When exporting a RadFixedDocument, which contains a signature added with PdfProcessing a NotSupportedException is thrown: 'Stream does not support reading.'

Exception when saving a document that is being used by another process

When there is no ToUnicode CMap, the text from the Simple Font instance should be extracted by mapping the glyph name to its corresponding charcode according to Adobe Glyph List. Additionally, the Differences array should be included in these calculations when there is custom encoding. The current implementation of RadPdfViewer makes ToString to the original char id byte value which leads to wrong characters. 

The default radio button state is not displayed correctly with specific documents

This is not a valid PDF scenario as having appearance state requires having multi-state appearances. However, we should handle this invalid document scenario on our side so that the app does not crash with NullReferenceException.

The CID font may define a description of the glyph widths. By specification, the widths can be defined in two ways - with start and end CID codes or with and an array of CID codes. However, the current implementation supports only CID arrays as direct property and not as an indirect object. This leads to incorrectly imported glyph widths and text positioning issues.

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.

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.

Some files when opened with PdfViewer will throw a KeyNotFoundException which will be handled. Parts of the text in the file might or might not be missing.

The exception is thrown during "Put" operator execution.

It is actually checked and only the appearance is wrong. When the file is saved the checkboxes states are as expected.

Please refer to the attached gif file and notice the loading delay when scrolling to a specific page. It would be nice to optimize this experience.

Memory leaks when opening a large file several times. 

The issue is reproducible only for some specific font files. The characters are displayed as rectangles. This seems to caused by incorrect glyph name and glyph id mapping.

Incorrectly displayed type 3 fonts with a specific file

Import documents that use this type of encryption. Currently, a handled NotSupportedEncryptionException with message "The encryption method with code 5 is not supported." is thrown while importing such a document.

Loading corrupt PDF results in non-trappable error and exception

When importing a document containing a single associated widget annotation merged into the field dictionary the field is skipped on import and an exception is thrown.

According to the PDF Specification: Field Dictionaries: Kids:

An array of indirect references to the immediate children of this field.
In a non-terminal field, the Kids array is required to refer to field dictionaries that are immediate descendants of this field. In a terminal field, the Kids array ordinarily must refer to one or more separate widget annotations that are associated with this field. However, if there is only one associated widget annotation, and its contents have been merged into the field dictionary, Kids must be omitted.

Hi,

The RadPdfViewer ExportPages is broken in the new release. It works in the previous version.

 

        Dim bmpArray As List(Of Bitmap) = pdfview.ExportPages(1.0, True, Imaging.ImageFormat.Png) = null