PM> Install-Package Spire.Doc

using Spire.Doc;
    using Spire.Doc.Documents;
    using System.Drawing;
    
    namespace InsertHyperlinks
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Word document
                Document doc = new Document();
    
                //Add a section
                Section section = doc.AddSection();
    
                //Add a paragraph
                Paragraph paragraph = section.AddParagraph();
                paragraph.AppendHyperlink("https://www-iceblue.com/", "Home Page", HyperlinkType.WebLink);
    
                //Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak);
                paragraph.AppendBreak(BreakType.LineBreak);
    
                //Add an email link
                paragraph.AppendHyperlink("mailto:support@e-iceblue.com", "Mail Us", HyperlinkType.EMailLink);
    
                //Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak);
                paragraph.AppendBreak(BreakType.LineBreak);
    
                //Add a file link
                string filePath = @"C:\Users\Administrator\Desktop\report.xlsx";
                paragraph.AppendHyperlink(filePath, "Click to open the report", HyperlinkType.FileLink);
    
                //Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak);
                paragraph.AppendBreak(BreakType.LineBreak);
    
                //Add another section and create a bookmark
                Section section2 = doc.AddSection();
                Paragraph bookmarkParagrapg = section2.AddParagraph();
                bookmarkParagrapg.AppendText("Here is a bookmark");
                BookmarkStart start = bookmarkParagrapg.AppendBookmarkStart("myBookmark");
                bookmarkParagrapg.Items.Insert(0, start);
                bookmarkParagrapg.AppendBookmarkEnd("myBookmark");
    
                //Link to the bookmark
                paragraph.AppendHyperlink("myBookmark", "Jump to a location inside this document", HyperlinkType.Bookmark);
    
                //Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak);
                paragraph.AppendBreak(BreakType.LineBreak);
    
                //Add an image link
                Image image = Image.FromFile(@"C:\Users\Administrator\Desktop\logo.png");
                Spire.Doc.Fields.DocPicture picture = paragraph.AppendPicture(image);
                paragraph.AppendHyperlink("https://docs.microsoft.com/en-us/dotnet/", picture, HyperlinkType.WebLink);
    
                //Save to file
                doc.SaveToFile("InsertHyperlinks.docx", FileFormat.Docx2013);
            }
        }
    }

Imports Spire.Doc
    Imports Spire.Doc.Documents
    Imports System.Drawing
    
    Namespace InsertHyperlinks
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Word document
                Document doc  =  New Document()
    
                'Add a section
                Dim section As Section =  doc.AddSection()
    
                'Add a paragraph
                Dim paragraph As Paragraph =  section.AddParagraph()
                paragraph.AppendHyperlink("https://www.e-iceblue.com/", "Home Page", HyperlinkType.WebLink)
    
                'Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak)
                paragraph.AppendBreak(BreakType.LineBreak)
    
                'Add an email link
                paragraph.AppendHyperlink("mailto:support@e-iceblue.com", "Mail Us", HyperlinkType.EMailLink)
    
                'Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak)
                paragraph.AppendBreak(BreakType.LineBreak)
    
                'Add a file link
                Dim filePath As String =  "C:\Users\Administrator\Desktop\report.xlsx"
                paragraph.AppendHyperlink(filePath, "Click to open the report", HyperlinkType.FileLink)
    
                'Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak)
                paragraph.AppendBreak(BreakType.LineBreak)
    
                'Add another section and create a bookmark
                Dim section2 As Section =  doc.AddSection()
                Dim bookmarkParagrapg As Paragraph =  section2.AddParagraph()
                bookmarkParagrapg.AppendText("Here is a bookmark")
                Dim start As BookmarkStart =  bookmarkParagrapg.AppendBookmarkStart("myBookmark")
                bookmarkParagrapg.Items.Insert(0, start)
                bookmarkParagrapg.AppendBookmarkEnd("myBookmark")
    
                'Link to the bookmark
                paragraph.AppendHyperlink("myBookmark", "Jump to a location inside this document", HyperlinkType.Bookmark)
    
                'Append line breaks
                paragraph.AppendBreak(BreakType.LineBreak)
                paragraph.AppendBreak(BreakType.LineBreak)
    
