Split Word Documents by Page Breaks or Section Breaks in C#

Page breaks and section breaks are two useful features for controlling page layout in MS Word and other desktop publishing programs. Page breaks are used to end a page without filling it with text. Section breaks are used to allow formatting changes (i.e., different margins, page number styles, etc.) in the same document.

Sometimes, we may want to pull the different parts that are separated by page breaks or section breaks out of the whole document storing as several individual files. This article provides two brilliant solutions in C# to split a Word document by page breaks and section breaks.

Split by Page Breaks

using System;
using Spire.Doc;
using Spire.Doc.Documents;

namespace Split_Word_Document_by_Page_Break
    class Program
        static void Main(string[] args)
            Document original = new Document();
            original.LoadFromFile("New Zealand.docx");
            Document newWord = new Document();
            Section section = newWord.AddSection();

            int index = 0;
            foreach (Section sec in original.Sections)
                foreach (DocumentObject obj in sec.Body.ChildObjects)
                    if (obj is Paragraph)
                        Paragraph para = obj as Paragraph;

                        foreach (DocumentObject parobj in para.ChildObjects)
                            if (parobj is Break && (parobj as Break).BreakType == BreakType.PageBreak)
                                int i = para.ChildObjects.IndexOf(parobj);
                                newWord.SaveToFile(String.Format("result/out-{0}.docx", index), FileFormat.Docx);

                                newWord = new Document();
                                section = newWord.AddSection();
                                if (section.Paragraphs[0].ChildObjects.Count == 0)
                                    while (i >= 0)
                    if (obj is Table)
            newWord.SaveToFile(String.Format("result/out-{0}.docx", index), FileFormat.Docx);

Split by Section Breaks

using System;
using Spire.Doc;

namespace Split_Word_Document
    class Program
        static void Main(string[] args)
            Document document = new Document();
            Document newWord;
            for (int i = 0; i < document.Sections.Count; i++)
                newWord = new Document();
                newWord.SaveToFile(String.Format(@"test\out_{0}.docx", i));

Note: These solutions are relied on free .NET Word Component, you can download it from here and reference the DLL file to your own project.

View and Print Office Files in Windows Forms Application

Nowadays, we are most likely to receive or create electronic reports in office file formats, such as .docx, .xlsx, .pptx and .pdf. It’s quite often that programmers are requested to build a .NET application that can view and print office files, so that their colleagues or customers can access the documents too.

This article presents how to view and print Word, Excel, PowerPoint and PDF Documents in a Windows Forms Application via a powerful component Spire.OfficeViewer. To create your own Office document viewer,  you need firstly integrate Spire.OfficeViewer controls to Toolbox in your Visual Studio. Here is how to.

  • Download Spire.OfficeViewer and install it on system
  • Right-click on Toolbox panel, click ‘Add Tab’ to add a new tab
  • Right-click the new tab and select ‘Choose Items…’
  • Choose ‘.NET Framework Components’ tab
  • Click ‘Browse…’ button
  • Choose ‘Spire.OfficeViewer.Forms.dll’ in open file dialog
  • Click ‘OK’, then the controls will be successfully added to Toolbox

Drag ‘ OfficeViewer’ control to form1 and it looks like:


Run the program, you’re able to get an Office viewer like below screenshot. Look at the toolbar, it provides many more functions other than Open and Print.


Click Open button to open an office file from disk.


It is extremely easy to build an Offer viewer using this control, right? If you want to custom the toolbar with specified functions, just remove ‘OfficeViewer’ control and drag ‘DocumentViewer’ control to the form1, and then create your own toolbar using the Common Controls provided by VS, but you need to figure out the code inside the toolbar.

How to Create a Signature Field in PDF in C#

A signature field enables the user to place his signature in a form. This field type allows instant validation from a customer through his digital signature, eliminating the need of paper work. To prepare a document for digital signing, add one or more digital signature fields (depending on how many signatures are needed). This article presents how to create signature fields in a PDF document using Spire.PDF in C#.

Adding Necessary Namespaces

using Spire.Pdf;
using Spire.Pdf.Fields;
using Spire.Pdf.Graphics;
using System.Drawing;

Using the code

STEP 1. Create a PDF document, create a blank page.

