PM> Install-Package Spire.XLS

using Spire.Xls;

namespace LockCells
{
    class Program
    {
        static void Main(string[] args)
        {
            //创建 Workbook 类的对象
            Workbook workbook = new Workbook();

            //载入 Excel 表格
            workbook.LoadFromFile(@"C:\示例.xlsx");

            //获取第一个工作表
            Worksheet sheet = workbook.Worksheets[0];

            //解锁该工作表中所有已使用的单元格
            CellRange usedRange = sheet.Range;
            usedRange.Style.Locked = false;

            //锁定指定单元格
            CellRange cells = sheet.Range["A1:F2"];
            cells.Style.Locked = true;

            //用密码保护该工作表
            sheet.Protect("123456", SheetProtectionType.All);

            //保存 Excel 表格
            workbook.SaveToFile("锁定单元格.xlsx", ExcelVersion.Version2016);
        }
    }
}

Imports Spire.Xls

Namespace LockCells
    Class Program
        Shared Sub Main(ByVal args() As String)
            '创建 Workbook 类的对象
            Dim workbook As Workbook = New Workbook()

            '载入 Excel 表格
            workbook.LoadFromFile("C:\示例.xlsx")

            '获取第一个工作表
            Dim sheet As Worksheet = workbook.Worksheets(0)

            '解锁该工作表中所有已使用的单元格
            Dim usedRange As CellRange = sheet.Range
            usedRange.Style.Locked = False

            '锁定指定单元格
            Dim cells As CellRange = sheet.Range("A1:F2")
            cells.Style.Locked = True

            '用密码保护该工作表
            sheet.Protect("123456", SheetProtectionType.All)

            '保存 Excel 表格
            workbook.SaveToFile("锁定单元格.xlsx", ExcelVersion.Version2016)
        End Sub
    End Class
End Namespace

PM> Install-Package Spire.Doc

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

namespace FindAndHighlightText
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //创建 Document 类的对象
            Document document = new Document();

            //载入Word文档
            document.LoadFromFile(@"C:/示例.docx");

            //找到所有匹配的文本
            TextSelection[] text = document.FindAllString("庄子", false, true);

            //循环遍历所有匹配的文本，并设置突出显示
            foreach (TextSelection seletion in text)
            {
                seletion.GetAsOneRange().CharacterFormat.HighlightColor = Color.Yellow;
            }

            //保存文档
            document.SaveToFile("查找并突出显示文本.docx", FileFormat.Docx);
        }
    }
}

Imports System
Imports System.Drawing
Imports Spire.Doc
Imports Spire.Doc.Documents

Namespace FindAndHighlightText
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            '创建 Document 类的对象
            Dim document As Document = New Document()

            '载入Word文档
            document.LoadFromFile("C:/示例.docx")

            '找到所有匹配的文本
            Dim text() As TextSelection = document.FindAllString("庄子", False, True)

            '循环遍历所有匹配的文本，并设置突出显示
            Dim seletion As TextSelection
            For Each seletion In text
                seletion.GetAsOneRange().CharacterFormat.HighlightColor = Color.Yellow
            Next

            '保存文档
            document.SaveToFile("查找并突出显示文本.docx", FileFormat.Docx)
        End Sub
    End Class
End Namespace

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>12.9.0</version>
    </dependency>
</dependencies>

import com.spire.pdf.conversion.PdfToLinearizedPdfConverter;

public class ToLinerlizedPDF {
    public static void main(String[] args) {
        //加载PDF文档
        PdfToLinearizedPdfConverter converter = new PdfToLinearizedPdfConverter("samplefile.pdf");

        //转为线性PDF，保存到指定路径
        converter.toLinearizedPdf("output.pdf");
    }
}

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>12.9.0</version>
    </dependency>
</dependencies>

import com.spire.pdf.FileFormat;
import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.graphics.*;

import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class TXTToPDF {
    public static void main(String[] args) throws Exception {
        //从TXT文件读取文本
        String text = readTextFromFile("示例.txt");

        //创建PdfDocument类的对象
        PdfDocument pdf = new PdfDocument();
        //添加一个页面
        PdfPageBase page = pdf.getPages().add();

        //创建PdfFont类的对象
        Font font = new Font("宋体", Font.PLAIN, 11);
        PdfTrueTypeFont font1 = new PdfTrueTypeFont(font);

        //创建PdfTextLayout类的对象
        PdfTextLayout textLayout = new PdfTextLayout();
        textLayout.setBreak(PdfLayoutBreakType.Fit_Page);
        textLayout.setLayout(PdfLayoutType.Paginate);

        //创建PdfStringFormat类的对象
        PdfStringFormat format = new PdfStringFormat();
        format.setLineSpacing(20f);