                'Add an image link
                Dim image As Image =  Image.FromFile("C:\Users\Administrator\Desktop\logo.png")
                Dim picture As Spire.Doc.Fields.DocPicture =  paragraph.AppendPicture(image)
                paragraph.AppendHyperlink("https://docs.microsoft.com/en-us/dotnet/", picture, HyperlinkType.WebLink)
    
                'Save to file
                doc.SaveToFile("InsertHyperlinks.docx", FileFormat.Docx2013)
                System.Diagnostics.Process.Start("InsertHyperlinks.docx")
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    using Spire.Doc.Documents;
    using Spire.Doc.Fields;
    using Spire.Doc.Interface;
    
    namespace AddHyperlinksToExistingText
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document object
                Document document = new Document();
    
                //Load a Word file
                document.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.docx");
    
                //Find all the occurrences of the string ".NET Framework" in the document
                TextSelection[] selections = document.FindAllString(".NET Framework", true, true);
    
                //Get the second occurrence
                TextRange range = selections[1].GetAsOneRange();
    
                //Get its owner paragraph
                Paragraph parapgraph = range.OwnerParagraph;
    
                //Get its position in the paragraph
                int index = parapgraph.Items.IndexOf(range);
    
                //Remove it from the paragraph
                parapgraph.Items.Remove(range);
    
                //Create a hyperlink field
                Spire.Doc.Fields.Field field = new Spire.Doc.Fields.Field(document);
                field.Type = Spire.Doc.FieldType.FieldHyperlink;
                Hyperlink hyperlink = new Hyperlink(field);
                hyperlink.Type = HyperlinkType.WebLink;
                hyperlink.Uri = "https://en.wikipedia.org/wiki/.NET_Framework";
                parapgraph.Items.Insert(index, field);
    
                //Insert a field mark "start" to the paragraph
                IParagraphBase start = document.CreateParagraphItem(ParagraphItemType.FieldMark);
                (start as FieldMark).Type = FieldMarkType.FieldSeparator;
                parapgraph.Items.Insert(index + 1, start);
    
                //Insert a text range between two field marks
                ITextRange textRange = new Spire.Doc.Fields.TextRange(document);
                textRange.Text = ".NET Framework";
                textRange.CharacterFormat.Font = range.CharacterFormat.Font;
                textRange.CharacterFormat.TextColor = System.Drawing.Color.Blue;
                textRange.CharacterFormat.UnderlineStyle = UnderlineStyle.Single;
                parapgraph.Items.Insert(index + 2, textRange);
    
                //Insert a field mark "end" to the paragraph
                IParagraphBase end = document.CreateParagraphItem(ParagraphItemType.FieldMark);
                (end as FieldMark).Type = FieldMarkType.FieldEnd;
                parapgraph.Items.Insert(index + 3, end);
    
                //Save to file
                document.SaveToFile("AddHyperlink.docx", Spire.Doc.FileFormat.Docx);
            }
        }
    }

Imports Spire.Doc
    Imports Spire.Doc.Documents
    Imports Spire.Doc.Fields
    Imports Spire.Doc.Interface
    
    Namespace AddHyperlinksToExistingText
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Document object
                Dim document As Document =  New Document()
    
                'Load a Word file
                document.LoadFromFile("C:\Users\Administrator\Desktop\sample.docx")
    
                'Find all the occurrences of the string ".NET Framework" in the document
                Dim selections() As TextSelection =  document.FindAllString(".NET Framework",True,True)
    
                'Get the second occurrence
                Dim range As TextRange =  selections(1).GetAsOneRange()
    
                'Get its owner paragraph
                Dim parapgraph As Paragraph =  range.OwnerParagraph
    
                'Get its position in the paragraph
                Dim index As Integer =  parapgraph.Items.IndexOf(range)
    
                'Remove it from the paragraph
                parapgraph.Items.Remove(range)
    
                'Create a hyperlink field
                Dim field As Spire.Doc.Fields.Field =  New Spire.Doc.Fields.Field(document)
                field.Type = Spire.Doc.FieldType.FieldHyperlink
                Dim hyperlink As Hyperlink =  New Hyperlink(field)
                hyperlink.Type = HyperlinkType.WebLink
                hyperlink.Uri = "https://en.wikipedia.org/wiki/.NET_Framework"
                parapgraph.Items.Insert(index, field)
    
