Aspose.pdf无水印版下载(10.1 .Net,老版本亲测可用 )

C#版本的Aspose.Pdf 资源太难找了,尤其是没有水印的,Aspose.Pdf无水印版下载(10.1),尤其是你在某DN网站上下载的资源基本上测试后都是有水印的,或者就是报强签名的问题,花费了很多积分(这些积分可是实打实的银子啊)下载下来不能使用,想用板砖拍它心都有了。

C#版本的Aspose.Pdf 资源太难找了,尤其是没有水印的,Aspose.Pdf无水印版下载(10.1),尤其是你在某DN网站上下载的资源基本上测试后都是有水印的,或者就是报强签名的问题,花费了很多积分(这些积分可是实打实的银子啊)下载下来不能使用,想用板砖拍它心都有了。

Aspose.pdf无水印版下载(10.1 .Net,老版本亲测可用 )
Aspose.pdf无水印版下载

Aspose.Pdf无水印版下载

这玩意儿你不花钱的话,很难找到最新的无水印版,网上好多打着最新版本的,要么下载不成功,要么不可用,一是不想注册它们网站的用户,二是不想花钱,因此这儿就免费提供了,想下就下呗,你懂的。

下载地址:

Aspose.pdf 无水印版 (下载13)
C#异步编程最佳实践
C#异步编程最佳实践

下面的代码收录自网上,并没有完整测试,想来直接用问题不大。

C# PDF转图片

网页上要上传一些证件照,但是手头给我的的证件是pdf,不多几十张,由于需要一页显示,所以需要把他们转成图片。

百度在线pdf转jpg,好家伙,一大堆积网页,随便点一个开搞,一张,有点慢,算了等等,转换完成点下载,WHT? 12kb,好几分钟后,下载完成,然后上传第二个,你妹,需要会员,好吧注册个,终于转换了第二个,准备第三个,你妹,又不够了,要订阅,有着个订阅的钱,我还不如开个wps会员呢,连续试了几个网页,全是一个尿性,下载慢,数量少,不能批量,于是突然想到以前用aspose.word把word 转pdf,于是赶紧试了下,可以实现。

            Document pdfDocument = new Document(@"D:\pdfdir\jhrs.com.pdf");
            for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
            {
                using (FileStream imageStream = new FileStream($"jhrs.com_{i}.png", FileMode.Create))
                {
                    Resolution resolution = new Resolution(300);
                    PngDevice pngDevice = new PngDevice(resolution);
                    pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
                    imageStream.Close();
                }
            }