        //用读取的文本创建PdfTextWidget类的对象
        PdfTextWidget textWidget = new PdfTextWidget(text, font1, PdfBrushes.getBlack());
        //设置字符格式
        textWidget.setStringFormat(format);

        //将文本添加到PDF页面的指定位置
        Rectangle2D.Float bounds = new Rectangle2D.Float();
        bounds.setRect(0,25,page.getCanvas().getClientSize().getWidth(),page.getCanvas().getClientSize().getHeight());
        textWidget.draw(page, bounds, textLayout);

        //保存结果文件
        pdf.saveToFile("TXT转PDF.pdf", FileFormat.PDF);
    }
    public static String readTextFromFile(String fileName) throws IOException {
        StringBuffer sb = new StringBuffer();
        BufferedReader br = new BufferedReader(new FileReader(fileName));
        String content = null;
        while ((content = br.readLine()) != null) {
            sb.append(content);
            sb.append("\n");
        }
        return sb.toString();
    }
}

PM> Install-Package Spire.PDF

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

namespace ConvertTextToPdf
{
    class Program
    {
        static void Main(string[] args)
        {
            //读取TXT文件中的文本内容
            string text = File.ReadAllText("示例.txt");

            //创建PdfDocument类的对象
            PdfDocument pdf = new PdfDocument();
            //添加一个页面
            PdfPageBase page = pdf.Pages.Add();

            //创建PdfFont类的对象
            PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("宋体", 11f), true);

            //创建PdfTextLayout类的对象
            PdfTextLayout textLayout = new PdfTextLayout();
            textLayout.Break = PdfLayoutBreakType.FitPage;
            textLayout.Layout = PdfLayoutType.Paginate;

            //创建PdfStringFormat类的对象
            PdfStringFormat format = new PdfStringFormat();
            format.Alignment = PdfTextAlignment.Justify;
            format.LineSpacing = 20f;

            //用读取的文本创建PdfTextWidget类的对象
            PdfTextWidget textWidget = new PdfTextWidget(text, font, PdfBrushes.Black);
            //设置文本格式
            textWidget.StringFormat = format;

            //将文本添加到页面指定位置
            RectangleF bounds = new RectangleF(new PointF(10, 25), page.Canvas.ClientSize);
            textWidget.Draw(page, bounds, textLayout);

            //保存结果文件
            pdf.SaveToFile("TXT转PDF.pdf", FileFormat.PDF);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Graphics
Imports System.Drawing
Imports System.IO

Namespace ConvertTextToPdf
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            '读取TXT文件中的文本内容
            Dim text = File.ReadAllText("示例.txt")

            '创建PdfDocument类的对象
            Dim pdf As PdfDocument = New PdfDocument()
            '添加一个页面
            Dim page As PdfPageBase = pdf.Pages.Add()

            '创建PdfFont类的对象
            Dim font As PdfFont = New PdfFont(PdfFontFamily.Helvetica, 11)

            '创建PdfTextLayout类的对象
            Dim textLayout As PdfTextLayout = New PdfTextLayout()
            textLayout.Break = PdfLayoutBreakType.FitPage
            textLayout.Layout = PdfLayoutType.Paginate

            '创建PdfStringFormat类的对象
            Dim format As PdfStringFormat = New PdfStringFormat()
            format.Alignment = PdfTextAlignment.Justify
            format.LineSpacing = 20.0F

            '用读取的文本创建PdfTextWidget类的对象
            Dim textWidget As PdfTextWidget = New PdfTextWidget(text, font, PdfBrushes.Black)
            '设置文本格式
            textWidget.StringFormat = format

            '将文本添加到页面指定位置
            Dim bounds As RectangleF = New RectangleF(New PointF(10, 25), page.Canvas.ClientSize)
            textWidget.Draw(page, bounds, textLayout)

            '保存结果文件
            pdf.SaveToFile("TXT转PDF.pdf", FileFormat.PDF)
        End Sub
    End Class
End Namespace

PM> Install-Package Spire.PDF

using Spire.Pdf.Conversion;

namespace ConvertPdfToLinearized
{
    class Program
    {
        static void Main(string[] args)
        {
            //加载PDF文档
            PdfToLinearizedPdfConverter converter = new PdfToLinearizedPdfConverter("成都.pdf");
            //将文件转为线性化PDF
            converter.ToLinearizedPdf("线性化PDF.pdf");
        }
    }
}

Imports Spire.Pdf.Conversion

Namespace ConvertPdfToLinearized
    
    Class Program
        
        Private Shared Sub Main(ByVal args() As String)
            '加载PDF文档
            Dim converter As PdfToLinearizedPdfConverter = New PdfToLinearizedPdfConverter(“成都.pdf")
            '将文件转为线性化PDF
            converter.ToLinearizedPdf("线性化PDF.pdf")
        End Sub
    End Class
End Namespace