Install-Package PDFSharp

using PDFSharp;
using PDFSharp.Drawing;
using PDFSharp.Pdf;
using PDFSharp.Pdf.IO;

// 創(chuàng)建一個新的PDF文檔
PdfDocument document = new PdfDocument();
// 添加一頁
PdfPage page = document.AddPage();
// 獲取頁面的繪圖對象
XGraphics gfx = XGraphics.FromPdfPage(page);
// 開始繪制內(nèi)容
gfx.DrawString("Hello, PDFSharp!", new XFont("Arial", 20), XBrushes.Black, new XPoint(100, 100));
// 保存文檔
document.Save("HelloWorld.pdf");

PdfDocument document = new PdfDocument();
PdfPage page = document.AddPage();

XGraphics gfx = XGraphics.FromPdfPage(page);

gfx.DrawString("Welcome to PDFSharp!", new XFont("Arial", 12), XBrushes.Black, new XPoint(50, 100));

gfx.DrawImage(XImage.FromFile("path_to_image.jpg"), new XPoint(50, 200), 150, 100);

document.Save("BasicPDF.pdf");

// 繪制一個矩形
gfx.DrawRectangle(XBrushes.SkyBlue, 100, 150, 150, 100);

// 繪制圓形
gfx.DrawEllipse(XBrushes.Silver, 300, 150, 100, 100);

// 繪制一個三角形
XGraphicsPath path = new XGraphicsPath();
path.AddPolygon(new XPoint[] { new XPoint(50, 200), new XPoint(150, 250), new XPoint(100, 300) });
gfx.DrawPath(XBrushes.SeaGreen, path);

// 使用不同的字體和顏色
gfx.DrawString("Bold and Beautiful", new XFont("Arial", 16, XFontStyle.Bold), XBrushes.Blue, new XPoint(50, 300));

// 文本對齊設置
gfx.DrawString("This is aligned left", new XFont("Arial", 10), XBrushes.Black, new XRect(50, 400, 200, 200), XStringFormats.TopLeft);
gfx.DrawString("This is centered", new XFont("Arial", 10), XBrushes.Black, new XRect(50, 450, 200, 200), XStringFormats.Center);
gfx.DrawString("This is aligned right", new XFont("Arial", 10), XBrushes.Black, new XRect(50, 500, 200, 200), XStringFormats.BottomRight);

// 添加一個文本字段
PdfDictionary annots = page.Elements.GetDictionary("/Annots");
PdfDictionary field = annots.CreateIndirectObject(new PdfDictionary(document));
field.Elements.SetName("/Subtype", "/Widget");
field.Elements.SetName("/FT", "/Tx");
field.Elements.SetName("/T", "MyTextField");
field.Elements.SetNumber("/Ff", 1); // 1 表示文本字段
// 將字段添加到頁面
page.Elements.SetReference("/Annots", annots.Add(field));

// 添加一個文本注釋
PdfDictionary annot = page.Elements.GetDictionary("/Annots");
PdfDictionary textAnnot = annot.CreateIndirectObject(new PdfDictionary(document));
textAnnot.Elements.SetName("/Subtype", "/Text");
textAnnot.Elements.SetString("/Contents", "This is a text annotation!");
// 將注釋添加到頁面
page.Elements.SetReference("/Annots", annots.Add(textAnnot));

// 加密PDF文檔，設置密碼保護
document.Intent = PdfDocumentIntent.Encrypt;
document.SecuritySettings.OwnerPassword = "ownerPassword";
document.SecuritySettings.UserPassword = "userPassword";
document.SecuritySettings.PermitAccessibilityExtractContent = true;
document.SecuritySettings.PermitAnnotations = true;
document.SecuritySettings.PermitAssembleDocument = true;
document.SecuritySettings.PermitExtractContent = true;
document.SecuritySettings.PermitFillInFormFields = true;
document.SecuritySettings.PermitModifyDocument = false;
document.SecuritySettings.PermitPrint = true;
document.SecuritySettings.PermitPrintDegraded = true;