                'Insert a field mark "start" to the paragraph
                Dim start As IParagraphBase =  document.CreateParagraphItem(ParagraphItemType.FieldMark)
                (start as FieldMark).Type = FieldMarkType.FieldSeparator
                parapgraph.Items.Insert(index + 1, start)
    
                'Insert a text range between two field marks
                Dim textRange As ITextRange =  New Spire.Doc.Fields.TextRange(document)
                textRange.Text = ".NET Framework"
                textRange.CharacterFormat.Font = range.CharacterFormat.Font
                textRange.CharacterFormat.TextColor = System.Drawing.Color.Blue
                textRange.CharacterFormat.UnderlineStyle = UnderlineStyle.Single
                parapgraph.Items.Insert(index + 2, textRange)
    
                'Insert a field mark "end" to the paragraph
                Dim end As IParagraphBase =  document.CreateParagraphItem(ParagraphItemType.FieldMark)
                (end as FieldMark).Type = FieldMarkType.FieldEnd
                parapgraph.Items.Insert(index + 3, end)
    
                'Save to file
                document.SaveToFile("AddHyperlink.docx", Spire.Doc.FileFormat.Docx)
            End Sub
        End Class
    End Namespace

PM> Install-Package Spire.Doc

using System.Drawing;
    using Spire.Doc;
    using Spire.Doc.Documents;
    using Spire.Doc.Fields;
    
    namespace WordImage
    {
        class ImageinWord
        {
            static void Main(string[] args)
            {
                //Create a Document instance
                Document document = new Document();
    
                //Load a sample Word document
                document.LoadFromFile("input.docx");
    
                //Get the first section
                Section section = document.Sections[0];
    
                //Get two specified paragraphs
                Paragraph para1 = section.Paragraphs[5];
                Paragraph para2 = section.Paragraphs[9];
    
                //Insert images in the specified paragraphs
                DocPicture Pic1 = para1.AppendPicture(Image.FromFile(@"C:\Users\Administrator\Desktop\pic1.jpg"));
                DocPicture Pic2 = para2.AppendPicture(Image.FromFile(@"C:\Users\Administrator\Desktop\pic2.png"));
    
                //Set wrapping styles to Square and Inline respectively
                Pic1.TextWrappingStyle = TextWrappingStyle.Square;
                Pic2.TextWrappingStyle = TextWrappingStyle.Inline;
    
                //Save the document to file
                document.SaveToFile("InsertImage.docx", FileFormat.Docx);
            }
        }
    }

Imports System.Drawing
    Imports Spire.Doc
    Imports Spire.Doc.Documents
    Imports Spire.Doc.Fields
    
    Namespace WordImage
        Class ImageinWord
            Private Shared Sub Main(ByVal args As String())
    
                'Create a Document instance
                Dim document As Document = New Document()
    
                'Load a sample Word document
                document.LoadFromFile("sample.docx")
    
                'Get the first section
                Dim section As Section = document.Sections(0)
    
                'Get two specified paragraphs
                Dim para1 As Paragraph = section.Paragraphs(5)
                Dim para2 As Paragraph = section.Paragraphs(9)
    
                'Insert images in the specified paragraphs
                Dim Pic1 As DocPicture = para1.AppendPicture(Image.FromFile("C:\Users\Administrator\Desktop\pic1.jpg"))
                Dim Pic2 As DocPicture = para2.AppendPicture(Image.FromFile("C:\Users\Administrator\Desktop\pic2.png"))
    
                ‘Set wrapping styles to Square and Inline respectively
                Pic1.TextWrappingStyle = TextWrappingStyle.Square
                Pic2.TextWrappingStyle = TextWrappingStyle.Inline
    
                'Save the document to file
                document.SaveToFile("InsertImage.docx", FileFormat.Docx)
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    using Spire.Doc.Documents;
    using Spire.Doc.Fields;
    using System.Drawing;
    
    namespace InsertImage
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document instance
                Document document = new Document();
    
                //Load a sample Word document
                document.LoadFromFile("input.docx");
    
                //Get the first section
                Section section = document.Sections[0];
    
                //Load an image and insert it to the document
                DocPicture picture = section.Paragraphs[0].AppendPicture(Image.FromFile(@"C:\Users\Administrator\Desktop\pic.jpg"));
    
                //Set the position of the image
                picture.HorizontalPosition = 90.0F;
                picture.VerticalPosition = 50.0F;
    
