C#&.Net干货分享- 构建Spire-Office相关Helper操作Word、Excel、PDF等

先下载好如下的组件：

直接使用完整源码分享：

namespace Frame.Office
{
    /// <summary>
    /// Spire_WordHelper
    /// </summary>
    public static class Spire_WordHelper
    {
        /// <summary>
        /// 设置Word图片水印
        /// </summary>
        /// <param name="wordFilepath"></param>
        /// <param name="imageFilepath"></param>
        /// <param name="waterMarkSavePath"></param>
        public static void SetWordImageWaterMark(string wordFilepath, string imageFilepath, string waterMarkSavePath)
        {
            Document doc = new Document();
            doc.LoadFromFile(wordFilepath);
            PictureWatermark picture = new PictureWatermark();
            picture.Picture = Image.FromFile(imageFilepath);
            picture.Scaling = 80;
            doc.Watermark = picture;
            doc.SaveToFile(waterMarkSavePath);
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="wordFilepath"></param>
        /// <param name="waterMarkText"></param>
        /// <param name="fontSize"></param>
        /// <param name="waterMarkSavePath"></param>
        public static void SetWordTextWaterMark(string wordFilepath, string waterMarkText, float fontSize, string waterMarkSavePath)
        {
            Document document = new Document();
            document.LoadFromFile(wordFilepath);
            TextWatermark txtWatermark = new TextWatermark();
            txtWatermark.Text = waterMarkText;
            txtWatermark.FontSize = fontSize;
            txtWatermark.Layout = WatermarkLayout.Diagonal;
            document.Watermark = txtWatermark;
            document.SaveToFile(waterMarkSavePath);
        }

        /// <summary>
        /// 读取源文档表头文档的标题并将其仅插入另一个文档的第一页
        /// </summary>
        /// <param name="sourceWordFilepath">源文档路径</param>
        /// <param name="toWordFilepath">目标文档路径</param>
        /// <param name="saveWordFilepath">加工后保存的文档路径</param>
        public static void SetDocumentHeaderFooter(string sourceWordFilepath, string toWordFilepath, string saveWordFilepath)
        {
            Document sourceDocument = new Document();
            sourceDocument.LoadFromFile(sourceWordFilepath);
            Document toDocument = new Document();
            toDocument.LoadFromFile(toWordFilepath);
            HeaderFooter sourceHeaderFooter = sourceDocument.Sections[0].HeadersFooters.Header;
            HeaderFooter firstPageHeader = toDocument.Sections[0].HeadersFooters.FirstPageHeader;
            foreach (Section section in toDocument.Sections)
            {
                section.PageSetup.DifferentFirstPageHeaderFooter = true;
            }
            firstPageHeader.Paragraphs.Clear();
            foreach (DocumentObject documentObject in sourceHeaderFooter.ChildObjects)
            {
                firstPageHeader.ChildObjects.Add(documentObject.Clone());
            }
            toDocument.SaveToFile(saveWordFilepath, Spire.Doc.FileFormat.Docx);
        }

        /// <summary>
        /// 设置文档某一个段落的背景色
        /// </summary>
        /// <param name="sourceWordFilepath"></param>
        /// <param name="saveWordFilepath"></param>
        /// <param name="paragraphsIndex"></param>
        /// <param name="colorType"></param>
        public static void SetDocumentParagraphBackColor(string sourceWordFilepath, string saveWordFilepath, int paragraphsIndex, Color colorType)
        {
            Document sourceDocument = new Document();
            sourceDocument.LoadFromFile(sourceWordFilepath);
            Paragraph paragaph = sourceDocument.Sections[0].Paragraphs[paragraphsIndex];
            paragaph.Format.BackColor = colorType;
            sourceDocument.SaveToFile(saveWordFilepath, Spire.Doc.FileFormat.Docx);
        }

