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

Python: Split a PDF File into Multiple PDFs 2023-09-28
Python: Set or Remove Word Document Editing Restrictions 2023-09-28
Python: Convert Images to PDF 2023-09-27
Python: Convert PowerPoint to Images (PNG, JPG, BMP, SVG) 2023-09-27

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.Office 8.9.3 is released

2023-09-28
E-iceblue will be on Mid-Autumn Festival and National Day Holiday from 29/09/2023 to 06/10/2023

2023-09-28
Spire.Presentation for Python 8.9.0 supports setting custom DPI when saving shapes as images

2023-09-27
Spire.Presentation 8.9.4 supports setting the time for automatic slide switching

2023-09-27

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

Our group was looking for a cost-effective way to add reliable barcode generation to our web application. We tried some free ones that we found to be inaccurate and put our customers at risk.
Spire.Barcode for .Net has proven to pass our test cases as well as come with a free license. Couldn't be happier!

Eric BrownChildrenSAL

Our team was in need of a .NET utility that would allow us to generate barcode images used for emailing receipts.
Spire.Barcode not only provided the ability to generate barcodes and save them as images, but offers a range of customization that suited our needs perfectly.
The fact that these services are completely free is almost too good to be true!

Kevin KelleyClarity Connect

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...