Dear,
Please add bookmarks to the pdf reader.

Best regards.

Carlos Palomino.

Provide a way through UI and programmatically to load password-protected pdf documents in PdfViewer.

Error message is: "One or more errors occurred. 
(Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfName' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfInt'.)"

The current implementation relies on valid cross-reference offsets in the PDF documents so that PDF objects are easily found and parsed. However, we may implement a mechanism for importing documents with invalid offsets for the objects inside the table.

KeyNotFoundException exception is thrown when the platform type is MacintoshNonSymbolic and the encoding is WinAnsiEncoding.

Some Image XObjects are imported but not displayed in PdfViewer.  This behavior usually occurs when the document contains scanned images.

Some Image XObjects are imported but not displayed in PdfViewer.

When User changes LayoutMode the ZoomLevel property changed event should also be fired. I have a Numeric Textbox to adjust viewer ZoomLevel and would like to see its text update on a LayoutMode change. However when LayoutModeChanged fires the ZoomLevel has not yet changed nor does ZoomLevelChanged later fire.

where if in this mode, the zoom level will be changed upon the user changing the current page (via scrolling or navigating). 

When PdfViewer is located inside Popup control, it does not take its size properly.

implement annotations handling when RadFixedDocument is imported with PdfProcessing

By specification, names are an atomic symbol uniquely defined by a sequence of characters. However, when importing a document with names defined as an empty sequence a handled InvalidCastException is thrown which leads to missing page content.

Allow programmatic navigation of the viewport of the PdfViewer.

A remote go-to action is similar to an ordinary go-to action but jumps to a destination in another PDF file instead of the current file.

Even small documents containing images encoded with CCITTFaxDecode filter can take about 10 seconds to be opened.

If you download the pdf document from the internet, save it to the device and try to show it inside PdfViewer, it will not be loaded on Xiaomi phones with MIUI 12.1. and above.

Users report similar issues with downloaded files on MIUI devices, here are a few discussions on the matter:

https://www.reddit.com/r/Xiaomi/comments/l3x5db/miui_12130_broke_file_permissions_on_mi10_lite/

https://www.reddit.com/r/Xiaomi/comments/mx05ur/file_downloading_issues_on_my_xiaomi/

It seems that's the same reason for the PdfViewer not showing downloaded pdf files as it properly shows pdf documents added as embedded resource to the solution.

System.ArgumentException: Unsupported touch action type.
Parameter name: actionType
   at Telerik.XamarinForms.SkiaSharp.Interaction.SkiaViewInteractionAdapter.Convert(SKTouchAction actionType)
   at Telerik.XamarinForms.SkiaSharp.Interaction.SkiaViewInteractionAdapter.OnTouch(SKTouchEventArgs e)
   at Telerik.XamarinForms.SkiaSharp.Interaction.SkiaViewInteractionAdapter.GlView_Touch(Object sender, SKTouchEventArgs e)
   at SkiaSharp.Views.Forms.SKGLView.OnTouch(SKTouchEventArgs e)

is thrown when scrolling the document using the mouse wheel and using latest official SkiaSharp Views Forms version 2.80.3

Support for horizontal scrolling the Pdf document in the viewer: 
Horizontal single page (go through the pages swiping/scrolling left and right)
Horizontal multi-page stacked (not possible, go through the pages swiping/scrolling left and right)

The glyphs are rendered with additional unexpected lines when a specific custom Type 1 font is used to show them.

Provide support for lots of image formats when exporting PDF documents.

Zooming on physical devices does not work properly (gets stuck). Same behavior when scrolling and panning the document 

 

When trying to scroll, pan, and zoom, these gestures open the flyout menu, not to the document in the viewer.