Online Tutorials
Online tutorials for .NET barcode scanning from images, .NET barcode generation, .NET PDF editing & modification, .NET PDF to image conversion, .NET PDF text extraction & PDF to text conversion, .NET PDF chart creating, .NET PDF barcode generation, .NET Excel modification, and .NET image text extraction/OCR.

Or you may directly refer to the demo project in each trial package.

How to Scan Barcode in .NET

How to Create Barcode in .NET

Online Tutorial

Online Tutorial

Click the button below to see detailed online guide for how to read and recognize 1D & 2D Barcodes in .NET Applications.
Click the button below to see detailed online guide for how to draw and create 1D & 2D Barcodes in .NET Applications.
C# Sample Code
VB Sample Code
C# Sample Code
VB Sample Code

How to Process & Edit PDF in .NET

How to Convert PDF to Image in .NET

Online Tutorial

Online Tutorial

Use .NET PDF library to load, read, modify, edit, annotate, extract, and protect PDF document for .NET applications development.
Convert PDF document to hight quality image files for .NET WinForms and ASP.NET web applications.
C# Sample Code
VB Sample Code
C# Sample Code
VB Sample Code

How to Convert PDF to Text in .NET

How to Create Chart on PDF in .NET

Online Tutorial

Online Tutorial

Show you how to make and create charts on PDF document page in .NET projects. Various MS chart graphs are supported.
Convert PDF document to text files for .NET WinForms and ASP.NET web Applications.
C# Sample Code
VB Sample Code
C# Sample Code
VB Sample Code

How to Modify & Edit Excel in .NET

How to Draw Barcode on PDF in .NET

Online Tutorial

Online Tutorial

Integrate .NET Excel library to .NET application development. Easy to create, read, write, and edit Excel spreadsheet. 
Illustrates how to create high print quality linear and 2d barcodes and draw them on PDF doucment page.
C# Sample Code
VB Sample Code
C# Sample Code
VB Sample Code

How to Extract Image Text in .NET

Online Tutorial

Use OCR technology to recognize and extract text from common image files like JPG, JPEG, TIF, TIFF, PNG, BMP & GIF.
Zonal OCR
OCR Lanuages
   Things You Should Know
1. All trials are used for evaluation purpose only. Otherwise, a product license is requested for commercial usage.
2. Trial versions of all our SDKs have no time limitation, but limited by:
* For .NET PDF Library, .NET PDF to Image Converter, .NET PDF Barcode Generator and .NET Barcode Generator SDKs, a watermark will be randomly shown on the PDF (page) and (barcode) image.
* For .NET Barcode Scanner SDK, the first data value of each barcode will be decoded as a question mark (?).
* For .NET PDF to Text Converter SDK, only extract text from the first five PDF pages or convert the pages to txt file.

* For .NET Excel SDK, only modify and edit the first 200 rows of Excel spreadsheet.
* For .NET OCR SDK, the first character of text extracted from image will be recognized as "CnetSDK*".

  
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