// 保存加密后的文檔
document.Save("EncryptedPDF.pdf");

var section = document.AddSection();
section.PageSetup.PageFormat = PageFormat.A4;
section.PageSetup.Orientation = Orientation.Portrait;
section.Format.Columns.Count = 2; // 設置為兩列

// 添加文本到第一節(jié)
var paragraph = section.AddParagraph("第一列文本內(nèi)容");
paragraph.Format.Borders.Width = 0.75;
paragraph.Format雙邊框?qū)挾仍O置為0.75，為每節(jié)文本創(chuàng)建可見的邊框。
// 為第二列添加文本
paragraph = section.AddParagraph("第二列文本內(nèi)容");
paragraph.Format.Borders.Width = 0.75;

// 定義一個新的樣式
var style = new MigraDoc.DocumentObjectModel.Styles.Style("MyCustomStyle");
style.Font.Name = "Times New Roman";
style.Font.Size = 12;
style.ParagraphFormat.SpaceBefore = "1cm";
document.Styles.Add(style);

// 將自定義樣式應用到段落
var paragraph = section.AddParagraph();
paragraph.Style = "MyCustomStyle";
paragraph.AddText("應用了自定義樣式的文本內(nèi)容。");

// 示例：使用MigraDoc模板填充數(shù)據(jù)生成銷售報告
var doc = new MigraDoc.DocumentObjectModel.Document();
var section = doc.AddSection();
var paragraph = section.AddParagraph("銷售數(shù)據(jù)");
// 添加數(shù)據(jù)填充點，例如銷售總額、平均銷售額等
paragraph.AddText("本月銷售總額: " + salesData.TotalSales.ToString());
paragraph.AddText("平均銷售額: " + salesData.AverageSales.ToString());

// 生成PDF
var pdfRenderer = new MigraDoc.Rendering.PdfRender();
pdfRenderer.RenderObject(document, "銷售報告.pdf");

// 創(chuàng)建新的PDF文檔實例
PdfWriter writer = new PdfWriter("example.pdf");
PdfDocument pdf = new PdfDocument(writer);
Document document = new Document(pdf);

// 添加內(nèi)容到PDF文檔
document.Add(new Paragraph("Hello iTextSharp!"));
// 關閉文檔以保存更改
document.Close();

ImageData imageData = ImageDataFactory.Create("path/to/image.jpg");
Image image = new Image(imageData);
// 將圖像添加到PDF文檔
document.Add(image);

PdfPTable table = new PdfPTable(3); // 3列的表格
table.AddCell("Cell 1,1");
table.AddCell("Cell 1,2");
table.AddCell("Cell 1,3");
// 添加更多行...
document.Add(table);

PdfAcroForm form = PdfAcroForm.GetAcroForm(writer, true);
form.AddField(new TextField(writer, new Rectangle(36, 788, 144, 806), "name", "Default value"));
form.Write(writer);

document.Close();

PdfReader reader = new PdfReader("form-filled.pdf");
PdfAcroForm form = PdfAcroForm.GetAcroForm(reader, true);

// 提取表單數(shù)據(jù)
TextField nameField = (TextField)form.GetField("name");
string nameValue = nameField.GetValue();

Console.WriteLine($"Name: {nameValue}");

reader.Close();

PdfStamper stamper = new PdfStamper(reader, new FileStream("filled-form.pdf", FileMode.Create));

// 創(chuàng)建表單數(shù)據(jù)字典
Dictionary<String, String> fieldValues = new Dictionary<String, String>();
fieldValues.Add("name", "John Doe");

// 填充表單
stamper.AcroFields.SetFields(fieldValues);

stamper.Close();
reader.Close();

BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
Paragraph p = new Paragraph("Hello, world!", new Font(bf, 12));

BaseFont chineseFont = BaseFont.CreateFont("path/to/SimSun.ttc", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);

PdfDestination dest = new PdfDestination(PdfDestination.FIT);
PdfOutline root = writer.Outlines;
PdfOutline outline = root.AddOutline("Chapter 1");
outline.AddDestination(dest);