        /// <summary>
        /// 设置文档内某个指定文本，所有位置的都是高亮文本
        /// </summary>
        /// <param name="sourceWordFilepath"></param>
        /// <param name="saveWordFilepath"></param>
        /// <param name="paragraphsIndex"></param>
        /// <param name="highlightText"></param>
        /// <param name="colorType"></param>
        public static void SetDocumentAllParagraphTextBackgroundColor(string sourceWordFilepath, string saveWordFilepath, string highlightText, Color colorType)
        {
            Document sourceDocument = new Document();
            sourceDocument.LoadFromFile(sourceWordFilepath);
            int paragraphsCount = sourceDocument.Sections[0].Paragraphs.Count;
            Paragraph paragaph = null;
            TextSelection textSelection = null;
            TextRange textRange = null;
            for (int ii = 0; ii < paragraphsCount - 1; ii++)
            {
                paragaph = sourceDocument.Sections[0].Paragraphs[ii];
                textSelection = paragaph.Find(highlightText, true, false);
                textRange = textSelection.GetAsOneRange();
                textRange.CharacterFormat.TextBackgroundColor = colorType;
            }
            sourceDocument.SaveToFile(saveWordFilepath, Spire.Doc.FileFormat.Docx);
        }

        /// <summary>
        /// 设置文档某一个段落内某个文本为高亮文本
        /// </summary>
        /// <param name="sourceWordFilepath"></param>
        /// <param name="saveWordFilepath"></param>
        /// <param name="paragraphsIndex"></param>
        /// <param name="highlightText"></param>
        /// <param name="colorType"></param>
        public static void SetDocumentParagraphTextBackgroundColor(string sourceWordFilepath, string saveWordFilepath, int paragraphsIndex, string highlightText, Color colorType)
        {
            Document sourceDocument = new Document();
            sourceDocument.LoadFromFile(sourceWordFilepath);
            Paragraph paragaph = sourceDocument.Sections[0].Paragraphs[paragraphsIndex];
            TextSelection textSelection = paragaph.Find(highlightText, true, false);
            TextRange textRange = textSelection.GetAsOneRange();
            textRange.CharacterFormat.TextBackgroundColor = colorType;
            sourceDocument.SaveToFile(saveWordFilepath, Spire.Doc.FileFormat.Docx);
        }

        /// <summary>
        /// 删除文档的页与页之间的分页符号
        /// </summary>
        /// <param name="sourceWordFilepath"></param>
        /// <param name="fileFormat"></param>
        /// <param name="saveWordFilepath"></param>
        public static void DeleteDocumentObjectBreak(string sourceWordFilepath, Spire.Doc.FileFormat fileFormat, string saveWordFilepath)
        {
            Document sourceDocument = new Document();
            sourceDocument.LoadFromFile(sourceWordFilepath, fileFormat);
            for (int ii = 0; ii < sourceDocument.Sections[0].Paragraphs.Count; ii++)
            {
                Paragraph paragraph = sourceDocument.Sections[0].Paragraphs[ii];
                for (int jj = 0; jj < paragraph.ChildObjects.Count; jj++)
                {
                    DocumentObject documentObject = paragraph.ChildObjects[jj];
                    if (documentObject.DocumentObjectType == DocumentObjectType.Break)
                    {
                        Break bBreak = documentObject as Break;
                        paragraph.ChildObjects.Remove(bBreak);
                    }
                }
            }
            sourceDocument.SaveToFile(saveWordFilepath, fileFormat);
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="sourceFilePath"></param>
        /// <param name="errMsg"></param>
        /// <returns></returns>
        public static bool DocumentToPdf(string sourcePathFileName, string targetPathFileName)
        {
            bool flag = true;
            try
            {
                Regex regexExcel = new Regex(@"^.*?.(xls|xlsx)$");
                Regex regexWord = new Regex(@"^.*?.(doc|docx|ppt|pptx)$");
                string fileName = Path.GetFileName(sourcePathFileName).ToLower();
                if (regexExcel.IsMatch(fileName))//Excel
                {
                    Workbook workbook = new Workbook();
                    workbook.LoadFromFile(sourcePathFileName);
                    workbook.SaveToFile(targetPathFileName, Spire.Xls.FileFormat.PDF);
                }
                else if (regexWord.IsMatch(fileName))//Word
                {
                    Document document = new Document(sourcePathFileName);
                    document.SaveToFile(targetPathFileName, Spire.Doc.FileFormat.PDF);
                }
            }
            catch
            {
                flag = false;
            }
            return flag;
        }
    }