                //Set the size of the image
                picture.Width = 150;
                picture.Height = 150;
    
                //Set the wrapping style to Behind
                picture.TextWrappingStyle = TextWrappingStyle.Behind;
    
                // Save the document to file
                document.SaveToFile("Insert.docx", FileFormat.Docx);
            }
        }
    }

Imports Spire.Doc
    Imports Spire.Doc.Documents
    Imports Spire.Doc.Fields
    
    Namespace InsertImage
        Class Program
            Private Shared Sub Main(ByVal args As String())
    
                'Create a Document instance
                Dim document As Document = New Document()
    
                'Load a sample Word document
                document.LoadFromFile("input.docx")
    
                'Get the first section
                Dim section As Section = document.Sections(0)
    
                'Load an image and insert it to the document
                Dim picture As DocPicture = section.Paragraphs(0).AppendPicture(Image.FromFile("C:\Users\Administrator\Desktop\pic.jpg"))
    
                'Set the position of the image
                picture.HorizontalPosition = 90.0F
                picture.VerticalPosition = 50.0F
    
                'Set the size of the image
                picture.Width = 150
                picture.Height = 150
    
                ' Set the wrapping style to Behind
                picture.TextWrappingStyle = TextWrappingStyle.Behind
    
                ' Save the document to file
                document.SaveToFile("Insert.docx", FileFormat.Docx)
            End Sub
        End Class
    End Namespace

PM> Install-Package Spire.Doc

using System;
    using Spire.Doc;
    
    namespace RemoveParagraphs
    {
        internal class Program
        {
            static void Main(string[] args)
            {
                //Create an object of Document class
                Document document = new Document();
    
                //Load a Word document
                document.LoadFromFile("Sample.docx");
    
                //Get the first section
                Section section = document.Sections[0];
    
                //Remove the first paragraph in the section
                section.Paragraphs.RemoveAt(3);
    
                //Save the document
                document.SaveToFile("RemoveParagraphs.docx", FileFormat.Docx2013);
            }
        }
    }

Imports System
    Imports Spire.Doc
    
    Module Program
        Sub Main(args As String())
            'Create an object of Document class
            Dim document As Document = New Document
    
            'Load a Word document
            document.LoadFromFile("Sample.docx")
    
            'Get the first section
            Dim section As Section = document.Sections(0)
    
            'Remove the first paragraph in the section
            section.Paragraphs.RemoveAt(3)
    
            'Save the document
            document.SaveToFile("RemoveParagraphs.docx", FileFormat.Docx2013)
        End Sub
    End Module

using System;
    using Spire.Doc;
    
    namespace RemoveAllParagraphs
    {
        internal class Program
        {
            static void Main(string[] args)
            {
                //Create an object of Document class
                Document document = new Document();
    
                //Load a Word document
                document.LoadFromFile("Sample.docx");
    
                //Loop through all sections
                foreach (Section section in document.Sections)
                {
                    //Remove all paragraphs in the section
                    section.Paragraphs.Clear();
                }
    
                //Save the document
                document.SaveToFile("RemoveAllParagraphs.docx", FileFormat.Docx2013);
            }
        }
    }

Imports System
    Imports Spire.Doc
    
    Module Program
        Sub Main(args As String())
            'Create an object of Document class
            Dim document As Document = New Document()
    
            'Load a Word document
            document.LoadFromFile("Sample.docx")
    
            'Loop through all sections
            For Each section As Section In document.Sections
                'Remove all paragraphs in the section
                section.Paragraphs.Clear()
            Next
    
            'Save the document
            document.SaveToFile("RemoveAllParagraphs.docx", FileFormat.Docx2013)
        End Sub
    End Module

PM> Install-Package Spire.Doc

using System;
    using System.Drawing;
    using Spire.Doc;
    using Spire.Doc.Documents;
    
    namespace InsertImageWatermark
    {
        internal class Program
        {
            static void Main(string[] args)
            {
                //Create an object of Document class
                Document document = new Document();
    
                //Load a Word document from disk
                document.LoadFromFile(@"D:\Samples\Sample.docx");
    
                //Insert a text watermark
                InsertTextWatermark(document.Sections[0]);
    
