Document doc = new Document("sample.docx");

foreach (Section section in doc.Sections)
{
    foreach (Paragraph paragraph in section.Paragraphs)
    {
        if (paragraph.StyleName == "Heading1")
        {
            Console.WriteLine(paragraph.Text);
        }
    }
}

using Spire.Doc;
using Spire.Doc.Documents;
using System;
namespace GetParagh
{
 class Program
    {

     static void Main(string[] args)
     {
         Document doc = new Document("sample.docx");
         foreach (Section section in doc.Sections)
         {
             foreach (Paragraph paragraph in section.Paragraphs)
             {
                 if (paragraph.StyleName == "Heading1")
                 {
                     Console.WriteLine(paragraph.Text);
                 }
             }
         }
     }

    }
}

Imports Spire.Doc
Imports Spire.Doc.Documents
Namespace GetParagh
	Class Program

		Private Shared Sub Main(args As String())
			Dim doc As New Document("sample.docx")
			For Each section As Section In doc.Sections
				For Each paragraph As Paragraph In section.Paragraphs
					If paragraph.StyleName = "Heading1" Then
						Console.WriteLine(paragraph.Text)
					End If
				Next
			Next
		End Sub

	End Class
End Namespace

Document doc = new Document();
doc.LoadFromFile(@"C:\Users\Administrator\Desktop\employee.docx");

Table table = new Table(doc,true);

DataTable dt = new DataTable();
dt.Columns.Add("id", typeof(string));
dt.Columns.Add("name", typeof(string));
dt.Columns.Add("job", typeof(string));
dt.Columns.Add("email", typeof(string));
dt.Columns.Add("salary", typeof(string));
dt.Rows.Add(new string[] { "Emp_ID", "Name", "Job", "E-mail", "Salary" });
dt.Rows.Add(new string[] { "0241","Andrews", "Engineer", "andrews@outlook.com" ,"3.8K"});
dt.Rows.Add(new string[] { "0242","White", "Manager", "white@outlook.com","4.2K" });
dt.Rows.Add(new string[] { "0243","Martin", "Secretary", "martin@gmail.com", "3.5K" });
table.ResetCells(dt.Rows.Count, dt.Columns.Count);          
for (int i = 0; i < dt.Rows.Count; i++)
{
    for (int j = 0; j < dt.Columns.Count; j++)
    {
        table.Rows[i].Cells[j].AddParagraph().AppendText(dt.Rows[i][j].ToString());
    }
}

BookmarksNavigator navigator = new BookmarksNavigator(doc);
navigator.MoveToBookmark("bookmark_employee");

TextBodyPart part = new TextBodyPart(doc);
part.BodyItems.Add(table);

navigator.ReplaceBookmarkContent(part);

doc.SaveToFile("output.docx", FileFormat.Docx2013);

using Spire.Doc;
using Spire.Doc.Documents;
using System.Data;
namespace ReplaceBookmark
{
    class Program
    {

        static void Main(string[] args)
        {

            Document doc = new Document();
            doc.LoadFromFile(@"C:\Users\Administrator\Desktop\employee.docx");

            Table table = new Table(doc, true);
            DataTable dt = new DataTable();
            dt.Columns.Add("id", typeof(string));
            dt.Columns.Add("name", typeof(string));
            dt.Columns.Add("job", typeof(string));
            dt.Columns.Add("email", typeof(string));
            dt.Columns.Add("salary", typeof(string));
            dt.Rows.Add(new string[] { "Emp_ID", "Name", "Job", "E-mail", "Salary" });
            dt.Rows.Add(new string[] { "0241", "Andrews", "Engineer", "andrews@outlook.com", "3.8K" });
            dt.Rows.Add(new string[] { "0242", "White", "Manager", "white@outlook.com", "4.2K" });
            dt.Rows.Add(new string[] { "0243", "Martin", "Secretary", "martin@gmail.com", "3.5K" });
            table.ResetCells(dt.Rows.Count, dt.Columns.Count);
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    table.Rows[i].Cells[j].AddParagraph().AppendText(dt.Rows[i][j].ToString());
                }
            }