    /// <summary>
    /// Spire_PDFHelper导出数据源到PDF
    /// </summary>
    public static class Spire_PDFHelper
    {
        /// <summary>
        /// 提取PDF文件的文本内容
        /// </summary>
        /// <param name="pdfFilepath"></param>
        /// <returns></returns>
        public static string ReadPdfText(string pdfFilepath)
        {
            try
            {
                PdfDocument docPdf = new PdfDocument();
                docPdf.LoadFromFile(pdfFilepath);
                StringBuilder buffer = new StringBuilder();
                foreach (PdfPageBase page in docPdf.Pages)
                {
                    if (page.ExtractImages() != null)
                    {
                        List<Bitmap> bitmaps = new List<Bitmap>();
                        foreach (Image image in page.ExtractImages())
                        {
                            Bitmap bitmap = new Bitmap(image);
                            bitmaps.Add(bitmap);
                        }
                        buffer.Append(Aocr_ImageHelper.ReadBitmapText(bitmaps, AspriseOCRLanguages.LANGUAGE_ENG));
                    }
                    buffer.Append(page.ExtractText());
                }
                docPdf.Close();
                return buffer.ToString();
            }
            catch
            {
                return string.Empty;
            }
        }

        /// <summary>
        /// 提取PDF中的图片
        /// </summary>
        /// <param name="pdfFilepath"></param>
        public static void ReadPdfImage(string pdfFilepath)
        {
            try
            {
                PdfDocument docPdf = new PdfDocument();
                docPdf.LoadFromFile(pdfFilepath);
                IList<Image> images = new List<Image>();
                foreach (PdfPageBase page in docPdf.Pages)
                {
                    if (page.ExtractImages() != null)
                    {
                        foreach (Image image in page.ExtractImages())
                        {
                            images.Add(image);
                        }
                    }
                }
                docPdf.Close();
                int index = 0;
                foreach (Image image in images)
                {
                    String imageFileName = String.Format("Image-{0}.png", index++);
                    image.Save(imageFileName, ImageFormat.Png);
                }
            }
            catch
            {
            }
        }

        /// <summary>
        /// PDF增加图片水印
        /// </summary>
        /// <param name="pdfFilepath">源PDF文件</param>
        /// <param name="imageFilepath">水印图片</param>
        /// <param name="waterMarkSavePath">水印文件保存路径</param>
        public static void SetPdfImageWaterMark(string pdfFilepath, string imageFilepath, string waterMarkSavePath)
        {
            PdfDocument pdf = new PdfDocument();
            pdf.LoadFromFile(pdfFilepath);
            Image image = Image.FromFile(imageFilepath);
            foreach (PdfPageBase pdfPageBase in pdf.Pages)
            {
                pdfPageBase.BackgroundImage = image;
            }
            pdf.SaveToFile(waterMarkSavePath);
        }

