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copied!<p>Let me first give you a couple of links to look over when you get a chance:</p> <ol> <li><a href="https://stackoverflow.com/a/7838631/231316">ItextSharp support for HTML and CSS</a></li> <li><a href="https://stackoverflow.com/a/8066442/231316">How to apply font properties on while passing html to pdf using itextsharp</a></li> </ol> <p>These answers go deeper into what's going on and I recommend reading them when you get a chance. Specifically the second one will show you why you need to use <code>pt</code> instead of <code>px</code>.</p> <p>To answer your first question let me show you a different way to use the <code>HTMLWorker</code> class. This class has a static method on it called <code>ParseToList</code> that will convert HTML to a <code>List<IElement></code>. The objects in that list are all iTextSharp specific versions of your HTML. Normally you would do a <code>foreach</code> on those and just add them to a document but you <em>can</em> modify them before adding which is what you want to do. Below is code that takes a static string and does that:</p> <pre><code>string file1 = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "File1.pdf"); using (FileStream fs = new FileStream(file1, FileMode.Create, FileAccess.Write, FileShare.None)) { using (Document doc = new Document(PageSize.LETTER)) { using (PdfWriter writer = PdfWriter.GetInstance(doc, fs)) { doc.Open(); //Our HTML string html = "<table><tr><th>First Name</th><th>Last Name</th></tr><tr><td>Chris</td><td>Haas</td></tr></table>"; //ParseToList requires a StreamReader instead of just a string so just wrap it using (StringReader sr = new StringReader(html)) { //Create a style sheet StyleSheet styles = new StyleSheet(); //...styles omitted for brevity //Convert our HTML to iTextSharp elements List<IElement> elements = iTextSharp.text.html.simpleparser.HTMLWorker.ParseToList(sr, styles); //Loop through each element (in this case there's actually just one PdfPTable) foreach (IElement el in elements) { //If the element is a PdfPTable if (el is PdfPTable) { //Cast it PdfPTable tt = (PdfPTable)el; //Change the widths, these are relative width by the way tt.SetWidths(new float[] { 75, 25 }); } //Add the element to the document doc.Add(el); } } doc.Close(); } } } </code></pre> <p>Hopefully you can see that once you get access to the raw <code>PdfPTable</code> you can tweak it as necessary.</p> <p>To answer your second question, if you want to use the normal <code>Paragraph</code> and <code>Chunk</code> objects with a <code>PdfStamper</code> then you need to use a <code>PdfContentByte</code> object. You can get this from your stamper in one of two ways, either by asking for one that sits "above" existing content, <code>stamper.GetOverContent(int)</code> or one that sits "below" existing content, <code>stamper.GetUnderContent(int)</code>. Both versions take a single parameter saying what page to work with. Once you have a <code>PdfContentByte</code> you can create a <code>ColumnText</code> object bound to it and use this object's <code>AddElement()</code> method to add your normal elements. Before doing this (and this answers your third question), you'll want to create at least one "column". When I do this I generally create one that essentially covers the entire page. (This part might sound weird but we're essentially make a single row, single column table cell to add our objects to.)</p> <p>Below is a full working C# 2010 WinForms app targeting iTextSharp 5.1.1.0 that shows off everything above. First it creates a generic PDF on the desktop. Then it creates a second document based off of the first, adds a paragraph and then some HTML. See the comments in the code for any questions.</p> <pre><code>using System; using System.Collections.Generic; using System.Text; using System.Windows.Forms; using iTextSharp.text; using iTextSharp.text.html.simpleparser; using iTextSharp.text.pdf; using System.IO; namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { //The two files that we are creating string file1 = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "File1.pdf"); string file2 = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "File2.pdf"); //Create a base file to write on top of using (FileStream fs = new FileStream(file1, FileMode.Create, FileAccess.Write, FileShare.None)) { using (Document doc = new Document(PageSize.LETTER)) { using (PdfWriter writer = PdfWriter.GetInstance(doc, fs)) { doc.Open(); doc.Add(new Paragraph("Hello world")); doc.Close(); } } } //Bind a reader to our first document PdfReader reader = new PdfReader(file1); //Create our second document using (FileStream fs = new FileStream(file2, FileMode.Create, FileAccess.Write, FileShare.None)) { using (PdfStamper stamper = new PdfStamper(reader, fs)) { StyleSheet styles = new StyleSheet(); //...styles omitted for brevity //Our HTML string html = "<table><tr><th>First Name</th><th>Last Name</th></tr><tr><td>Chris</td><td>Haas</td></tr></table>"; //ParseToList requires a StreamReader instead of just a string so just wrap it using (StringReader sr = new StringReader(html)) { //Get our raw PdfContentByte object letting us draw "above" existing content PdfContentByte cb = stamper.GetOverContent(1); //Create a new ColumnText object bound to the above PdfContentByte object ColumnText ct = new ColumnText(cb); //Get the dimensions of the first page of our source document iTextSharp.text.Rectangle page1size = reader.GetPageSize(1); //Create a single column object spanning the entire page ct.SetSimpleColumn(0, 0, page1size.Width, page1size.Height); ct.AddElement(new Paragraph("Hello world!")); //Convert our HTML to iTextSharp elements List<IElement> elements = iTextSharp.text.html.simpleparser.HTMLWorker.ParseToList(sr, styles); //Loop through each element (in this case there's actually just one PdfPTable) foreach (IElement el in elements) { //If the element is a PdfPTable if (el is PdfPTable) { //Cast it PdfPTable tt = (PdfPTable)el; //Change the widths, these are relative width by the way tt.SetWidths(new float[] { 75, 25 }); } //Add the element to the ColumnText ct.AddElement(el); } //IMPORTANT, this actually commits our object to the PDF ct.Go(); } } } this.Close(); } } } </code></pre>

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