Aspose.pdf无水印版下载

Aspose.pdf添加文字水印

        /// <summary>
        /// pdf添加文字水印(自定义水印行数和列数)
        /// </summary>
        /// <param name="pdfStream">pdf文件流</param>
        /// <param name="watermarkText">水印文字</param>
        /// <param name="fontSize">文字大小</param>
        /// <param name="fontColor">文字颜色</param>
        /// <param name="typeface">字体:(中文水印请自行查找相应字体的英文名称,如:宋体(SimSun),黑体(SimHei),仿宋(FangSong),微软雅黑(Microsoft YaHei)等等...)</param>
        /// <param name="rotation">倾斜角度</param>
        /// <param name="opacity">不透明度(值为:0-1)</param>
        /// <param name="watermarkRowNum">水印行数</param>
        /// <param name="watermarkColumnNum">水印列数</param>
        /// <returns></returns>
        public Stream AddTextWatermarkCustom(Stream pdfStream, string watermarkText, float fontSize, Aspose.Pdf.Color fontColor, string typeface, double rotation = 0, double opacity = 0, int watermarkRowNum = 1, int watermarkColumnNum = 1)
        {
            try
            {
                /*计算倾斜高度-start*/
                var angle = Math.Abs(rotation);
                var width = watermarkText.Length * fontSize;
                var radian = 2 * Math.PI / 360 * angle;
                var top = Math.Sin(radian) * width;
                /*计算倾斜高度-end*/
                Document document = new Document(pdfStream);
                for (int i = 1; i <= document.Pages.Count; i++)
                {
                    var pageWidth = document.Pages[i].GetPageRect(false).Width;
                    var pageHeight = document.Pages[i].GetPageRect(false).Height;
                    WatermarkArtifact artifact = new WatermarkArtifact();
                    artifact.SetTextAndState(watermarkText, new TextState
                    {
                        FontSize = fontSize,
                        ForegroundColor = fontColor,
                        Font = FontRepository.FindFont(typeface),
                    });
                    artifact.Rotation = rotation;
                    artifact.Opacity = opacity;
                    artifact.IsBackground = false;
                    if (watermarkRowNum == 1 && watermarkColumnNum == 1)
                    {
                        artifact.ArtifactHorizontalAlignment = HorizontalAlignment.Center;
                        artifact.ArtifactVerticalAlignment = VerticalAlignment.Center;
                        document.Pages[i].Artifacts.Add(artifact);
                    }
                    else
                    {
                        artifact.ArtifactHorizontalAlignment = HorizontalAlignment.Left;
                        artifact.ArtifactVerticalAlignment = VerticalAlignment.Top;
                        for (int j = 1; j <= watermarkColumnNum; j++)
                        {
                            artifact.LeftMargin = (j - 1) * (pageWidth / watermarkColumnNum) + fontSize;
                            for (int z = 1; z <= watermarkRowNum; z++)
                            {
                                artifact.TopMargin = (z - 1) * (pageHeight / watermarkRowNum) + top;
                                document.Pages[i].Artifacts.Add(artifact);
                            }
                        }
                    }
                }
                Stream outStream = new MemoryStream();
                document.Save(outStream, SaveFormat.Pdf);
                outStream.Seek(0, SeekOrigin.Begin);
                return outStream;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        /// <summary>
        /// pdf添加文字水印(平铺)
        /// </summary>
        /// <param name="pdfStream">pdf文件流</param>
        /// <param name="watermarkText">水印文字</param>
        /// <param name="fontSize">文字大小</param>
        /// <param name="fontColor">文字颜色</param>
        /// <param name="typeface">字体:(中文水印请自行查找相应字体的英文名称,如:宋体(SimSun),黑体(SimHei),仿宋(FangSong),微软雅黑(Microsoft YaHei)等等...)</param>
        /// <param name="rotation">倾斜角度</param>
        /// <param name="opacity">不透明度(值为:0-1)</param>
        /// <param name="density">水印密度(值为0-1)</param>
        /// <returns></returns>
        public Stream AddTextWatermarkTile(Stream pdfStream, string watermarkText, float fontSize, Aspose.Pdf.Color fontColor, string typeface, double rotation = 0, double opacity = 0, double density = 1)
        {
            try
            {
                Document document = new Document(pdfStream);
                /*计算水印详细-start*/
                var angle = Math.Abs(rotation);
                var width = watermarkText.Length * fontSize;
                var radian = 2 * Math.PI / 360 * angle;
                var top = Math.Sin(radian) * width;
                var row = Math.Cos(radian) * width;
                var pageWidth = document.Pages[1].GetPageRect(false).Width;
                var pageHeight = document.Pages[1].GetPageRect(false).Height;
                int watermarkRowNum = (int)(pageHeight / top * density);
                int watermarkColumnNum = (int)(pageHeight / row * density);
                if (rotation == 0)
                {
                    watermarkRowNum = (int)(pageHeight / fontSize * density);
                    watermarkColumnNum = (int)(pageHeight / width * density);
                }

                /*计算水印详细-end*/
                for (int i = 1; i <= document.Pages.Count; i++)
                {

