Tutorials

Python: Find and Highlight Text in PDF 2023-11-20
Python: Apply Different Fonts in PDF 2023-11-17
Python: Convert HTML to Word 2023-11-17
Python: Add Hyperlinks to PowerPoint Presentations 2023-11-16

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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...

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YOUR OFFICE DEVELOPMENT MASTER

Over 1,000,000 Developers Are Already Using Our Libraries To Create Their Amazing Applications.

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Spire.Doc for .NET

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.

Spire.XLS for .NET

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.

Spire.PDF for .NET

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.

Spire.Presentation for .NET

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.

Spire.Email for .NET

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.

Spire.Barcode for .NET

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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10M+

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20K+

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BELIEVE THE USERS

It May Help You to Make the Right Decision

Thank you so much for your excellent support and also a thanks to the development team which does great work too. I have now received support for Spire.PDF a couple of times. And it was always resolved quickly and perfectly even though I never proved we own a license...

Rico Scheller SIEMENS
Your support was perhaps the best software support I have ever experienced. I have been writing software for several decades and have worked with many 'support' teams and, no kidding, none of them can compete with you. I am contracted to write software to a large 50,000 employee company...

Donald Young L3Harris Technologies
We are currently using XXX and we want to switch entirely to your product Spire.PDF, because you offer some nice features (like merging a pdf on top of another pdf).

Paul Ootjers Nieuws van de Bouw
Our customers requested barcode support. We added barcode scanning, but we also needed to create barcodes. Because we already used Free Spire.PDF, we had a look at Free Spire.Barcode and immediately were very happy with it...

Inge Ruppio Stahl Wille
We are looking for a .NET assembly to create barcodes. It is important that different code types can be created reliably. Scalability is very important to enable machine scanning. Spire.Barcode fully meets our requirements and is also very easy to implement.

Andreas Maronde Wein und Vinos GmbH

TYPICAL USE CASES

The Best Application Experiences Are Built Whith E-ICEBLUE

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...