C# 如何使用iTextSharp限制PDF页面上段落的宽度？

我想使用iTextSharp在PDF文档中插入一个段落（将word环绕几行），但我想将段落的宽度限制在页面的左半部分。我没有看到段落类的“宽度”属性，但肯定有办法做到这一点，stimmt

使现代化 假设的答案对我来说不起作用，因为它使用了iText（Java）中显然无法使用的东西。具体而言（首先，可能还有更多）：

虽然*Sharp（大写字母“s”）有一个“SetSimpleColumn”，但没有“GetPageSize”

更新2

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我开始认为，我真正需要做的可能是按照建议创建一个“无边界表格”，如“BestitextQuestionStackOverflowFull.pdf”中所述，这是一种方法-一个无边界、单行表格，宽度百分比设置为50，水平对齐发送到左侧：

using (var ms = new MemoryStream())
{
    using (var doc = new Document(PageSize.A4, 50, 50, 25, 25))                     {
        //Create a writer that's bound to our PDF abstraction and our stream
        using (var writer = PdfWriter.GetInstance(doc, ms))
        {

            //Open the document for writing
            doc.Open();

            var courier9RedFont = FontFactory.GetFont("Courier", 9, BaseColor.RED);
            var importantNotice = new Paragraph("Sit on a potato pan Otis - if you don't agree that that's the best palindrome ever, I will sic Paladin on you, or at least say, 'All down but nine - set 'em up on the other alley, pard'", courier9RedFont);
            importantNotice.Leading = 0;
            importantNotice.MultipliedLeading = 0.9F; // reduce the width between lines in the paragraph with these two settings

            // Add a single-cell, borderless, left-aligned, half-page, table
            PdfPTable table = new PdfPTable(1);
            PdfPCell cellImportantNote = new PdfPCell(importantNotice);
            cellImportantNote.BorderWidth = PdfPCell.NO_BORDER;
            table.WidthPercentage = 50;
            table.HorizontalAlignment = Element.ALIGN_LEFT;
            table.AddCell(cellImportantNote);
            doc.Add(table);

            doc.Close();
        }
        var bytes = ms.ToArray();
        String PDFTestOutputFileName = String.Format("iTextSharp_{0}.pdf", DateTime.Now.ToShortTimeString());
        PDFTestOutputFileName = PDFTestOutputFileName.Replace(":", "_");
        var testFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), PDFTestOutputFileName);
        File.WriteAllBytes(testFile, bytes);
        MessageBox.Show(String.Format("{0} written", PDFTestOutputFileName));
    }
}

---

最简单的方法可能是使用无边框的表。您需要调整单元格填充和其他一些事情，但这将允许您“Document.Add（）”它。如果这对你不起作用，那么正如@OneFineDay所说的那样，你需要创建自己的矩形来控制它，并使用请阅读，例如，你会发现你最近发布的许多问题都是重复的。例如：这个问题可能是它的重复，也可能是定义自定义左边距那么简单；我下载了“StackOverflow上的最佳iText问题”示例；完整版要大多少？关于您对问题的更新：iText中的getter/setter主要是iTextSharp中的属性

document.getPageSize（）.getWidth（）

变为

document.PageSize.Width

。

using (var ms = new MemoryStream())
{
    using (var doc = new Document(PageSize.A4, 50, 50, 25, 25))                     {
        //Create a writer that's bound to our PDF abstraction and our stream
        using (var writer = PdfWriter.GetInstance(doc, ms))
        {

            //Open the document for writing
            doc.Open();

            var courier9RedFont = FontFactory.GetFont("Courier", 9, BaseColor.RED);
            var importantNotice = new Paragraph("Sit on a potato pan Otis - if you don't agree that that's the best palindrome ever, I will sic Paladin on you, or at least say, 'All down but nine - set 'em up on the other alley, pard'", courier9RedFont);
            importantNotice.Leading = 0;
            importantNotice.MultipliedLeading = 0.9F; // reduce the width between lines in the paragraph with these two settings

            // Add a single-cell, borderless, left-aligned, half-page, table
            PdfPTable table = new PdfPTable(1);
            PdfPCell cellImportantNote = new PdfPCell(importantNotice);
            cellImportantNote.BorderWidth = PdfPCell.NO_BORDER;
            table.WidthPercentage = 50;
            table.HorizontalAlignment = Element.ALIGN_LEFT;
            table.AddCell(cellImportantNote);
            doc.Add(table);

            doc.Close();
        }
        var bytes = ms.ToArray();
        String PDFTestOutputFileName = String.Format("iTextSharp_{0}.pdf", DateTime.Now.ToShortTimeString());
        PDFTestOutputFileName = PDFTestOutputFileName.Replace(":", "_");
        var testFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), PDFTestOutputFileName);
        File.WriteAllBytes(testFile, bytes);
        MessageBox.Show(String.Format("{0} written", PDFTestOutputFileName));
    }
}