                    WatermarkArtifact artifact = new WatermarkArtifact();
                    artifact.SetTextAndState(watermarkText, new TextState
                    {
                        FontSize = fontSize,
                        ForegroundColor = fontColor,
                        Font = FontRepository.FindFont(typeface),
                    });
                    artifact.Rotation = rotation;
                    artifact.Opacity = opacity;
                    artifact.IsBackground = false;
                    artifact.ArtifactHorizontalAlignment = HorizontalAlignment.Left;
                    artifact.ArtifactVerticalAlignment = VerticalAlignment.Top;
                    for (int j = 1; j <= watermarkColumnNum; j++)
                    {
                        artifact.LeftMargin = (j - 1) * (pageWidth / watermarkColumnNum) + fontSize;
                        for (int z = 1; z <= watermarkRowNum; z++)
                        {
                            artifact.TopMargin = (z - 1) * (pageHeight / watermarkRowNum) + top;
                            document.Pages[i].Artifacts.Add(artifact);
                        }
                    }
                }
                Stream outStream = new MemoryStream();
                document.Save(outStream, SaveFormat.Pdf);
                outStream.Seek(0, SeekOrigin.Begin);
                return outStream;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

Aspose.pdf无水印版下载

调用代码部分代码:

Stream stream = File.OpenRead(@"C:\Users\HEDY\Desktop\Test\2.pdf");
var outStream = AddTextWatermarkCustom(stream, "测试水印文字", 32, Color.Blue, "SimSun", 45, 0.5, 6, 3);
var saveStream = new FileStream([email protected]"C:\Users\HEDY\Desktop\Test\1_{Guid.NewGuid()}.pdf", FileMode.Create);
outStream.CopyTo(saveStream);
outStream.Close();
saveStream.Close();

Aspose.pdf添加图片水印

        /// <summary>
        /// pdf添加图片水印(自定义水印行数和列数)
        /// </summary>
        /// <param name="pdfStream">pdf文件流</param>
        /// <param name="imgurl">水印文字</param>
        /// <param name="rotation">倾斜角度</param>
        /// <param name="opacity">不透明度(值为:0-1)</param>
        /// <param name="watermarkRowNum">水印行数</param>
        /// <param name="watermarkColumnNum">水印列数</param>
        /// <returns></returns>
        public Stream AddImgWatermarkCustom(Stream pdfStream, string imgPath, double rotation = 0, double opacity = 0, int watermarkRowNum = 1, int watermarkColumnNum = 1)
        {
            try
            {
                /*计算倾斜高度-start*/
                var angle = Math.Abs(rotation);
                var pic = new Bitmap(imgPath);
                var width = pic.Width;
                var radian = 2 * Math.PI / 360 * angle;
                var top = Math.Sin(radian) * width;
                /*计算倾斜高度-end*/
                Document document = new Document(pdfStream);
                for (int i = 1; i <= document.Pages.Count; i++)
                {
                    var pageWidth = document.Pages[i].GetPageRect(false).Width;
                    var pageHeight = document.Pages[i].GetPageRect(false).Height;
                    WatermarkArtifact artifact = new WatermarkArtifact();
                    artifact.SetImage(File.OpenRead(imgPath));
                    artifact.Rotation = rotation;
                    artifact.Opacity = opacity;
                    artifact.IsBackground = false;
                    if (watermarkRowNum == 1 && watermarkColumnNum == 1)
                    {
                        artifact.ArtifactHorizontalAlignment = HorizontalAlignment.Center;
                        artifact.ArtifactVerticalAlignment = VerticalAlignment.Center;
                        document.Pages[i].Artifacts.Add(artifact);
                    }
                    else
                    {
                        artifact.ArtifactHorizontalAlignment = HorizontalAlignment.Left;
                        artifact.ArtifactVerticalAlignment = VerticalAlignment.Top;
                        for (int j = 1; j <= watermarkColumnNum; j++)
                        {
                            artifact.LeftMargin = (j - 1) * (pageWidth / watermarkColumnNum) + pic.Height;
                            for (int z = 1; z <= watermarkRowNum; z++)
                            {
                                artifact.TopMargin = (z - 1) * (pageHeight / watermarkRowNum) + top;
                                document.Pages[i].Artifacts.Add(artifact);
                            }
                        }
                    }
                }
                Stream outStream = new MemoryStream();
                document.Save(outStream, SaveFormat.Pdf);
                outStream.Seek(0, SeekOrigin.Begin);
                return outStream;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        /// <summary>
        /// pdf添加图片水印(平铺)
        /// </summary>
        /// <param name="pdfStream">pdf文件流</param>
        /// <param name="watermarkText">水印文字</param>
        /// <param name="rotation">倾斜角度</param>
        /// <param name="opacity">不透明度(值为:0-1)</param>
        /// <param name="density">水印密度(值为0-1)</param>
        /// <returns></returns>
        public Stream AddImgWatermarkTile(Stream pdfStream, string imgPath, double rotation = 0, double opacity = 0, double density = 1)
        {
            try
            {
                Document document = new Document(pdfStream);
                /*计算水印详细-start*/
                var angle = Math.Abs(rotation);
                var pic = new Bitmap(imgPath);
                var width = pic.Width;
                var imgHeight = pic.Height;
                var radian = 2 * Math.PI / 360 * angle;
                var top = Math.Sin(radian) * width;
                var row = Math.Cos(radian) * width;
                var pageWidth = document.Pages[1].GetPageRect(false).Width;
                var pageHeight = document.Pages[1].GetPageRect(false).Height;
                int watermarkRowNum = (int)(pageHeight / top * density);
                int watermarkColumnNum = (int)(pageHeight / row * density);
                if (rotation == 0)
                {
                    watermarkRowNum = (int)(pageHeight / imgHeight * density);
                    watermarkColumnNum = (int)(pageHeight / width * density);
                }

