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Line spacing is the amount of white space between each line in a paragraph, while paragraph spacing is the amount of white space before and after each paragraph in a document. In MS Word, you can adjust the spacing manually if the default spacing does not meet your needs. In this article, you will learn how to programmatically set line spacing and paragraph spacing in Word using Spire.Doc for .NET.
Install Spire.Doc for .NET
To begin with, you need to add the DLL files included in the Spire.Doc for.NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.Doc
Set Line Spacing and Paragraph Spacing in Word
Loose line or paragraph spacing can make text more readable, while tight line or paragraph spacing can fit more text in a document. Below are the steps to adjust the line spacing and paragraph spacing in a Word document.
- Create a Document instance.
- Add a section to the document using Document.AddSection() method, and then add a paragraph to the section.
- Set the before and after spacing for the paragraph using Paragraph.Format.BeforeSpacing and Paragraph.Format.AfterSpacing properties.
- Add another paragraph and set line spacing in the paragraph using Paragraph.Format.LineSpacing property.
- Save the result document using Document.SaveToFile() method.
- C#
- VB.NET
using Spire.Doc;
using Spire.Doc.Documents;
namespace SetSpacing
{
class Program
{
static void Main(string[] args)
{
//Create a Document instance
Document document = new Document();
//Add a section
Section section = document.AddSection();
//Add a paragraph
Paragraph paragraph = section.AddParagraph();
paragraph.AppendText("Spire.Doc for .NET is a professional Word .NET library specifically designed for developers to " +
"create, read, write, convert, compare and print Word documents on any .NET platform " +
"(Target .NET Framework, .NET Core, .NET Standard, .NET 5.0, .NET 6.0, Xamarin & Mono Android ) with fast and high quality performance.");
//Set spacing before the paragraph
paragraph.Format.BeforeSpacing = 30;
//Set spacing after the paragraph
paragraph.Format.AfterSpacing = 30;
//Add another paragraph
Paragraph paragraph2 = section.AddParagraph();
paragraph2.AppendText("Spire.Doc for .NET is a reliable API which enables to perform many Word document processing tasks. " +
"It supports C#, VB.NET, ASP.NET and ASP.NET MVC. Spire.Doc supports Word 97-2003 /2007/2010/2013/2016/2019 " +
"and it has the ability to convert them to commonly used file formats like XML, RTF, TXT, XPS, EPUB, HTML and vice versa. ");
//Set line spacing in the paragraph
paragraph2.Format.LineSpacing = 25;
//Save the result document
document.SaveToFile("SetSpacing.docx", FileFormat.Docx);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
PDF/A is widely used for long term archiving for PDF format. By using Spire.PDF, you can create PDF/A file directly. This article mainly shows how to set up PDF/A file; it will also demonstrate how to add image and insert hyperlink to image in C#.
Make sure Spire.PDF for .NET (version 2.9.43 or above) has been installed correctly and then add Spire.Pdf.dll as reference in the downloaded Bin folder though the below path: "..\Spire.Pdf\Bin\NET4.0\ Spire.Pdf.dll".
Here comes to the steps:
Step 1: Create a PDF/A document.
// Create a PdfDocument instance
PdfDocument document = new PdfDocument();
PdfPageBase page = document.Pages.Add();
page.Canvas.DrawString("Hello World", new PdfFont(PdfFontFamily.Helvetica, 30f), new PdfSolidBrush(Color.Black), 10, 10);
Step 2: Load an image from file and insert to the PDF.
//insert an image PdfImage image = PdfImage.FromFile(@"D:\PDF.png");
Step 3: Add a hyper link to the image.
//Add a link to image PointF location = new PointF(100, 100); RectangleF linkBounds = new RectangleF(location, new SizeF(image.Width, image.Height)); Spire.Pdf.Annotations.PdfUriAnnotation link = new Spire.Pdf.Annotations.PdfUriAnnotation(linkBounds, "http://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html"); link.Border = new PdfAnnotationBorder(0); page.Canvas.DrawImage(image, linkBounds); page.Annotations.Add(link);
Step 4: Save the PDF document.
