A professional Word .NET library designed to create, read, write, convert and print Word document files in any .NET ( C#, VB.NET, ASP.NET, .NET Core, Xamarin ) application with fast and high quality performance.

A professional Excel .NET library that can be used to create, read, write, convert and print Excel files in any type of .NET ( C#, VB.NET, ASP.NET, .NET Core, Xamarin ) application.

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A professional PDF library applied to creating, writing, editing, handling and reading PDF files without any external dependencies within .NET ( C#, VB.NET, ASP.NET, .NET Core, Xamarin ) application.

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A professional PowerPoint® compatible library that enables developers to create, read, write, modify, convert and print PowerPoint documents in any .NET ( C#, VB.NET, ASP.NET, .NET Core, Xamarin ) application.

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A professional Email library specially designed for developers to create, read and manipulate emails in any .NET ( C#, VB.NET, ASP.NET, .Net Core, .Net Standard, MonoAndroid, Xamarin iOS ) application.

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A professional barcode library specially designed for .NET developers ( C#, VB.NET, ASP.NET, .NET Core, .Net Standard, MonoAndroid, Xamarin.iOS ) to generate, read and scan 1D & 2D barcodes.

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Tutorials

C++: Insert Images into Word Documents 2023-03-24
C++: Convert PowerPoint Presentations to Images (JPG, PNG, SVG) 2023-03-23
How to use Spire.OCR in .NET Framework Applications 2023-03-22
C++: Add or Delete Pages in PDF 2023-03-22

Hot Items

Spire.Cloud.Office

A powerful online Office viewer and editor developed by E-ICEBLUE. Integrate it into your web server or cloud application, and you'll be able to create, edit, convert, print, view and save MS Word and MS Excel compatible documents in a HTML5 browser on Windows, Linux and Mac.

Working together with Spire.Office for .NET, you can manipulate Word and Excel documents from the server-end using C# or VB.NET code, and then send the results to a browser for further editing in a visual manner...

News & Releases

Spire.Presentation for Java 8.3.2 supports DPT and DPS file formats

2023-03-23
Spire.XLS for Java 13.3.6 support converting Excel to standalone HTML files

2023-03-22
Spire.Email 6.3.2 fixes the issue that the date of emails read is incorrect

2023-03-22
Spire.PDF for Java 9.3.6 support scaling when printing PDF documents

2023-03-21

Believe The Users

It May Help You to Make the Right Decision.

Colonial has been a satisfied customer of your Spire.PDF dll library for years; having purchased a license in February of 2015.
We use it in a variety of C# applications, both in website Save-As and automated transformative file creation application situations.

Miles ThorntonColonial

Both Spire.Doc and Spire.XLS are great!
They helped me write a tool that I use in my work for the automated execution of documents. Thank you very much!
I am very happy with these libraries and I will definitely recommend them to my friends.
Best regards, Jacek from Poland.

Jacek KurowskiO2

I'm waiting for a confirmation from my superiors to buy the license. But we already finished the tests with the Spire.Doc, and it works perfectly!
We are very excited to start to work with it, because it fixes a lot of bugs that we have using the Microsoft.Office.Interop's dll.
I guess that I'll probably have the confirmation in the begin of the next year.

Jorge OliveiraStar Net Pharma

Deloitte Consulting LLP purchased Spire.Office for Java to split Word documents by page breaks, merge PDF files, and implement the conversions from PDF to HTML, PDF to Word...

Intel Corporation purchased Spire.PDF to extract images from PDF files and store them in SQL database, and find & replace hyperlinks in a PDF file. They also used Spire.PDFViewer component...

The United Nations purchased Spire.Office for .NET to realize the functions of converting Word/Excel to PDF, converting HTML to Word, adding tables to PDF, and inserting HTML...