// 添加帶有書簽的頁面
document.Add(new Paragraph("This is a bookmarked page"));

PdfAnnotation annotation = new PdfAnnotation(writer, new Rectangle(36, 700, 100, 650), "This is an annotation");
// 設置注釋屬性...

document.Add(annotation);

Install-Package PDFCreatorPilot

// 創(chuàng)建一個PDF文檔實例
using (PdfDocument pdf = new PdfDocument())
{
    // 添加一個頁面
    PdfPage page = pdf.AddPage();

    // 在頁面上添加一些文本
    page.Canvas.DrawString("Hello, PDF!", new PdfFont(PdfFontFamily.Helvetica, 12));

    // 保存文檔
    pdf.Save("example.pdf");
}

// 創(chuàng)建文檔實例
using (PdfDocument pdf = new PdfDocument())
{
    // 設置頁面大小和邊距
    PdfPageFormat format = new PdfPageFormat();
    format.Orientation = PdfPageOrientation.Portrait;
    format.Size = PdfPageSize.A4;
    format.MarginTop = 72;
    format.MarginBottom = 72;
    format.MarginLeft = 72;
    format.MarginRight = 72;

    // 添加頁面并應用格式
    PdfPage page = pdf.AddPage(format);
    page.Canvas.TranslateTransform(72, 72);

    // 添加段落
    PdfParagraph paragraph = page.Canvas.CreateParagraph();
    paragraph.SpacingAfter = 10;
    paragraph.MarginBottom = 10;

    // 設置字體和大小
    PdfFont font = new PdfFont(PdfFontFamily.TimesNewRoman, 12);
    paragraph.Font = font;

    // 添加文本并設置格式
    paragraph.AddText("This is an example of a complex document layout using PDF Creator Pilot.");
    paragraph.AddLineBreak();
    paragraph.AddText("You can create tables, charts, and advanced text formatting.");

    // 添加段落末尾的頁碼
    paragraph = page.Canvas.CreateParagraph();
    paragraph.Alignment = PdfParagraphAlignment.Center;
    paragraph.Font = font;
    paragraph.AddText($"Page {pdf.Pages.Count} of {{pdf.Pages.Count}}");

    // 保存文檔
    pdf.Save("complex_document.pdf");
}

// ASP.NET控制器方法示例
public IActionResult GeneratePDFReport()
{
    // 創(chuàng)建PDF文檔
    using (PdfDocument pdf = new PdfDocument())
    {
        // 添加頁面和內(nèi)容（省略具體實現(xiàn)）
        // ...

        // 將PDF文檔內(nèi)容保存到MemoryStream
        MemoryStream stream = new MemoryStream();
        pdf.Save(stream);

        // 將MemoryStream轉(zhuǎn)換為byte數(shù)組并返回給客戶端
        byte[] pdfBytes = stream.ToArray();
        return File(pdfBytes, "application/pdf", "report.pdf");
    }
}

using System;
using iTextSharp.text.pdf;

namespace ReadPdfExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string pdfFilePath = "example.pdf";
            using (FileStream fs = new FileStream(pdfFilePath, FileMode.Open, FileAccess.Read))
            {
                PdfReader reader = new PdfReader(fs);
                for (int i = 1; i <= reader.NumberOfPages; i++)
                {
                    PdfDictionary page = reader.GetPageN(i);
                    PdfTextArray textArray = page.GetAsTextArray(PdfName.CONTENTS);
                    if (textArray != null)
                    {
                        foreach (var str in textArray)
                        {
                            Console.WriteLine(str.ToString());
                        }
                    }
                }
            }
        }
    }
}

using System;
using iTextSharp.text.pdf;
using iTextSharp.text.pdf.security;

namespace SignPdfExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string src = "unsigned.pdf";
            string dest = "signed.pdf";
            string keystore = "mykeystore.p12";
            char[] password = "password".ToCharArray();