//Save the document to file in PDF format String output1 = @"..\..\..\..\..\..\Data\ToPDF.pdf"; document.SaveToFile(output1); // Create an instance of the PdfStandardsConverter class, passing the input PDF file path as a parameter. PdfStandardsConverter converter = new PdfStandardsConverter(output1); // Specify the desired file name for the resulting PDFA-1b compliant PDF. String output2 = @"..\..\..\..\..\..\Data\ToPDFA.pdf"; // Convert the input PDF file to PDFA-1b format and save it using the specified output file name. converter.ToPdfA1B(output2);
Effective screenshot:
This article shows how to place a footnote in a paragraph using Spire.Doc for .NET, for example, after the word "Spire.Doc" in the following example:
Step 1: Load a word document, Sample.docx.
Document document1 = new Document();
document1.LoadFromFile("D:\\Sample.docx",FileFormat.Docx2010);
Step 2: Get the first paragraph of the first section of Sample.docx.
Paragraph paragraph1 = document1.Sections[0].Paragraphs[0];
Step 3: Add a footnote for paragraph1.
Footnote footnote1 = paragraph1.AppendFootnote(FootnoteType.Footnote);
Step 4: Find the word "Spire.Doc" and insert footnote1 after it.
DocumentObject obj=null;
for (int i = 0; i < paragraph1.ChildObjects.Count; i++)
{
obj=paragraph1.ChildObjects[i];
if (obj.DocumentObjectType == DocumentObjectType.TextRange)
{
TextRange textRange = obj as TextRange;
// Find the word "Spire.Doc" in paragraph1
if (textRange.Text == "Spire.Doc")
{
//Set bold format for the word "Spire.Doc"
textRange.CharacterFormat.Bold = true;
//Insert footnote1 after the word "Spire.Doc"
paragraph1.ChildObjects.Insert(i + 1, footnote1);
break;
}
}
}
Step 5: Type the footnote1 text and set the text's FontName, FontSize and Color.
TextRange text = footnote1.TextBody.AddParagraph().AppendText("Welcome to evaluate Spire.Doc");
text.CharacterFormat.FontName = "Arial Black";
text.CharacterFormat.FontSize = 10;
text.CharacterFormat.TextColor = Color.DarkGray;
Step 6: Set FontName, FontSize, Bold and Color for the footnote1 number.
footnote1.MarkerCharacterFormat.FontName = "Calibri"; footnote1.MarkerCharacterFormat.FontSize = 12; footnote1.MarkerCharacterFormat.Bold = true; footnote1.MarkerCharacterFormat.TextColor = Color.DarkGreen;
Step 7: Save Sample.docx to a new document, Footnote.docx.
document1.SaveToFile("D:\\ Footnote.docx"", FileFormat.Docx2010);
Full code:
Document document1 = new Document();
document1.LoadFromFile("D:\\Sample.docx" ,FileFormat.Docx2010);
Paragraph paragraph1= document1.Sections[0].Paragraphs[0];
Footnote footnote1 = paragraph1.AppendFootnote(FootnoteType.Footnote);
DocumentObject obj=null;
for (int i = 0; i < paragraph1.ChildObjects.Count; i++)
{
obj=paragraph1.ChildObjects[i];
if (obj.DocumentObjectType == DocumentObjectType.TextRange)
{
TextRange textRange = obj as TextRange;
// Find the word "Spire.Doc" in paragraph1
if (textRange.Text == "Spire.Doc")
{
//Set bold format for the word "Spire.Doc"
textRange.CharacterFormat.Bold = true;
//Insert footnote1 after the word "Spire.Doc"
paragraph1.ChildObjects.Insert(i + 1, footnote1);
break;
}
}
}
TextRange text = footnote1.TextBody.AddParagraph().AppendText("Welcome to evaluate Spire.Doc");
text.CharacterFormat.FontName = "Arial Black";
text.CharacterFormat.FontSize = 10;
text.CharacterFormat.TextColor = Color.DarkGray;
footnote1.MarkerCharacterFormat.FontName = "Calibri";
footnote1.MarkerCharacterFormat.FontSize = 12;
footnote1.MarkerCharacterFormat.Bold = true;
footnote1.MarkerCharacterFormat.TextColor = Color.DarkGreen;
document1.SaveToFile("Footnote.docx",FileFormat.Docx2010);
