Z te stranky:http://csharp-source.net/open-source/pdf-libraries

jsem zkusil vsechny az na:iTextSharp, ASP.NET FO PDF, PDFjet Open Source Edition. U tech nasledujicich mam nasledujici problemy:

PDFsharp - nefunguje tam zobrazeni metadata: tag, author, keywords, subject, title
pouzivany kod:

            openFileDialog1.Filter = "PDF files (*.pdf)|*.pdf";

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                string filename = openFileDialog1.FileName;
                // Read document into memory for modification
                PdfDocument document = PdfReader.Open(filename);
                textBox2.Text += "\r\nLanguage\t:\t\t" + document.Language;     //funkcni ?
                textBox2.Text += "\r\nPage count\t:\t\t" + document.PageCount;
                textBox2.Text += "\r\nPage layout\t:\t\t" + document.PageLayout;
                textBox2.Text += "\r\nTag\t\t:\t\t" + document.Tag;             //asi nefunkcni :(
                textBox2.Text += "\r\nVersion of PDF\t:\t\t" + document.Version/10.0;
                textBox2.Text += "\r\nAuthor\t\t:\t\t" + document.Info.Author;  //asi nefunkcni :(
                textBox2.Text += "\r\nBy program\t:\t\t" + document.Info.Producer + " / " + document.Info.Creator;
                textBox2.Text += "\r\nKeywords\t\t:\t\t" + document.Info.Keywords;//asi nefunkcni :(
                textBox2.Text += "\r\nSubject\t\t:\t\t" + document.Info.Subject;  //asi nefunkcni :(
                textBox2.Text += "\r\nTitle\t\t:\t\t" + document.Info.Title;      //asi nefunkcni :(
            }