andyshao / spire.pdf-for-.net

Spire.PDF for .NET is a professional PDF component applied to reate, write, edit, convert, print, handle and read PDF files on any .NET (C#, VB.NET, ASP.NET, .NET Core) applications.

Spire.PDF-for-.NET Library for Processing & Manipulating PDF Files

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Product Page 丨 Documentation 丨 Examples 丨 Forum 丨 Temporary License 丨 Customized Demo

Spire.PDF for .NET is a professional PDF API applied to creating, writing, editing, handling and reading PDF files without any external dependencies within .NET ( C#, VB.NET, ASP.NET, .NET Core, .NET 5.0, MonoAndroid and Xamarin.iOS ) application.

Using this .NET PDF library, you can implement rich capabilities to create PDF files from scratch or process existing PDF documents entirely through C#/VB.NET without installing Adobe Acrobat.

PDF Processing Features

• Generate/write/read/edit PDF documents.
• Supports 14 core, Type 1, True Type, Type 3, CJK & Unicode fonts.
• Extract images, text, pages and attachments from a PDF document with great speed and accuracy.
• Merge/split PDF documents and overlay documents.
• Convert HTML, XPS, Text and images to PDF and convert PDF to Excel,Word,images with efficient performance.
• Encrypt/Decrypt PDF, modify PDF passwords and create PDF digital signatures.
• Add and modify text/image bookmarks.
• Add text in Footer/Header.
• Export database table and pictures to PDF.
• Add Hyperlinks, work with actions/Javascript Action/Action Chain/Action Annotation.
• Add/remove/edit/fill fields.

Conversions

• Convert Webpage HTML, HTML ASPX to PDF
• Convert Image(Jpeg, Jpg, Png, Bmp, Tiff, Gif, EMF, Ico) to PDF
• Convert Text to PDF
• Convert PDF to HTML
• Convert XPS to PDF
• Convert PDF to SVG
• Convert PDF to XPS
• Convert PDF to Image
• Convert PDF to Word

Support Environment

• Fully written in C# and also support VB.NET.
• Applied on .NET Framework 2.0, 3.5, 3.5 Client Profile, 4.0, 4.0 Client Profile,4.5 and .NET Standard 2.0, .NET Core, .NET 5.0, MonoAndroid and Xamarin.Ios.
• Support Windows Forms and ASP.NET Applications.
• Support 32-bit OS
• Support 64-bit OS
• Support PDF Version 1.2, 1.3, 1.4, 1.5, 1.6 and 1.7.
• PDF API reference in HTML.
• Be Independent and do not need Adobe Acrobat or other third party PDF libraries.

Convert PDF to DOC in C#

            //Create a PDF document and load sample PDF.
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile("test.pdf");

            //Use SaveToFile method and set conversion target parameter as FileFormat.DOC.
            doc.SaveToFile("PDFtoDoc.doc", FileFormat.DOC);

Convert PDF to images in C#

            //Create a PDF document and load sample PDF.
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile("sample.pdf");

            Image bmp = doc.SaveAsImage(0);
            Image emf = doc.SaveAsImage(0, Spire.Pdf.Graphics.PdfImageType.Metafile);
            Image zoomImg = new Bitmap((int)(emf.Size.Width * 2), (int)(emf.Size.Height * 2));
            using (Graphics g = Graphics.FromImage(zoomImg))
            {
                g.ScaleTransform(2.0f, 2.0f);
                g.DrawImage(emf, new Rectangle(new Point(0, 0), emf.Size), new Rectangle(new Point(0, 0), emf.Size), GraphicsUnit.Pixel);
            }
            //Save as BMP
            bmp.Save("convertToBmp.bmp", ImageFormat.Bmp);
            System.Diagnostics.Process.Start("convertToBmp.bmp");

            //Save as EMF
            emf.Save("convertToEmf.png", ImageFormat.Png);
            System.Diagnostics.Process.Start("convertToEmf.png");

            //SAVE as ZoomImg
            zoomImg.Save("convertToZoom.png", ImageFormat.Png);
            System.Diagnostics.Process.Start("convertToZoom.png");

Convert HTML to PDF in C#

            //Create a pdf document.
            PdfDocument doc = new PdfDocument();

            PdfPageSettings setting = new PdfPageSettings();

            setting.Size = new SizeF(1000,1000);
            setting.Margins = new Spire.Pdf.Graphics.PdfMargins(20);

            PdfHtmlLayoutFormat htmlLayoutFormat = new PdfHtmlLayoutFormat();
            htmlLayoutFormat.IsWaiting = true;
            
            String url = "https://www.wikipedia.org/";
         
            Thread thread = new Thread(() =>
            { doc.LoadFromHTML(url, false, false, false, setting,htmlLayoutFormat); });
            thread.SetApartmentState(ApartmentState.STA);
            thread.Start();
            thread.Join();

            //Save pdf file.
            doc.SaveToFile("output-wiki.pdf");

Product Page 丨 Documentation 丨 Examples 丨 Forum 丨 Temporary License 丨 Customized Demo