# Spire.PDF-for-.NET

**Repository Path**: DXFB/Spire.PDF-for-.NET

## Basic Information

- **Project Name**: Spire.PDF-for-.NET
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-09-09
- **Last Updated**: 2026-09-09

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

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

------
[![Foo](https://i.imgur.com/bcklsSB.png)](https://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html)


[Product Page](https://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html) 丨 [Documentation](https://www.e-iceblue.com/Tutorials/Spire.PDF.html) 丨 [Examples](https://github.com/eiceblue/Spire.PDF-for-.NET) 丨 [Forum](https://www.e-iceblue.com/forum/spire-pdf-f7.html) 丨 [Temporary License](https://www.e-iceblue.com/TemLicense.html) 丨 [Customized Demo](https://www.e-iceblue.com/Misc/customized-demo.html)

[Spire.PDF for .NET](https://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html) 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](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-create-PDF-dynamically-and-send-it-to-client-browser-using-ASP.NET.html) from scratch or process existing PDF documents entirely through C#/VB.NET without installing Adobe Acrobat.

### PDF Processing Features

- [Generate](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-create-PDF-dynamically-and-send-it-to-client-browser-using-ASP.NET.html)/[write](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-Draw-Text-in-PDF-with-Different-Styles.html)/[read](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Read-PDF-Read-PDF-Images-and-Text-in-C-VB.NET.html)/edit PDF documents.
- Supports 14 core, Type 1, True Type, Type 3, CJK & Unicode fonts.
- [Extract images](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-Extract-Image-From-PDF-in-C.html), [text](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-Extract-Text-from-PDF-Document-with-C-/VB.NET.html), pages and [attachments](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Attachments/How-to-get-PDF-attachment-information-in-C.html) from a PDF document with great speed and accuracy.
- [Merge](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Document-Operation/Merge-Selected-Pages-from-Multiple-PDF-Files-into-One-in-C-VB.NET.html)/[split](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Document-Operation/Split-PDF-into-Multiple-PDFs-using-a-Range-of-Pages-in-C-VB.NET.html) PDF documents and overlay documents.
- Convert [HTML to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-HTML-to-PDF-Customize-HTML-to-PDF-Conversion-by-Yourself.html), [XPS to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Covert-XPS-Files-to-PDF-format-in-C.html), [Text to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-Text-to-PDF-with-C-VB.NET.html) and [images to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/C-/VB.NET-Convert-Image-to-PDF.html) to PDF and [convert PDF to Excel](https://www.e-iceblue.com/Tutorials/Spire.PDF/Program-Guide/Conversion/Convert-PDF-to-Excel-in-C-VB.NET.html), [convert PDF to Word](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Conversion/How-to-convert-PDF-to-Doc-in-C-VB.NET.html), [convert PDF to images](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-PDF-Page-to-Image-with-C-code.html) with efficient performance.
- [Encrypt/Decrypt PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Security/C-Encrypt-and-Decrypt-PDF-file.html), [modify PDF passwords](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Modify-Passwords-of-Encrypted-PDF-with-C-VB.NET.html) and [create PDF digital signatures](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/PDF-Protection-Create-Digital-Signature-in-PDF-with-C-VB.NET.html).
- [Add](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/PDF-Bookmark-Add-PDF-Bookmark-in-C-VB.NET.html) and [modify](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Bookmark/How-to-Modify-Bookmarks-in-Existing-PDF-in-C-VB.NET.html) text/image bookmarks.
- Add text in [Footer](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Header-and-Footer/Add-Footer-to-Existing-PDF-in-C-VB.NET.html)/[Header](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Header-and-Footer/Add-Header-to-Existing-PDF-in-C-VB.NET.html).
- Export database table and pictures to PDF.
- [Add Hyperlinks](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/PDF-Hyperlink-Insert-Hyperlink-in-PDF-with-C-VB.NET.html), work with [actions](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Attachments/Create-a-GoToE-Action-to-an-Embedded-PDF-File.html)/Javascript Action/[Action Chain](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/PDF-Action/How-to-Add-Action-Chain-to-PDF-in-C.html)/Action [Annotation](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Add-Annotation-to-PDF-File-in-C.html).
- [Add](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/C-/VB.NET-Create-FormField-in-PDF.html)/[remove](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/FormField/Remove/Delete-Form-Fields-from-PDF-in-C.html)/[edit](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/FormField/Set-Commit-selected-value-immediately-property-for-ComboBox-field-and-ListBox-field.html)/[fill](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/PDF-FormField/Fill-Form-Fields-in-PDF-File-with-C.html) fields.

### Conversions

- Convert [Webpage HTML to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-HTML-to-PDF-Customize-HTML-to-PDF-Conversion-by-Yourself.html), [HTML ASPX to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-HTML-to-PDF-Customize-HTML-to-PDF-Conversion-by-Yourself.html)
- Convert [Image to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/C-/VB.NET-Convert-Image-to-PDF.html)
- [Convert Text to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-Text-to-PDF-with-C-VB.NET.html)
- [Convert PDF to HTML](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Conversion/C-Convert-PDF-to-HTML.html)
- [Convert XPS to PDF](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Covert-XPS-Files-to-PDF-format-in-C.html)
- [Convert PDF to SVG](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Conversion/Convert-PDF-to-SVG-Scalable-Vector-Graphics-in-C-VB.NET.html)
- [Convert PDF to XPS](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-convert-PDF-to-XPS-in-C.html)
- [Convert PDF to Image](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-PDF-Page-to-Image-with-C-code.html)
- [Convert PDF to Word](https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Conversion/How-to-convert-PDF-to-Doc-in-C-VB.NET.html)
- [Convert PDF to Excel](https://www.e-iceblue.com/Tutorials/Spire.PDF/Program-Guide/Conversion/Convert-PDF-to-Excel-in-C-VB.NET.html)

### 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.](https://www.e-iceblue.com/Tutorials/API/Spire.PDF.html)
- Be Independent and do not need Adobe Acrobat or other third party PDF libraries.

### Convert PDF to DOC in C#

```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#

```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#

```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](https://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html) 丨 [Documentation](https://www.e-iceblue.com/Tutorials/Spire.PDF.html) 丨 [Examples](https://github.com/eiceblue/Spire.PDF-for-.NET) 丨 [Forum](https://www.e-iceblue.com/forum/spire-pdf-f7.html) 丨 [Temporary License](https://www.e-iceblue.com/TemLicense.html) 丨 [Customized Demo](https://www.e-iceblue.com/Misc/customized-demo.html)