        /// <summary>
        /// PDF增加文本水印
        /// </summary>
        /// <param name="pdfFilepath">源PDF文件</param>
        /// <param name="spireTextWaterMarkPara">水印参数</param>
        /// <param name="waterMarkSavePath">水印文件保存路径</param>
        public static void SetPdfTextWaterMark(string pdfFilepath, SpireTextWaterMarkPara spireTextWaterMarkPara, string waterMarkSavePath)
        {
            PdfDocument pdf = new PdfDocument();
            pdf.LoadFromFile(pdfFilepath);
            foreach (PdfPageBase pdfPageBase in pdf.Pages)
            {
                SizeF sizeF = new SizeF(spireTextWaterMarkPara.Width, spireTextWaterMarkPara.Height);
                PdfTilingBrush brush = new PdfTilingBrush(sizeF);
                brush.Graphics.SetTransparency(spireTextWaterMarkPara.Alpha);
                brush.Graphics.Save();
                brush.Graphics.TranslateTransform(brush.Size.Width / 2, brush.Size.Height / 2);
                brush.Graphics.RotateTransform(spireTextWaterMarkPara.RotateDegree);
                PdfFont pdfFont = new PdfFont(spireTextWaterMarkPara.PdfFontFamily, spireTextWaterMarkPara.FontSize);
                PdfStringFormat pdfStringFormat = new PdfStringFormat(spireTextWaterMarkPara.PdfTextAlignment);
                brush.Graphics.DrawString(spireTextWaterMarkPara.WaterMarkText, pdfFont, spireTextWaterMarkPara.PdfBrush, spireTextWaterMarkPara.XCoordinate, spireTextWaterMarkPara.YCoordinate, pdfStringFormat);
                brush.Graphics.Restore();
                brush.Graphics.SetTransparency(spireTextWaterMarkPara.Alpha);
                RectangleF rectangleF = new RectangleF(new PointF(0, 0), pdfPageBase.Canvas.ClientSize);
                pdfPageBase.Canvas.DrawRectangle(brush, rectangleF);
            }
            pdf.SaveToFile(waterMarkSavePath);
        }

        /// <summary>
        ///
        /// </summary>
        public static void SetPdfDocumentSignature(DataTable dataTable, PdfSignatureInfo pdfSignatureInfo, string saveWordFilepath)
        {
            PdfDocument pdfDocument = new PdfDocument();
            PdfPageBase pdfPageBase = pdfDocument.Pages.Add(PdfPageSize.A4);
            float y = 10;
            PdfTable pdfTable = new PdfTable();
            pdfTable.Style.CellPadding = 2;
            PdfBrush pdfBrush = PdfBrushes.Black;
            pdfTable.Style.BorderPen = new PdfPen(pdfBrush, 0.75f);
            pdfTable.Style.DefaultStyle.BackgroundBrush = PdfBrushes.SkyBlue;
            pdfTable.Style.DefaultStyle.Font = new PdfTrueTypeFont(new Font("Arial", 10f));
            pdfTable.Style.AlternateStyle = new PdfCellStyle();
            pdfTable.Style.AlternateStyle.BackgroundBrush = PdfBrushes.LightYellow;
            pdfTable.Style.AlternateStyle.Font = new PdfTrueTypeFont(new Font("Arial", 10f));
            pdfTable.Style.HeaderSource = PdfHeaderSource.ColumnCaptions;
            pdfTable.Style.HeaderStyle.BackgroundBrush = PdfBrushes.CadetBlue;
            pdfTable.Style.HeaderStyle.Font = new PdfTrueTypeFont(new Font("Arial", 11f, FontStyle.Bold));
            pdfTable.Style.HeaderStyle.StringFormat = new PdfStringFormat(PdfTextAlignment.Center);
            pdfTable.Style.ShowHeader = true;
            pdfTable.DataSourceType = PdfTableDataSourceType.TableDirect;
            pdfTable.DataSource = dataTable;
            float width = pdfPageBase.Canvas.ClientSize.Width - (pdfTable.Columns.Count + 1) * pdfTable.Style.BorderPen.Width;
            pdfTable.Columns[0].Width = width * 0.24f * width;
            pdfTable.Columns[0].StringFormat = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
            pdfTable.Columns[1].Width = width * 0.21f * width;
            pdfTable.Columns[1].StringFormat = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
            pdfTable.Columns[2].Width = width * 0.24f * width;
            pdfTable.Columns[2].StringFormat = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
            pdfTable.Columns[3].Width = width * 0.13f * width;
            pdfTable.Columns[3].StringFormat = new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle);
            pdfTable.Columns[4].Width = width * 0.18f * width;
            pdfTable.Columns[4].StringFormat = new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle);
            PdfLayoutResult result = pdfTable.Draw(pdfPageBase, new PointF(30, y));
            y = y + result.Bounds.Height + 10;