                //Save the document
                document.SaveToFile("InsertTextWatermark.docx", FileFormat.Docx);
            }
            private static void InsertTextWatermark(Section section)
            {
                TextWatermark txtWatermark = new TextWatermark();
                txtWatermark.Text = "DO NOT COPY";
                txtWatermark.FontSize = 50;
                txtWatermark.Color = Color.Blue;
                txtWatermark.Layout = WatermarkLayout.Diagonal;
                section.Document.Watermark = txtWatermark;
    
            }
        }
    }

Imports System
    Imports System.Drawing
    Imports Spire.Doc
    Imports Spire.Doc.Documents
    
    Module Program
        Sub Main(args As String())
            'Create an object of Document class
            Dim document As New Document()
    
            'Load a Word document from disk
            document.LoadFromFile("D:\Samples\Sample.docx")
    
            'Insert a text watermark
            InsertTextWatermark(document.Sections(0))
    
            'Save the document
            document.SaveToFile("InsertTextWatermark.docx", FileFormat.Docx)
        End Sub
        Private Sub InsertTextWatermark(ByVal section As Section)
            Dim txtWatermark As New Spire.Doc.TextWatermark()
            txtWatermark.Text = "DO NOT COPY"
            txtWatermark.FontSize = 50
            txtWatermark.Color = Color.Blue
            txtWatermark.Layout = WatermarkLayout.Diagonal
            section.Document.Watermark = txtWatermark
        End Sub
    End Module

using System;
    using System.Drawing;
    using Spire.Doc;
    using Spire.Doc.Documents;
    
    namespace InsertWatermark
    {
        internal class Program
        {
            static void Main(string[] args)
            {
                //Create an object of Document class
                Document document = new Document();
    
                //Load a Word document from disk
                document.LoadFromFile(@"D:\Samples\Sample.docx");
    
                //Insert an image watermark
                InsertImageWatermark(document);
    
                //Save the document
                document.SaveToFile("InsertImageWatermark.docx", FileFormat.Docx);
            }
            private static void InsertImageWatermark(Document document)
            {
                PictureWatermark picture = new PictureWatermark();
                picture.Picture = Image.FromFile(@"D:\Samples\Watermark.png");
                picture.Scaling = 200;
                picture.IsWashout = false;
                document.Watermark = picture;
            }
        }
    }

Imports System
    Imports System.Drawing
    Imports Spire.Doc
    Imports Spire.Doc.Documents
    
    Module Program
        Sub Main(args As String())
            'Create an object of Document class
            Dim document As New Document()
    
            'Load a Word document from disk
            document.LoadFromFile("D:\Samples\Sample.docx")
    
            'Insert an image watermark
            InsertImageWatermark(document)
    
            'Save the document
            document.SaveToFile("InsertImageWatermark.docx", FileFormat.Docx)
        End Sub
        Private Sub InsertImageWatermark(ByVal document As Document)
            Dim picture As New PictureWatermark()
            picture.Picture = Image.FromFile("D:\Samples\Watermark.png")
            picture.Scaling = 250
            picture.IsWashout = False
            document.Watermark = picture
        End Sub
    End Module

PM> Install-Package Spire.Doc

using Spire.Doc;
    
    namespace DigitallySignWord
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document object
                Document doc = new Document();
    
                //Load a Word file
                doc.LoadFromFile("C:\\Users\\Administrator\\Desktop\\sample.docx");
    
                //Specify the certificate path
                string certificatePath = "C:\\Users\\Administrator\\Desktop\\gary.pfx";
    
                //Specify the password of the certificate
                string password = "e-iceblue";
    
                //Digitally sign the document while saving it to a .docx file
                doc.SaveToFile("AddDigitalSignature.docx", FileFormat.Docx2013, certificatePath, password);
            }
        }
    }

Imports Spire.Doc
    
    Namespace DigitallySignWord
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Document object
                Document doc  =  New Document()
    
                'Load a Word file
                doc.LoadFromFile("C:\\Users\\Administrator\\Desktop\\sample.docx")
    
                'Specify the certificate path
                Dim certificatePath As String =  "C:\\Users\\Administrator\\Desktop\\gary.pfx"
    
                'Specify the password of the certificate
                Dim password As String =  "e-iceblue"
    
                'Digitally sign the document while saving it to a .docx file
                doc.SaveToFile("AddDigitalSignature.docx", FileFormat.Docx2013, certificatePath, password)
            End Sub
        End Class
    End Namespace

