FreeSpire.PDF 8.6.0

.NET 6.0 .NET Core 2.0 .NET Framework 4.0
dotnet add package FreeSpire.PDF --version 8.6.0
NuGet\Install-Package FreeSpire.PDF -Version 8.6.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="FreeSpire.PDF" Version="8.6.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FreeSpire.PDF --version 8.6.0
#r "nuget: FreeSpire.PDF, 8.6.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install FreeSpire.PDF as a Cake Addin
#addin nuget:?package=FreeSpire.PDF&version=8.6.0

// Install FreeSpire.PDF as a Cake Tool
#tool nuget:?package=FreeSpire.PDF&version=8.6.0

.NET Library for Processing & Manipulating PDF Files


Product PageDocumentationExamplesForumTemporary LicenseCustomized Demo

Free Spire.PDF for .NET is a Community Edition of the Spire.PDF for .NET, which is a totally free PDF API for commercial and personal use.

As a standalone .NET library, Free Spire.PDF for .NET enables developers to create, write, edit, convert, print, handle and read PDF files on any .NET( C#, VB.NET, ASP.NET, .NET Core) applications.

PDF Processing Features.


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();

            //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();

            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);

            //Save as EMF
            emf.Save("convertToEmf.png", ImageFormat.Png);

            //Save as ZoomImg
            zoomImg.Save("convertToZoom.png", ImageFormat.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 = "";
            Thread thread = new Thread(() =>
            { doc.LoadFromHTML(url, false, false, false, setting,htmlLayoutFormat); });

            //Save pdf file.

Product PageDocumentationExamplesForumTemporary LicenseCustomized Demo

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed. 
.NET Core netcoreapp2.0 is compatible.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Framework net40 is compatible.  net403 was computed.  net45 was computed.  net451 was computed.  net452 was computed.  net46 was computed.  net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid is compatible. 
Xamarin.iOS xamarinios is compatible. 
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (11)

Showing the top 5 NuGet packages that depend on FreeSpire.PDF:

Package Downloads

Reinvent Utils




Package Description


Package Description


Fill text, image, u3d into acro form in pdf

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
8.6.0 164,781 7/19/2022
8.2.0 148,962 2/9/2022
7.8.9 274,590 8/24/2021
7.2.0 228,676 2/8/2021
6.10.6 84,639 10/21/2020
6.2.0 277,431 2/14/2020
5.10.0 138,186 10/15/2019
5.4.0 123,602 4/23/2019
5.1.0 79,586 1/23/2019
4.3.1 57,452 6/15/2018
3.2.0 213,654 1/14/2015
3.0.0 8,933 5/13/2014
2.9.37 8,856 3/17/2014

Free version is limited to 10 pages of PDF. This limitation is enforced during loading and creating files. When converting PDF to Image, the first 3 pages of PDF files will be converted to Image format successfully.