                /*计算水印详细-end*/
                for (int i = 1; i <= document.Pages.Count; i++)
                {

                    WatermarkArtifact artifact = new WatermarkArtifact();
                    artifact.SetImage(File.OpenRead(imgPath));
                    artifact.Rotation = rotation;
                    artifact.Opacity = opacity;
                    artifact.IsBackground = false;
                    artifact.ArtifactHorizontalAlignment = HorizontalAlignment.Left;
                    artifact.ArtifactVerticalAlignment = VerticalAlignment.Top;
                    for (int j = 1; j <= watermarkColumnNum; j++)
                    {
                        artifact.LeftMargin = (j - 1) * (pageWidth / watermarkColumnNum) + imgHeight;
                        for (int z = 1; z <= watermarkRowNum; z++)
                        {
                            artifact.TopMargin = (z - 1) * (pageHeight / watermarkRowNum) + top;
                            document.Pages[i].Artifacts.Add(artifact);
                        }
                    }
                }
                Stream outStream = new MemoryStream();
                document.Save(outStream, SaveFormat.Pdf);
                outStream.Seek(0, SeekOrigin.Begin);
                return outStream;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

Aspose.pdf无水印版下载

调用代码部分代码:

Stream stream = File.OpenRead(@"C:\Users\HEDY\Desktop\Test\2.pdf");
            var outStream = AddImgWatermarkTile(stream, @"C:\Users\HEDY\Desktop\Test\123.jpg", 0, 0.5,0.5);
            var saveStream = new FileStream([email protected]"C:\Users\HEDY\Desktop\Test\1_{Guid.NewGuid().ToString("N")}.pdf", FileMode.Create);
            outStream.CopyTo(saveStream);
            outStream.Close();
            saveStream.Close();

Aspose.pdf无水印版下载

代码引用来源:https://www.cnblogs.com/Shi-zy/p/15494760.html,未经测试代码,留作备用而已。

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文章标题:Aspose.pdf无水印版下载(10.1 .Net,老版本亲测可用 )

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