            BookmarksNavigator navigator = new BookmarksNavigator(doc);
            navigator.MoveToBookmark("bookmark_employee");
            TextBodyPart part = new TextBodyPart(doc);
            part.BodyItems.Add(table);
            navigator.ReplaceBookmarkContent(part);
            doc.SaveToFile("output.docx", FileFormat.Docx2013);
            System.Diagnostics.Process.Start("output.docx"); 

        }
    }
}

Imports Spire.Doc
Imports Spire.Doc.Documents
Imports System.Data
Namespace ReplaceBookmark
	Class Program

		Private Shared Sub Main(args As String())

			Dim doc As New Document()
			doc.LoadFromFile("C:\Users\Administrator\Desktop\employee.docx")

			Dim table As New Table(doc, True)
			Dim dt As New DataTable()
			dt.Columns.Add("id", GetType(String))
			dt.Columns.Add("name", GetType(String))
			dt.Columns.Add("job", GetType(String))
			dt.Columns.Add("email", GetType(String))
			dt.Columns.Add("salary", GetType(String))
			dt.Rows.Add(New String() {"Emp_ID", "Name", "Job", "E-mail", "Salary"})
			dt.Rows.Add(New String() {"0241", "Andrews", "Engineer", "andrews@outlook.com", "3.8K"})
			dt.Rows.Add(New String() {"0242", "White", "Manager", "white@outlook.com", "4.2K"})
			dt.Rows.Add(New String() {"0243", "Martin", "Secretary", "martin@gmail.com", "3.5K"})
			table.ResetCells(dt.Rows.Count, dt.Columns.Count)
			For i As Integer = 0 To dt.Rows.Count - 1
				For j As Integer = 0 To dt.Columns.Count - 1
					table.Rows(i).Cells(j).AddParagraph().AppendText(dt.Rows(i)(j).ToString())
				Next
			Next

			Dim navigator As New BookmarksNavigator(doc)
			navigator.MoveToBookmark("bookmark_employee")
			Dim part As New TextBodyPart(doc)
			part.BodyItems.Add(table)
			navigator.ReplaceBookmarkContent(part)
			doc.SaveToFile("output.docx", FileFormat.Docx2013)
			System.Diagnostics.Process.Start("output.docx")

		End Sub
	End Class
End Namespace

using Spire.Pdf;
using System;

namespace Detect
{
    class Program
    {
        static void Main(string[] args)
        {
            //Initialize a PdfDocument object 
            PdfDocument pdf = new PdfDocument();
            //Load the PDF file
            pdf.LoadFromFile("Example.pdf");

            //Get the conformance level of the PDF file            
            PdfConformanceLevel conformance = pdf.Conformance;
            Console.WriteLine("This PDF file is " + conformance.ToString());
        }
    }
}

Document doc = new Document();
Section section = doc.AddSection();

Paragraph paragraph = section.AddParagraph();
paragraph.AppendBookmarkStart("MyBookmark");
paragraph.AppendText("Text inside a bookmark");
paragraph.AppendBookmarkEnd("MyBookmark");

Field field = new Field(doc);
field.Type = FieldType.FieldRef;
field.Code = @"REF MyBookmark \p \h";

paragraph = section.AddParagraph();
paragraph.AppendText("For more information, see ");
paragraph.ChildObjects.Add(field);

FieldMark fieldSeparator= new FieldMark(doc, FieldMarkType.FieldSeparator);
paragraph.ChildObjects.Add(fieldSeparator);

TextRange tr = new TextRange(doc);
tr.Text = "above";
paragraph.ChildObjects.Add(tr);

FieldMark fieldEnd = new FieldMark(doc, FieldMarkType.FieldEnd);
paragraph.ChildObjects.Add(fieldEnd);

doc.SaveToFile("output.docx", FileFormat.Docx2013);

