Hello support team,

We faced an exception that ShadingType 1 is not supported. Can you please confirm that this is expected?

Regards,
Vitalii

SkiaImageFormatProvider: Blacked out images due to incorrectly resolved clipping.

Add support for documents with an invalid stream cross-reference table

Handle the import of incrementally updated documents with invalid cross-reference offsets.

When import-export a document with embedded font(s) and FontEmbeddingType.Subset set, the subset collection is not updated, and the originally imported font is exported unmodified.

Setting the ComplianceLevel to PdfA3B and the TaggingStrategy to UseExisting when exporting a PDF document leads to the following Error reported by VeraPdf:

Specification: ISO 19005-3:2012, Clause: 6.2.11.5, Test number: 1
For every font embedded in a conforming file and used for rendering, the glyph width information in the font dictionary and in the embedded font program shall be consistent.
Glyph width 274.4140625 in the embedded font program is not consistent with the Widths entry of the font dictionary (value 272)

Content is moved from the second page to the first after applying styling to the footer and exporting to PDF format

The issue is reproducible only in a specific setup with a specific document. It is related to the calculations of the line spacing when the table row should be split between two pages.

Workaround: Change the line spacing:
foreach (var paragraph in this.document.EnumerateChildrenOfType<Paragraph>())
{
    paragraph.Properties.LineSpacingType.LocalValue = HeightType.Auto;
    paragraph.Properties.LineSpacing.LocalValue = 1;
}

HtmlFormatProvider: NullReferenceException is thrown when exporting a document that contains styles with no ParagraphMarkerProperties.

This is caused by hasSize field in ShapeBase class which is set when decoding the image size. However, when SetWidth and SetHeight methods are called before the size is initialized the value of hasSize is false which causes the issue.

Workaround: Call the Size property getter before calling SetWidth/SetHeight method. See the code below:

// This line workarounds the issue with SetWidth method which does not get the correct size when locking aspect ratio. 
Size size = imageInline.Image.Size;
imageInline.Image.SetWidth(true, width);

Currently empty paragraphs are exported to HTML with one space inside. Such paragraphs are not rendered by the browser. Such paragraph should be exported to HTML with one non-breaking space (@nbsp;) inside to ensure that they are visible in the browser.

Workaround: manually add nbsp-s in all empty paragraphs:
paragraph.Inlines.AddRun("\u00a0");


Steps to reproduce:
- Create document with empty paragraphs:

                        var document = new RadFlowDocument();
                        Section section = document.Sections.AddSection();
                        section.Blocks.AddParagraph();
                        section.Blocks.AddParagraph();
                        section.Blocks.AddParagraph();
                        section.Blocks.AddParagraph().Inlines.AddRun("test");

- Export it to HTML.

- Load the HTML in a browser.

Expected: The word 'test' is preceded by 3 empty rows.

Actual: The word 'test' is on the first row.

Some PDF files have an additional content added before the file header (before %PDF-1.4 for example). This additional content makes all byte offsets in the document invalid, which causes the format provider to throw an exception.

At this point, to import a similar document it should be pre-processed so the content before the version header is removed before importing it.

Please check the attached pdf document showing incorrect stamp processing.

Files exported with SpreadStreamProcessing cannot be read by OleDB consumers

MissingMethodException is thrown when converting a PDF stream to a PdfArray.

During export operation of a document that contains signature fields the following error occurs: 

System.InvalidOperationException: 'The signature was not properly initialized for external signing. The signing delegate is missing.'

Resaving a document with Acrobat throws an error due to invalid Info dictionary in document trailer.

The "w:multiLine" property of a text content control is lost on import-export.

PdfFormatProvider: Incorrect column width for tableGrid tables with merged cells.

Tab stop distances are not calculated correctly during PDF export if a hanging indent is applied.