PM> Install-Package Spire.Doc

using Spire.Doc;
    
    namespace PasswordProtectWordDocument
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document object
                Document document = new Document();
    
                //Load a Word file
                document.LoadFromFile(@"C:\Users\Administrator\Desktop\test.docx");
    
                //Encrypt the document with a password
                document.Encrypt("open-psd");
    
                //Save the document to another Word file
                document.SaveToFile("Encryption.docx", FileFormat.Docx);
            }
        }
    }

Imports Spire.Doc
    
    Namespace PasswordProtectWordDocument
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Document object
                Dim document As Document =  New Document()
    
                'Load a Word file
                document.LoadFromFile("C:\Users\Administrator\Desktop\test.docx")
    
                'Encrypt the document with a password
                document.Encrypt("open-psd")
    
                'Save the document to another Word file
                document.SaveToFile("Encryption.docx", FileFormat.Docx)
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    
    namespace ChangeDocumentPermission
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document object
                Document document = new Document();
    
                //Load a Word document
                document.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.docx");
    
                //Set the document permission and set the permission password
                document.Protect(ProtectionType.AllowOnlyFormFields, "permission-psd");
    
                //Save the document to another Word file
                document.SaveToFile("Permission.docx");
            }
        }
    }

Imports Spire.Doc
    
    Namespace ChangeDocumentPermission
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Document object
                Dim document As Document =  New Document()
    
                'Load a Word document
                document.LoadFromFile("C:\Users\Administrator\Desktop\sample.docx")
    
                'Set the document permission and set the permission password
                document.Protect(ProtectionType.AllowOnlyFormFields, "permission-psd")
    
                'Save the document to another Word file
                document.SaveToFile("Permission.docx")
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    
    namespace ProtectSpecificSection
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document object
                Document doc = new Document();
    
                //Load a Word document
                doc.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.docx");
    
                //Set editing restriction as "AllowOnlyFormFields"
                doc.Protect(ProtectionType.AllowOnlyFormFields, "permissionPsd");
    
                //Unprotect section 2
                doc.Sections[1].ProtectForm = false;
    
                //Save the document to another Word file
                doc.SaveToFile("ProtectSection.docx");
            }
        }
    }

Imports Spire.Doc
    
    Namespace ProtectSpecificSection
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Document object
                Document doc  =  New Document()
    
                'Load a Word document
                doc.LoadFromFile("C:\Users\Administrator\Desktop\sample.docx")
    
                'Set editing restriction as " AllowOnlyFormFields"
                doc.Protect(ProtectionType.AllowOnlyFormFields, "permissionPsd")
    
                'Unprotect section 2
                doc.Sections(1).ProtectForm = False
    
                'Save the document to another Word file
                doc.SaveToFile("ProtectSection.docx")
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    
    namespace MarkAsFinal
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document object
                Document doc = new Document();
    
                //Load a Word document
                doc.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.docx");
    
                //Get custom document properties
                CustomDocumentProperties customProperties = doc.CustomDocumentProperties;
    
                //Add "_MarkAsFinal" property to the document
                customProperties.Add("_MarkAsFinal", true);
    
                //Save the document to another Word file
                doc.SaveToFile("MarkAsFinal.docx");
            }
        }
    }

Imports Spire.Doc
    
    Namespace MarkAsFinal
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Document object
                Document doc  =  New Document()
    
                'Load a Word document
                doc.LoadFromFile("C:\Users\Administrator\Desktop\sample.docx")
    
                'Get custom document properties
                Dim customProperties As CustomDocumentProperties =  doc.CustomDocumentProperties
    
                'Add "_MarkAsFinal" property to the document
                customProperties.Add("_MarkAsFinal", True)
    
                'Save the document to another Word file
                doc.SaveToFile("MarkAsFinal.docx")
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    
    namespace RemovePassword
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document object
                Document document = new Document();
    
                //Load an encrypted Word document
                document.LoadFromFile(@"C:\Users\Administrator\Desktop\Encryption.docx", FileFormat.Docx, "open-psd");
    
                //Remove encryption
                document.RemoveEncryption();
    
                //Save the document to another Word file
                document.SaveToFile("Decryption.docx", FileFormat.Docx);
            }
        }
    }