PdfDocument pdfdoc = new PdfDocument();
PdfPageBase page = pdfdoc.Pages.Add();

STEP 2. Draw some text in PDF.

PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 10f);
PdfSolidBrush brush = new PdfSolidBrush(Color.Black);
string s1 = "Representative #1";
string s2 = "Representative #2";
SizeF size = font.MeasureString(s1);
int x = 180;
int y1 = 120, y2 = 180;
page.Canvas.DrawString(s1, font, brush, new PointF(x, y1));
page.Canvas.DrawString(s2, font, brush, new PointF(x, y2));

STEP 3. Draw two line shapes on PDF.

PdfPen pen = new PdfPen(Color.Black, 0.5f);
page.Canvas.DrawLine(pen, new PointF(x + size.Width + 2, y1 +size.Height+ 2), new PointF(x + size.Width + 126, y1 + size.Height + 2));
page.Canvas.DrawLine(pen, new PointF(x + size.Width + 2, y2 + size.Height + 2), new PointF(x + size.Width + 126, y2 + size.Height + 2));

STEP 4. Create two signature fields in PDF and set the properties respectively.

PdfSignatureField signaturefield1 = new PdfSignatureField(page, "Signature1");
signaturefield1.BorderWidth = 1.0f;
signaturefield1.BorderStyle = PdfBorderStyle.Solid;
signaturefield1.BorderColor = new PdfRGBColor(System.Drawing.Color.White);
signaturefield1.HighlightMode = PdfHighlightMode.Outline;
signaturefield1.Bounds = new RectangleF(x+size.Width+5, y1 - 50 + size.Height, 120, 50);

PdfSignatureField signaturefield2 = new PdfSignatureField(page, "Signature2");
signaturefield2.BorderWidth = 1.0f;
signaturefield2.BorderStyle = PdfBorderStyle.Solid;
signaturefield2.BorderColor = new PdfRGBColor(System.Drawing.Color.White);
signaturefield2.HighlightMode = PdfHighlightMode.Outline;
signaturefield2.Bounds = new RectangleF(x+size.Width+5, y2 - 50 + size.Height, 120, 50);


STEP 5. Save to file.

doc.SaveToFile("SignatureField.pdf", FileFormat.PDF);



Programmatically Accept or Reject Tracked Changes in Word

Before a business contract is signed, the two parties involved may have modified the document several times so as the both side can reach to an agreement. In order to know who’re changing what in your Word document, you can turn on Track Changes, and Accept or Reject the changes to get the tracked changes out of the document.

This article provides an easy solution in C# to accept or reject the tracked changes. Check below code snippets:

using Spire.Doc;
using Spire.Doc.Documents;

namespace AcceptOrRejectChanges
    class Program
        static void Main(string[] args)
            Document doc = new Document();

            Section sec = doc.Sections[0];
            Paragraph para = sec.Paragraphs[0];

            //accept changes

            ////reject changes 

            doc.SaveToFile("result.docx", FileFormat.Docx);



How to Programmatically Mark up Text in an Existing PDF Document in C#

Users often face the situation that you may need to emphasize the most important information from all text on a PDF page. Highlight text is such a functionality which allow users to give prominence to key words or sentence. In this tip, I will introduce how to mark up text in an existing PDF document programmatically in C#.

This scenario depends on .NET PDF component.  Please download it and add Spire.Pdf.dll as reference in your project. Following code snippets demonstrate how to accomplish this task using the classes provided by this component.

Step 1: Load the sample PDF document.

PdfDocument doc = new PdfDocument();
PdfPageBase page = doc.Pages[0];

Step 2: Find the text (words or sentence) that you want to mark up.

PdfTextFind ptf = page.FindText("Highlight text").Finds[0];

Step 3: Create a Markup Annotation based on the text.

Font font = ptf.Font;
string markupText = "Higlight text";
PdfTextMarkupAnnotation annotation = new PdfTextMarkupAnnotation("Adminstrator", "Text Markup Annotation", markupText, ptf.Position, new PdfTrueTypeFont(font));
annotation.Border = new PdfAnnotationBorder(0.75f);
annotation.TextMarkupColor = Color.Yellow;

Step 4: Add the annotation to PDF page.

doc.SaveToFile("Markup.pdf", FileFormat.PDF);

 Screenshot of Result