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
namespace CreatCR
{
    class Program
    {
        static void Main(string[] args)
        {
            Document doc = new Document();
            Section section = doc.AddSection();
            //create a bookmark
            Paragraph paragraph = section.AddParagraph();
            paragraph.AppendBookmarkStart("MyBookmark");
            paragraph.AppendText("Text inside a bookmark");
            paragraph.AppendBookmarkEnd("MyBookmark");
            //insert line breaks
            for (int i = 0; i < 4; i++)
            {
                paragraph.AppendBreak(BreakType.LineBreak);
            }
            //create a cross-reference field, and link it to bookmark                    
            Field field = new Field(doc);
            field.Type = FieldType.FieldRef;
            field.Code = @"REF MyBookmark \p \h";
            //insert field to paragraph
            paragraph = section.AddParagraph();
            paragraph.AppendText("For more information, see ");
            paragraph.ChildObjects.Add(field);
            //insert FieldSeparator object
            FieldMark fieldSeparator = new FieldMark(doc, FieldMarkType.FieldSeparator);
            paragraph.ChildObjects.Add(fieldSeparator);
            //set display text of the field
            TextRange tr = new TextRange(doc);
            tr.Text = "above";
            paragraph.ChildObjects.Add(tr);
            //insert FieldEnd object to mark the end of the field
            FieldMark fieldEnd = new FieldMark(doc, FieldMarkType.FieldEnd);
            paragraph.ChildObjects.Add(fieldEnd);
            //save file
            doc.SaveToFile("output.docx", FileFormat.Docx2013);

        }
    }
}

Imports Spire.Doc
Imports Spire.Doc.Documents
Imports Spire.Doc.Fields
Namespace CreatCR
	Class Program
		Private Shared Sub Main(args As String())
			Dim doc As New Document()
			Dim section As Section = doc.AddSection()
			'create a bookmark
			Dim paragraph As Paragraph = section.AddParagraph()
			paragraph.AppendBookmarkStart("MyBookmark")
			paragraph.AppendText("Text inside a bookmark")
			paragraph.AppendBookmarkEnd("MyBookmark")
			'insert line breaks
			For i As Integer = 0 To 3
				paragraph.AppendBreak(BreakType.LineBreak)
			Next
			'create a cross-reference field, and link it to bookmark                    
			Dim field As New Field(doc)
			field.Type = FieldType.FieldRef
			field.Code = "REF MyBookmark \p \h"
			'insert field to paragraph
			paragraph = section.AddParagraph()
			paragraph.AppendText("For more information, see ")
			paragraph.ChildObjects.Add(field)
			'insert FieldSeparator object
			Dim fieldSeparator As New FieldMark(doc, FieldMarkType.FieldSeparator)
			paragraph.ChildObjects.Add(fieldSeparator)
			'set display text of the field
			Dim tr As New TextRange(doc)
			tr.Text = "above"
			paragraph.ChildObjects.Add(tr)
			'insert FieldEnd object to mark the end of the field
			Dim fieldEnd As New FieldMark(doc, FieldMarkType.FieldEnd)
			paragraph.ChildObjects.Add(fieldEnd)
			'save file
			doc.SaveToFile("output.docx", FileFormat.Docx2013)

		End Sub
	End Class
End Namespace

PdfDocument document = new PdfDocument();
document.LoadFromFile("pdf-sample.pdf");

PdfToSvgConverter converter = new PdfToSvgConverter(inputFile);
    converter.SvgOptions.ScaleX = (float)0.5;
    converter.SvgOptions.ScaleY = (float)0.5;
    converter.Convert(outputFile);

document.SaveToFile("result.svg", FileFormat.SVG);

using Spire.Pdf;
using Spire.Pdf.Conversion;

namespace ConvertPDFtoSVG
{
    class Program
    {
        static void Main(string[] args)
        {
            PdfDocument document = new PdfDocument();
            PdfToSvgConverter converter = new PdfToSvgConverter(inputFile);
            converter.SvgOptions.ScaleX = (float)0.5;
            converter.SvgOptions.ScaleY = (float)0.5;
            converter.Convert(outputFile);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Conversion