Imports Spire.Doc
    
    Namespace RemovePassword
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Create a Document object
                Dim document As Document =  New Document()
    
                'Load an encrypted Word document
                document.LoadFromFile("C:\Users\Administrator\Desktop\Encryption.docx", FileFormat.Docx, "open-psd")
    
                'Remove encryption
                document.RemoveEncryption()
    
                'Save the document to another Word file
                document.SaveToFile("Decryption.docx", FileFormat.Docx)
            End Sub
        End Class
    End Namespace

PM> Install-Package Spire.Doc

using Spire.Doc;
    
    namespace BuiltinDocumentProperties
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document instance
                Document document = new Document();
                //Load a Word document
                document.LoadFromFile("Sample.docx");
    
                //Add built-in document properties to the document
                BuiltinDocumentProperties standardProperties = document.BuiltinDocumentProperties;
                standardProperties.Title = "Add Document Properties";
                standardProperties.Subject = "C# Example";
                standardProperties.Author = "James";
                standardProperties.Company = "Eiceblue";
                standardProperties.Manager = "Michael";
                standardProperties.Category = "Document Manipulation";
                standardProperties.Keywords = "C#, Word, Document Properties";
                standardProperties.Comments = "This article shows how to add document properties";
    
                //Save the result document
                document.SaveToFile("StandardDocumentProperties.docx", FileFormat.Docx2013);
            }
        }
    }

Imports Spire.Doc
    
    Namespace BuiltinDocumentProperties
        Friend Class Program
            Private Shared Sub Main(ByVal args As String())
                'Create a Document instance
                Dim document As Document = New Document()
                'Load a Word document
                document.LoadFromFile("Sample.docx")
    
                'Add built-in document properties to the document
                Dim standardProperties As BuiltinDocumentProperties = document.BuiltinDocumentProperties
                standardProperties.Title = "Add Document Properties"
                standardProperties.Subject = "C# Example"
                standardProperties.Author = "James"
                standardProperties.Company = "Eiceblue"
                standardProperties.Manager = "Michael"
                standardProperties.Category = "Document Manipulation"
                standardProperties.Keywords = "C#, Word, Document Properties"
                standardProperties.Comments = "This article shows how to add document properties"
    
                'Save the result document
                document.SaveToFile("StandardDocumentProperties.docx", FileFormat.Docx2013)
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    using System;
    
    namespace CustomDocumentProperties
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document instance
                Document document = new Document();
                //Load a Word document
                document.LoadFromFile("Sample.docx");
    
                //Add custom document properties to the document
                CustomDocumentProperties customProperties = document.CustomDocumentProperties;
                customProperties.Add("Document ID", 1);
                customProperties.Add("Authorized", true);
                customProperties.Add("Authorized By", "John Smith");
                customProperties.Add("Authorized Date", DateTime.Today);
    
                //Save the result document
                document.SaveToFile("CustomDocumentProperties.docx", FileFormat.Docx2013);
            }
        }
    }

Imports Spire.Doc
    
    Namespace CustomDocumentProperties
        Friend Class Program
            Private Shared Sub Main(ByVal args As String())
                'Create a Document instance
                Dim document As Document = New Document()
                'Load a Word document
                document.LoadFromFile("Sample.docx")
    
                'Add custom document properties to the document
                Dim customProperties As CustomDocumentProperties = document.CustomDocumentProperties
                customProperties.Add("Document ID", 1)
                customProperties.Add("Authorized", True)
                customProperties.Add("Authorized By", "John Smith")
                customProperties.Add("Authorized Date", Date.Today)
    
                'Save the result document
                document.SaveToFile("CustomDocumentProperties.docx", FileFormat.Docx2013)
            End Sub
        End Class
    End Namespace

PM> Install-Package Spire.Doc

using Spire.Doc;
    
    namespace CompareDocuments
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Load one Word document
                Document doc1 = new Document("C:\\Users\\Administrator\\Desktop\\original.docx");
    
                //Load the other Word document
                Document doc2 = new Document("C:\\Users\\Administrator\\Desktop\\revised.docx");
    
                //Compare two documents
                doc1.Compare(doc2, "John");
    
                //Save the differences in a third document
                doc1.SaveToFile("Differences.docx", FileFormat.Docx2013);
                doc1.Dispose();
            }
        }
    }