            PdfCertificate pdfCertificate = new PdfCertificate(pdfSignatureInfo.PdfCertificatePath, pdfSignatureInfo.PdfCertificatePathPwd);
            PdfSignature pdfSignature = new PdfSignature(pdfDocument, pdfPageBase, pdfCertificate, pdfSignatureInfo.PdfSignatureName);
            RectangleF rectangleF = new RectangleF(new PointF(150, y), new SizeF(260, 90));
            pdfSignature.Bounds = rectangleF;
            SetPdfSignatureInfo(pdfSignature, pdfSignatureInfo);
            pdfDocument.SaveToFile(saveWordFilepath, Spire.Pdf.FileFormat.PDF);
        }

        /// <summary>
        /// 设置签章属性
        /// </summary>
        /// <param name="pdfSignature"></param>
        /// <param name="pdfSignatureInfo"></param>
        public static void SetPdfSignatureInfo(PdfSignature pdfSignature, PdfSignatureInfo pdfSignatureInfo)
        {
            pdfSignature.NameLabel = pdfSignatureInfo.NameLabel;
            pdfSignature.Name = pdfSignatureInfo.Name;
            pdfSignature.DistinguishedName = pdfSignatureInfo.DistinguishedName;
            pdfSignature.LocationInfoLabel = pdfSignatureInfo.LocationInfoLabel;
            pdfSignature.LocationInfo = pdfSignatureInfo.LocationInfo;
            pdfSignature.ReasonLabel = pdfSignatureInfo.ReasonLabel;
            pdfSignature.Reason = pdfSignatureInfo.Reason;
            pdfSignature.DateLabel = pdfSignatureInfo.DateLabel;
            pdfSignature.Date = pdfSignatureInfo.Date;
            pdfSignature.ContactInfoLabel = pdfSignatureInfo.ContactInfoLabel;
            pdfSignature.ContactInfo = pdfSignatureInfo.ContactInfo;
            pdfSignature.Certificated = pdfSignatureInfo.Certificated;
            pdfSignature.GraphicsMode = pdfSignatureInfo.GraphicsMode;
            pdfSignature.SignImageSource = PdfImage.FromFile(pdfSignatureInfo.SignImageSourcePath);
            pdfSignature.DocumentPermissions = PdfCertificationFlags.ForbidChanges;
        }
    }

    /// <summary>
    /// Spire操作excel
    /// </summary>
    public static class Spire_ExcelHelper
    {
        /// <summary>
        /// Excel增加水印
        /// </summary>
        /// <param name="fileName"></param>
        /// <param name="watermarkText"></param>
        /// <returns></returns>
        public static string AddExcelSpire(string fileName, string watermarkText)
        {
            //初始化一个新工作簿并加载要添加水印的文件
            Workbook workbook = new Workbook();
            workbook.LoadFromFile(fileName);
            //在页眉插入图片
            Font font = new Font("arial", 40);
            foreach (Worksheet sheet in workbook.Worksheets)
            {
                //调用DrawText()方法新建图片
                Image imgWtrmrk = DrawText(watermarkText, font, Color.LightCoral, System.Drawing.Color.White, sheet.PageSetup.PageHeight, sheet.PageSetup.PageWidth);
                ////将页眉图片设置为左对齐
                //sheet.PageSetup.LeftHeaderImage = imgWtrmrk;
                //sheet.PageSetup.LeftHeader = "&G";
                ////水印只会在此种模式下显现
                //sheet.ViewMode = ViewMode.Layout;
                sheet.PageSetup.BackgoundImage = imgWtrmrk as Bitmap;
            }
            workbook.SaveToFile(fileName);
            return string.Empty;
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="text"></param>
        /// <param name="font"></param>
        /// <param name="textColor"></param>
        /// <param name="backColor"></param>
        /// <param name="height"></param>
        /// <param name="width"></param>
        /// <returns></returns>
        private static Image DrawText(String text, System.Drawing.Font font, Color textColor, Color backColor, double height, double width)
        {
            //创建一个指定宽度和高度的位图图像
            Image img = new Bitmap((int)width, (int)height);
            Graphics drawing = Graphics.FromImage(img);
            //获取文本大小
            SizeF textSize = drawing.MeasureString(text, font);
            //旋转图片
            drawing.TranslateTransform(((int)width - textSize.Width) / 2, ((int)height - textSize.Height) / 2);
            drawing.RotateTransform(-45);
            drawing.TranslateTransform(-((int)width - textSize.Width) / 2, -((int)height - textSize.Height) / 2);
            //绘制背景
            drawing.Clear(backColor);
            //创建文本刷
            Brush textBrush = new SolidBrush(textColor);
            drawing.DrawString(text, font, textBrush, ((int)width - textSize.Width) / 2, ((int)height - textSize.Height) / 2);
            drawing.Save();
            return img;
        }
    }