Namespace ConvertPDFtoSVG
    Class Program
        Private Shared Sub Main(args As String())
            Dim document As New PdfDocument()
            document.LoadFromFile("pdf-sample.pdf")
            ' Specify the width And height of output SVG file
            Dim Converter As New PdfToSvgConverter(inputFile)
            Converter.SvgOptions.ScaleX = CSng(0.5)
            Converter.SvgOptions.ScaleY = CSng(0.5)
            Converter.Convert(outputFile)
            document.SaveToFile("result.svg", FileFormat.SVG)
        End Sub
    End Class
End Namespace

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

PdfPageLayer layer = page.PageLayers.Add("Blue line", false);
layer.Graphics.DrawLine(new PdfPen(PdfBrushes.Blue, 1), new PointF(0, 30), new PointF(300, 30));

layer = page.PageLayers.Add("Ellipse", true);
PdfPen pen = new PdfPen(Color.Green, 1f);
PdfBrush brush = new PdfSolidBrush(Color.Green);
layer.Graphics.DrawEllipse(pen, brush, 50, 70, 200, 60);

pdf.SaveToFile("LayerVisibility.pdf", FileFormat.PDF);

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


namespace LayerVisibility
{
    class Program
    {
        static void Main(string[] args)
        {
            PdfDocument pdf = new PdfDocument();
            PdfPageBase page = pdf.Pages.Add();

            PdfLayer layer = pdf.Layers.AddLayer("Green line", PdfVisibility.Off);
            PdfPen pen = new PdfPen(Color.Green, 1f);
            PdfCanvas pcA = layer.CreateGraphics(page.Canvas);
            pcA.DrawLine(pen,new PointF(0, 30), new PointF(300, 30));

            layer = pdf.Layers.AddLayer("Ellipse", PdfVisibility.On);
            PdfPen pen2 = new PdfPen(Color.Green, 1f);
            PdfBrush brush2 = new PdfSolidBrush(Color.Green);
            PdfCanvas pcB = layer.CreateGraphics(page.Canvas);
            pcB.DrawEllipse(pen2, brush2, 50, 70, 200, 60);


            pdf.SaveToFile("LayerVisibility.pdf", FileFormat.PDF);
        }
    }
}

PdfDocument pdf = new PdfDocument();
pdf.LoadFromFile("Sample.pdf", "e-iceblue");

string UserPassword = string.Empty;
string OwnerPassword = string.Empty;
PdfSecurityPolicy securityPolicy = new PdfPasswordSecurityPolicy(UserPassword, OwnerPassword);
pdf.Encrypt(securityPolicy);

pdf.SaveToFile("Decrypted.pdf");

using Spire.Pdf;

namespace RemovePassword
{
    class Program
    {
        static void Main(string[] args)
        {
            PdfDocument pdf = new PdfDocument();
            pdf.LoadFromFile(""Sample.pdf"", ""e-iceblue"");

            string UserPassword = string.Empty;
            string OwnerPassword = string.Empty;
            PdfSecurityPolicy securityPolicy = new PdfPasswordSecurityPolicy(UserPassword, OwnerPassword);
            pdf.Encrypt(securityPolicy);
            pdf.Encrypt(securityPolicy);

            pdf.SaveToFile(""Decrypted.pdf"");
        }
    }
}

Imports Spire.Pdf

Namespace RemovePassword
	Class Program
		Private Shared Sub Main(args As String())
			Dim pdf As New PdfDocument()
			pdf.LoadFromFile(""Sample.pdf"", ""e-iceblue"")
			Dim UserPassword As String = String.Empty
			Dim OwnerPassword As String = String.Empty
			Dim securityPolicy As PdfSecurityPolicy = New PdfPasswordSecurityPolicy(UserPassword, OwnerPassword)
			pdf.Encrypt(securityPolicy)
			pdf.SaveToFile(""Decrypted.pdf"")
		End Sub
	End Class
End Namespace