How to Set Top Margins in Word and Convert to PDF with C# .NET Core?

Syncfusion® Essential® DocIO is a .NET Word library used to create, read, edit, and convert Word documents programmatically without Microsoft Word or interop dependencies. Using this library, you can set different top margins in a word document and convert to PDF using C#.

A Word document is a flow document in which contents are preserved sequentially section by section, rather than page by page. Margins are a section-based property, and in this example, we have set different margin values in multiple sections.

Steps to set different top margins in a word document and convert to PDF:

1. Create a new .NET Core console application project.
   
   
2. Install the Syncfusion.DocIORenderer.NET.Core NuGet package as a reference to your .NET Core application from NuGet.org.
   
   

3. Include the following namespaces in the Program.cs file.
   C#

using Syncfusion.DocIO;
using Syncfusion.DocIO.DLS;
using Syncfusion.DocIORenderer;
using Syncfusion.Pdf;

4. Use the following code example to set different top margins in a word document and convert it to PDF.
   C#

//Load the Word document
WordDocument document = new WordDocument(Path.GetFullPath(@"Data/Input.docx"));
int sectionsCount = document.Sections.Count;
// Loop through all sections in the document
for (int i = 0; i < sectionsCount; i++)
{
    // Get the current section
    IWSection section = document.Sections[i];
    // Set the top margin based on whether it's the first or last section
    if (i == 0 || i == sectionsCount - 1)
        section.PageSetup.Margins.Top = 200; // Apply a top margin of 200 for the first section and last section
    else
        section.PageSetup.Margins.Top = 90;  // Apply a top margin of 90 for all other sections
}
//Creates an instance of DocIORenderer.
DocIORenderer converter = new DocIORenderer();
// Convert the Word document to PDF
PdfDocument pdf = converter.ConvertToPDF(document);
//Saves the PDF file to file system.
FileStream fileStream = new FileStream(Path.GetFullPath(@"../../../Output/Output.pdf"), FileMode.OpenOrCreate, FileAccess.ReadWrite);
pdf.Save(fileStream);
// Dispose resources
fileStream.Dispose();
pdf.Dispose();
converter.Dispose();
document.Close();

You can download a complete working sample to set different top margins in a word document and convert to PDF from GitHub.

The following screenshot shows the input Word document and output PDF document after setting different top margins:

Take a moment to peruse the documentation where you can find basic Word document processing options along with features like mail merge, merge, split, and compare Word documents, find and replace text in the Word document, protect the Word documents, and most importantly, the PDF and Image conversions with code examples.

Conclusion

I hope you enjoyed learning about how to set different top margins in a word document and convert to PDF in a .NET Core Word document.

You can refer to our ASP.NET Core DocIO feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started with configuration specifications. You can also explore our ASP.NET Core DocIO example to understand how to create and manipulate data.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion®, you can try our 30-day free trial to check out our other controls.

If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!