop(new RgbColor(10, 0, 102, 204), 1));

containerEditor.GraphicProperties.FillColor = linearGradient;
containerEditor.DrawRectangle(new Rect(10, 10, 48, 29));

2. Export the document to PDF

Observed: The alpha channel is not respected and the gradient is with full opacity
Last Updated: 28 Feb 2019 13:55 by ADMIN
When opened in Adobe Reader it says that the file "claims compliance". However, when verifying the compliance with some validation tools there seem to be some issues mainly related but not limited to fonts. 
Last Updated: 27 Feb 2019 09:31 by ADMIN
By specification the last line of the file contains only the end-of-file marker, %%EOF. When importing document with missing EOF, InvalidOperationException: 'Stack empty', is thrown.
Last Updated: 07 Feb 2019 13:23 by ADMIN
By specification the explicit destinations define a required page property. However, some documents contain definition for destinations with null page value, which causes an ArgumentNullException on import.
Last Updated: 31 Jan 2019 16:26 by ADMIN
When a document is exported with a cross-reference stream, the stream is missing the required according to the specification Length property. Although most of the viewers open the document without any issues, some cannot. Such documents cannot be opened in MS Edge.
Last Updated: 31 Jan 2019 13:30 by ADMIN
Created by: Tanya
Comments: 4
Category: PdfProcessing
Type: Bug Report
When merging, only the widgets are copied but not their fields. This can lead to ArgumentNullException when exporting the document. Implement copying the fields and consider cases which include collision of names of the fields.

Repair the generated document using the following code:
foreach (Widget widget in this.pdfDocument.Annotations.Where(annot => annot.Type == AnnotationType.Widget))
    if (!this.pdfDocument.AcroForm.FormFields.Contains(widget.Field.Name))
In case of Name collision, you can use the attached project or the attached project to the following feedback item to rename the duplicate fields: Provide a way to rename FormFields.
Last Updated: 22 Jan 2019 16:20 by ADMIN
The case is invalid according to the specification but all readers manage to open the document and allow editing its fields. The document can be also opened in RadPdfViewer but without the fields and the widgets.
Last Updated: 21 Dec 2018 07:01 by ADMIN
The appearance dictionary specifies how the annotation is presented visually on the page. If the appearance missing or is empty in PDF document NullReferenceException is thrown on import. 

Last Updated: 17 Dec 2018 12:59 by ADMIN
When documents are exported to PDF, the creation date and modification date are not expected, or, when the time zone is with negative offset, the documents are invalid (detected by validation tools).
Last Updated: 06 Nov 2018 14:39 by Georgi
When importing document with predefined ToUnicode CMaps (e.g. Identity-H), an InvalidCastException is thrown with cause: 

Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfName' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.CMaps.ToUnicodeCMap'.
Last Updated: 26 Oct 2018 14:46 by ADMIN
Stencil color has to be preserved for images with ImageSource when ImageMask property set to true. Not preserving it results in wrong colors (for instance the image may be visualized as a black rectangle).

Available in R1 2019 Official Release Version.
Last Updated: 22 Oct 2018 20:11 by ADMIN
The tj operator is responsible for drawing text content. When such operator is left empty, the import throws NullReferenceException because of the missing operands.

Available in LIB Version 2018.3.1022.
Last Updated: 15 Oct 2018 14:04 by ADMIN
This type of fields is currently not supported: . However, the fields can be skipped and the other content can be imported without throwing an exception.

Fix available in R3 2018 SP1 release.
Last Updated: 15 Oct 2018 13:51 by ADMIN
When the string contained in a PdfHexString instance is empty, invoking ToString() leads to IndexOutOfRangeException.

Available in R3 2018 SP1 release version.
Last Updated: 09 Oct 2018 11:49 by ADMIN
A font descriptor can be used by several fonts. However, when first a TrueType font is imported, later trying to import a Cid font leads to InvalidCastException with the message: "Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Fonts.FontDescriptor' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Fonts.CidFontDescriptor'."

Fix available in R3 2018 SP1 release.
Last Updated: 01 Oct 2018 14:00 by ADMIN
In this case, we should use a default alpha source value which is the opacity source.