    /// <summary>
    /// 签章参数
    /// </summary>
    public class PdfSignatureInfo
    {
        public PdfSignatureInfo()
        {

        }

        /// <summary>
        ///
        /// </summary>
        public string PdfCertificatePath { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string PdfCertificatePathPwd { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string PdfSignatureName { get; set; }

        /// <summary>
        ///
        /// </summary>
        public bool Certificated { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string ContactInfo { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string ContactInfoLabel { get; set; }

        /// <summary>
        ///
        /// </summary>
        public DateTime Date { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string DateLabel { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string DigitalSigner { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string DigitalSignerLable { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string DistinguishedName { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string DistinguishedNameLabel { get; set; }

        /// <summary>
        ///
        /// </summary>
        public bool IsConfiguerGraphicFilledBounds { get; set; }

        /// <summary>
        ///
        /// </summary>
        public bool IsTag { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string LocationInfo { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string LocationInfoLabel { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string Name { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string NameLabel { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string Reason { get; set; }

        /// <summary>
        ///
        /// </summary>
        public string ReasonLabel { get; set; }

        /// <summary>
        ///
        /// </summary>
        public GraphicMode GraphicsMode { get; set; }

        /// <summary>
        /// 签章图片地址
        /// </summary>
        public string SignImageSourcePath { get; set; }
    }

    /// <summary>
    ///
    /// </summary>
    public class SpireTextWaterMarkPara
    {
        /// <summary>
        ///
        /// </summary>
        public SpireTextWaterMarkPara()
        {
            PdfFontFamily = PdfFontFamily.Helvetica;
            PdfBrush = PdfBrushes.Blue;
            PdfTextAlignment = PdfTextAlignment.Center;
            Width = 0;
            Height = 0;
            XCoordinate = 0;
            YCoordinate = 0;
        }
        /// <summary>
        /// 水印文本
        /// </summary>
        public string WaterMarkText { get; set; }

        /// <summary>
        /// 透明度：0,10%，20%。。。。。90%，100%
        /// 0,0.1f,0.2f,。。。。。0.9f,1
        /// </summary>
        public float Alpha { get; set; }

        /// <summary>
        /// 旋转度数
        /// </summary>
        public float RotateDegree { get; set; }

        /// <summary>
        /// 字体样式
        /// </summary>
        public PdfFontFamily PdfFontFamily { get; set; }

        /// <summary>
        /// 字体大小
        /// </summary>
        public int FontSize { get; set; }

        /// <summary>
        /// 文本颜色，获取Aqua....画笔
        /// </summary>
        public PdfBrush PdfBrush { get; set; }

        /// <summary>
        /// 指定文本对齐到...
        /// </summary>
        public PdfTextAlignment PdfTextAlignment { get; set; }

        /// <summary>
        /// PDF的左边距离
        /// </summary>
        public float Width { get; set; }

        /// <summary>
        /// PDF的上边距离
        /// </summary>
        public float Height { get; set; }

        /// <summary>
        /// X坐标
        /// </summary>
        public float XCoordinate { get; set; }

        /// <summary>
        /// Y坐标
        /// </summary>
        public float YCoordinate { get; set; }
    }
}