标签:string int endNumber pagesNumber itextsharp startNumber pd new logo
/// <summary> /// 添加图片、logo等 /// 引用组件itextsharp /// </summary> /// <param name="inputfilepath"></param> /// <param name="outputfiledir"></param> /// <param name="imgpath"></param> /// <param name="x"></param> /// <param name="y"></param> /// <param name="startNumber"></param> /// <param name="endNumber"></param> /// <returns></returns> private string AddPdfImage(string inputfilepath, string outputfiledir, string imgpath, int x, int y, int startNumber, int endNumber, int percent) { try { using (PdfReader pdfReader = new PdfReader(inputfilepath)) { var pagesNumber = pdfReader.NumberOfPages; if (startNumber < pagesNumber && endNumber > pagesNumber) { endNumber = pagesNumber; } if (startNumber > pagesNumber || endNumber > pagesNumber) { throw new IndexOutOfRangeException("页码超出范围!"); } var filename = Path.GetFileNameWithoutExtension(inputfilepath) + "_" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".pdf"; var outputfilepathtemp = Path.Combine(outputfiledir, filename); using (PdfStamper pdfStamper = new PdfStamper(pdfReader, new FileStream(outputfilepathtemp, FileMode.Create))) { using (Stream inputImageStream = new FileStream(imgpath, FileMode.Open, FileAccess.Read, FileShare.Read)) { iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(inputImageStream);//获取图片 image.ScalePercent(percent);//设置图片缩放比例 for (int i = startNumber; i <= endNumber; i++) { iTextSharp.text.Rectangle psize = pdfReader.GetPageSize(i); float width = psize.Width; float height = psize.Height; float absoluteX = width * x / 100 - image.ScaledWidth; float absoluteY = height * y / 100 - image.ScaledHeight; if (absoluteX < 0) { absoluteX = 0; } if (absoluteY < 0) { absoluteY = 0; } image.SetAbsolutePosition(absoluteX, height - image.ScaledHeight - absoluteY);//设置图片的绝对位置 var pdfContentByte = pdfStamper.GetOverContent(i);//获取内容 pdfContentByte.AddImage(image); } } } return outputfilepathtemp; } } catch (Exception ex) { throw ex; } }
标签:string,int,endNumber,pagesNumber,itextsharp,startNumber,pd,new,logo 来源: https://www.cnblogs.com/njcxwz/p/15637221.html
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