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ByteScout PDF Suite – C# – Parse Invoice

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How to parse invoice in C# using ByteScout PDF Suite

Step-by-step tutorial on how to parse invoice in C#

Parse invoice is simple to apply in C# if you use these source codes below. ByteScout PDF Suite: the bundle that provides six different SDK libraries to work with PDF from generating rich PDF reports to extracting data from PDF documents and converting them to HTML. This bundle includes PDF (Generator) SDK, PDF Renderer SDK, PDF Extractor SDK, PDF to HTML SDK, PDF Viewer SDK and PDF Generator SDK for Javascript. It can parse invoice in C#.

This prolific sample source code in C# for ByteScout PDF Suite contains various functions and other necessary options you should do calling the API to parse invoice. Simply copy and paste in your C# project or application you and then run your app! Complete and detailed tutorials and documentation are available along with installed ByteScout PDF Suite if you’d like to learn more about the topic and the details of the API.

You can download free trial version of ByteScout PDF Suite from our website to see and try many others source code samples for C#.

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Program.cs
      
using System; using System.Drawing; using Bytescout.PDFExtractor; namespace InvoiceParsing { /// <summary> /// This example demonstrates parsing and data extraction from typical invoice. /// </summary> class Program { static void Main(string[] args) { // Create TextExtractor instance TextExtractor textExtractor = new TextExtractor("demo", "demo"); textExtractor.WordMatchingMode = WordMatchingMode.ExactMatch; // Set exact search (default is SmartSearch that works like in Adobe Reader) // Create XMLExtractor instance XMLExtractor xmlExtractor = new XMLExtractor("demo", "demo"); // Load document textExtractor.LoadDocumentFromFile("Invoice.pdf"); xmlExtractor.LoadDocumentFromFile("Invoice.pdf"); // Results string invoiceNo = string.Empty; string invoiceDate = string.Empty; string total = string.Empty; string tableData = string.Empty; // Iterate pages for (int i = 0; i < textExtractor.GetPageCount(); i++) { RectangleF pageRectangle = textExtractor.GetPageRectangle(i); RectangleF tableRect = new RectangleF(0, 0, pageRectangle.Width, 0); // Search for "Invoice No." if (textExtractor.Find(i, "Invoice No.", false)) { // Get the found text rectangle RectangleF textRect = textExtractor.FoundText.Bounds; // Assume the text at right is the invoice number. // Shift the rectangle to the right: textRect.X = textRect.Right; textRect.Width = pageRectangle.Right - textRect.Left; // Set the extraction region and extract the text textExtractor.SetExtractionArea(textRect); invoiceNo = textExtractor.GetTextFromPage(i).Trim(); } // Search for "Invoice Date" and extract text at right if (textExtractor.Find(i, "Invoice Date", false)) { RectangleF textRect = textExtractor.FoundText.Bounds; textRect.X = textRect.Right; textRect.Width = pageRectangle.Right - textRect.Left; textExtractor.SetExtractionArea(textRect); invoiceDate = textExtractor.GetTextFromPage(i).Trim(); } // Search for "Quantity" keyword to detect the top of the tabular data rectangle if (textExtractor.Find(i, "Quantity", false)) { // Keep the top table coordinate tableRect.Y = textExtractor.FoundText.Bounds.Top; // use textRect.Bottom if you want to skip column headers } // Search for "TOTAL" (it will be also the bottom of tabular data rectangle) if (textExtractor.Find(i, "TOTAL", true /* case sensitive! */)) { RectangleF textRect = textExtractor.FoundText.Bounds; textRect.X = textRect.Right; textRect.Width = pageRectangle.Right - textRect.Left; textExtractor.SetExtractionArea(textRect); total = textExtractor.GetTextFromPage(i).Trim(); // Calculate the table height tableRect.Height = textRect.Top - tableRect.Top; } // Extract tabular data using XMLExtractor if (tableRect.Height > 0) { xmlExtractor.SetExtractionArea(tableRect); tableData = xmlExtractor.GetXMLFromPage(i); } } // Display extracted data Console.WriteLine("Invoice No.: " + invoiceNo); Console.WriteLine("Invoice Date: " + invoiceDate); Console.WriteLine("TOTAL: " + total); Console.WriteLine("Table Data: "); Console.WriteLine(tableData); Console.WriteLine("Press any key..."); Console.ReadKey(); } } }

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