Imports Spire.Doc
    
    Namespace CompareDocuments
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Load one Word document
                Dim doc1 As Document =  New Document("C:\\Users\\Administrator\\Desktop\\original.docx")
    
                'Load the other Word document
                Dim doc2 As Document =  New Document("C:\\Users\\Administrator\\Desktop\\revised.docx")
    
                'Compare two documents
                doc1.Compare(doc2, "John")
    
                'Save the differences in a third document
                doc1.SaveToFile("Differences.docx", FileFormat.Docx2013)
                doc1.Dispose()
            End Sub
        End Class
    End Namespace

using Spire.Doc;
    using Spire.Doc.Fields;
    using System;
    
    namespace GetDifferencesInList
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Load one Word document
                Document doc1 = new Document("C:\\Users\\Administrator\\Desktop\\original.docx");
    
                //Load the other Word document
                Document doc2 = new Document("C:\\Users\\Administrator\\Desktop\\revised.docx");
    
                //Compare the two Word documents
                doc1.Compare(doc2, "Author");
    
                //Get the revisions
                DifferRevisions differRevisions = new DifferRevisions(doc1);
    
                //Return the insertion revisions in a list
                var insetRevisionsList = differRevisions.InsertRevisions;
    
                //Return the deletion revisions in a list
                var deletRevisionsList = differRevisions.DeleteRevisions;
    
                //Create two int variables
                int m = 0;
                int n = 0;
    
                //Loop through the insertion revision list
                for (int i = 0; i < insetRevisionsList.Count; i++)
                {
                    if (insetRevisionsList[i] is TextRange)
                    {
                        m += 1;
                        //Get the specific revision and get its content
                        TextRange textRange = insetRevisionsList[i] as TextRange;
                        Console.WriteLine("Insertion #" + m + ":" + textRange.Text);
                    }
                }
                Console.WriteLine("=====================");
    
                //Loop through the deletion revision list
                for (int i = 0; i < deletRevisionsList.Count; i++)
                {
                    if (deletRevisionsList[i] is TextRange)
                    {
                        n += 1;
                        //Get the specific revision and get its content
                        TextRange textRange = deletRevisionsList[i] as TextRange;
                        Console.WriteLine("Deletion #" + n + ":" + textRange.Text);
                    }
                }
                Console.ReadKey();
            }
        }
    }

Imports Spire.Doc
    Imports Spire.Doc.Fields
    Imports System
    
    Namespace GetDifferencesInList
        Class Program
            Shared  Sub Main(ByVal args() As String)
                'Load one Word document
                Dim doc1 As Document =  New Document("C:\\Users\\Administrator\\Desktop\\original.docx")
    
                'Load the other Word document
                Dim doc2 As Document =  New Document("C:\\Users\\Administrator\\Desktop\\revised.docx")
    
                'Compare the two Word documents
                doc1.Compare(doc2, "Author")
    
                'Get the revisions
                Dim differRevisions As DifferRevisions =  New DifferRevisions(doc1)
    
                'Return the insertion revisions in a list
                Dim insetRevisionsList As var =  differRevisions.InsertRevisions
    
                'Return the deletion revisions in a list
                Dim deletRevisionsList As var =  differRevisions.DeleteRevisions
    
                'Create two int variables
                Dim m As Integer =  0
                Dim n As Integer =  0
    
                'Loop through the insertion revision list
                Dim i As Integer
                For  i = 0 To  insetRevisionsList.Count- 1  Step  i + 1
                    If TypeOf insetRevisionsList(i) Is TextRange Then
                        m += 1
                        'Get the specific revision and get its content
                        Dim textRange As TextRange =  insetRevisionsList(i) as TextRange
                        Console.WriteLine("Insertion #" + m + ":" + textRange.Text)
                    End If
                Next
                Console.WriteLine("=====================")
    
                'Loop through the deletion revision list
                Dim i As Integer
                For  i = 0 To  deletRevisionsList.Count- 1  Step  i + 1
                    If TypeOf deletRevisionsList(i) Is TextRange Then
                        n += 1
                        'Get the specific revision and get its content
                        Dim textRange As TextRange =  deletRevisionsList(i) as TextRange
                        Console.WriteLine("Deletion #" + n + ":" + textRange.Text)
                    End If
                Next
                Console.ReadKey()
            End Sub
        End Class
    End Namespace