            PdfReader reader = new PdfReader(src);
            using (FileStream os = new FileStream(dest, FileMode.Create))
            {
                PdfStamper stamper = new PdfStamper(reader, os);
                AcroFields fields = stamper.AcroFields;
                string name = "Signature1";
                fields.SetField(name, "Signed by iTextSharp");
                Rectangle rect = new Rectangle(240, 750, 400, 800);
                stamper.SignDetached(newCertificate(name, keystore, password), password, null, null, null, 0, rect);
            }
        }

        private static ICertificate newCertificate(String alias, String keystorePath, char[] password)
        {
            var ks = new FileStream(keystorePath, FileMode.Open, FileAccess.Read);
            var store = new Pkcs12Store(ks, password);
            var certEntry = store.GetCertificate(alias);
            var cert = certEntry.Certificate;
            var privKey = (RSACryptoServiceProvider)store.GetKey(alias).Key;

            return new Certificate cert, privKey, store.GetCertificateChain(alias));
        }
    }
}

using System;
using iTextSharp.text.pdf;
using iTextSharp.text.pdf.security;

namespace VerifySignatureExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string pdfFilePath = "signed.pdf";
            using (FileStream pdfFile = new FileStream(pdfFilePath, FileMode.Open, FileAccess.Read))
            {
                PdfReader reader = new PdfReader(pdfFile);
                LtvVerification ltv = new LtvVerification(reader);
                ltv.AddVerification("Signature1", null, null);
                ltv.Verify("mykeystore.p12", "password".ToCharArray());
                Console.WriteLine("The signature is valid.");
            }
        }
    }
}

using System;
using System.Collections.Generic;
using iTextSharp.text;
using iTextSharp.text.pdf;

namespace MergePdfExample
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> pdfs = new List<string>
            {
                "first.pdf", "second.pdf", "third.pdf"
            };
            string dest = "merged.pdf";

            using (FileStream fs = new FileStream(dest, FileMode.Create))
            {
                PdfCopy copy = new PdfCopy(new Document(), fs);
                foreach (string pdfPath in pdfs)
                {
                    PdfReader reader = new PdfReader(pdfPath);
                    copy.AddDocument(reader);
                }
                copy.Close();
            }
        }
    }
}

using System;
using iTextSharp.text;
using iTextSharp.text.pdf;

namespace SplitPdfExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string pdfFilePath = "merged.pdf";
            int[] pages = { 1, 3, 5 }; // 指定需要拆分的頁面
            string destFolder = "split";

            using (FileStream fsInput = new FileStream(pdfFilePath, FileMode.Open, FileAccess.Read))
            {
                PdfReader reader = new PdfReader(fsInput);
                for (int i = 0; i < pages.Length; i++)
                {
                    int page = pages[i];
                    using (FileStream fsOutput = new FileStream(destFolder + $@"\split_page{page}.pdf", FileMode.Create))
                    {
                        PdfWriter writer = PdfWriter.GetInstance(new Document(), fsOutput);
                        writer.OpenStream();
                        reader.OpenPage(page);
                        PdfImportedPage importedPage = writer.GetImportedPage(reader, page);
                        Document document = writer.GetDocument();
                        document.Open();
                        document.Add(importedPage);
                        document.Close();
                        writer.CloseStream();
                    }
                }
                reader.Close();
            }
        }
    }
}

using (FileStream fs = new FileStream("protected.pdf", FileMode.Create))
{
    PdfStamper stamper = new PdfStamper(new PdfReader("original.pdf", new FileStream("ownerPassword.pdf", FileMode.Create)),
                                         fs, '\0', true);
    stamper.SetEncryption(
        new byte[] { 0x00, 0x00, 0x00, 0x00 }, // 用戶密碼
        null,                                  // 所有者密碼為空
        EncryptionConstants.ALLOW_PRINTING,    // 打印權限
        EncryptionConstants.ENCRYPTION_AES_128); // 使用AES-128加密算法
    stamper.FormFlattening = true;
    stamper.Close();
    fs.Close();
}

from pdfminer.high_level import extract_text

# 指定PDF文檔路徑
pdf_path = 'example.pdf'
# 調(diào)用函數(shù)提取PDF中的文本
text = extract_text(pdf_path)
# 輸出提取的文本
print(text)