Currently, a default constant value is used for the font size in this scenario.
For instance, we may implement WritePageAsync method in addition to the existing WritePage method. This is a similar scenario as in System.IO.StreamWriter class which has WriteLine and WriteLineAsync methods.
CryptographicException is thrown when saving with PdfStreamWriter or importing with PdfFormatProvider.
The exception: System.Security.Cryptography.CryptographicException: 'The input data is not a complete block.'
According to the PDF specification:
A clipping path operator (W or W*) may appear after the last path construction operator and before the path-painting operator that terminates a path object.
Invalid:
W % clipping path operator 0 0 m % start of the path construction 596 0 l 596 842 l 0 842 l h % end of the path construction n % path-painting operator
0 0 m 596 0 l 596 842 l 0 842 l h W n
Currently (in the invalid cases), the path construction is skipped on import.
This is the code for inserting the image:
static void Main(string[] args)
{
FixedExtensibilityManager.ImagePropertiesResolver = new ImagePropertiesResolver();
//Telerik.Windows.Documents.Extensibility.JpegImageConverterBase defaultJpegImageConverter = new Telerik.Documents.ImageUtils.JpegImageConverter();
//Telerik.Windows.Documents.Extensibility.FixedExtensibilityManager.JpegImageConverter = defaultJpegImageConverter;
//Output("fyb-64.png", "output-working.pdf");
Output("fyb.png", "output-broken.pdf");
}
private static void Output(string resourceName, string outputFileName)
{
var document = new RadFixedDocument();
using (var editor = new RadFixedDocumentEditor(document))
{
Stream image = new FileStream(resourceName, FileMode.Open);
var table = new Table
{
LayoutType = TableLayoutType.FixedWidth,
Margin = new Thickness(10, 0, 0, 0),
};
var row = table.Rows.AddTableRow();
var cell = row.Cells.AddTableCell();
var block = cell.Blocks.AddBlock();
block.InsertImage(image);
editor.InsertTable(table);
var pdfData = ExportToPdf(document);
File.Delete(outputFileName);
File.WriteAllBytes(outputFileName, pdfData);
Process.Start(new ProcessStartInfo() { FileName = outputFileName, UseShellExecute = true });
}
}
private static byte[] ExportToPdf(RadFixedDocument document)
{
byte[] pdfData;
using (var ms = new MemoryStream())
{
var pdfFormatProvider = new PdfFormatProvider();
pdfFormatProvider.Export(document, ms);
pdfData = ms.ToArray();
}
return pdfData;
}Workaround: Instead of setting the ImagePropertiesResolver, set the JpegImageConverter:
Telerik.Windows.Documents.Extensibility.JpegImageConverterBase defaultJpegImageConverter = new Telerik.Documents.ImageUtils.JpegImageConverter();
Telerik.Windows.Documents.Extensibility.FixedExtensibilityManager.JpegImageConverter = defaultJpegImageConverter;
When loading some PDF documents with German culture, part of the text got missing.
Workaround: set English culture before loading the document
Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
Currently RadPdfProcessing allows setting standard fonts using FontsRepository static properties. However, in RadWordsProcessing font can be set only by specifying FontFamily, FontWeight and FontStyle. As there is no way to set standard fonts this way, API users cannot benefit from using these fonts which may help them achieve smaller PDF size as standard fonts may not be embedded. The same applies to RadSpreadhProcessing as well.