ByteScout PDF Extractor SDK - VB.NET - PDF Invoice Parsing - ByteScout

ByteScout PDF Extractor SDK – VB.NET – PDF Invoice Parsing

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PDF invoice parsing in VB.NET and ByteScout PDF Extractor SDK

How to use ByteScout PDF Extractor SDK for PDF invoice parsing in VB.NET

The coding tutorials are designed to help you test the features without need to write your own code. PDF invoice parsing in VB.NET can be implemented with ByteScout PDF Extractor SDK. ByteScout PDF Extractor SDK is the SDK is designed to help developers with pdf tables and pdf data extraction from unstructured documents like pdf, tiff, scans, images, scanned and electronic forms. The library is powered by OCR, computer vision and AI to provide unique functionality like table detection, automatic table structure extraction, data restoration, data restructuring and reconstruction. Supports PDF, TIFF, PNG, JPG images as input and can output CSV, XML, JSON formatted data. Includes full set of utilities like pdf splitter, pdf merger, searchable pdf maker and other utilities.

Fast application programming interfaces of ByteScout PDF Extractor SDK for VB.NET plus the instruction and the VB.NET code below will help you quickly learn PDF invoice parsing. VB.NET sample code is all you need: copy and paste the code to your VB.NET application’s code editor, add a reference to ByteScout PDF Extractor SDK (if you haven’t added yet) and you are ready to go! Use of ByteScout PDF Extractor SDK in VB.NET is also explained in the documentation included along with the product.

ByteScout PDF Extractor SDK is available as free trial. You may get it from our website along with all other source code samples for VB.NET applications.

Try ByteScout PDF Extractor SDK today:  60 Day Free Trial (on-premise) or  Web API (on-demand version)

Module1.vb
      
Imports System.Drawing Imports Bytescout.PDFExtractor Module Module1 Sub Main() ' Create TextExtractor instance Dim textExtractor = New TextExtractor("demo", "demo") textExtractor.WordMatchingMode = WordMatchingMode.ExactMatch ' Set exact search (default is SmartSearch that works like in Adobe Reader) ' Create XMLExtractor instance Dim xmlExtractor = New XMLExtractor("demo", "demo") ' Load document textExtractor.LoadDocumentFromFile("Invoice.pdf") xmlExtractor.LoadDocumentFromFile("Invoice.pdf") ' Results Dim invoiceNo = String.Empty Dim invoiceDate = String.Empty Dim total = String.Empty Dim tableData = String.Empty ' Iterate pages For i As Integer = 0 To textExtractor.GetPageCount() - 1 Dim pageRectangle = textExtractor.GetPageRectangle(i) Dim tableRect = New RectangleF(0, 0, pageRectangle.Width, 0) ' Search for "Invoice No." If textExtractor.Find(i, "Invoice No.", False) Then ' Get the found text rectangle Dim 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() End If ' Search for "Invoice Date" and extract text at right If textExtractor.Find(i, "Invoice Date", False) Then Dim textRect = textExtractor.FoundText.Bounds textRect.X = textRect.Right textRect.Width = pageRectangle.Right - textRect.Left textExtractor.SetExtractionArea(textRect) invoiceDate = textExtractor.GetTextFromPage(i).Trim() End If ' Search for "Quantity" keyword to detect the top of the tabular data rectangle If textExtractor.Find(i, "Quantity", False) Then ' Keep the top table coordinate tableRect.Y = textExtractor.FoundText.Bounds.Top ' use textRect.Bottom if you want to skip column headers End If ' Search and extract "TOTAL" (it will be also the bottom of tabular data rectangle) If textExtractor.Find(i, "TOTAL", True) Then ' case sensitive! Dim 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 End If ' Extract tabular data using XMLExtractor If tableRect.Height > 0 Then xmlExtractor.SetExtractionArea(tableRect) tableData = xmlExtractor.GetXMLFromPage(i) End If Next ' Display extracted data Console.WriteLine("Invoice No.: " + invoiceNo) Console.WriteLine("Invoice Date: " + invoiceDate) Console.WriteLine("TOTAL: " + total) Console.WriteLine("Table Data: ") Console.WriteLine(tableData) ' Cleanup textExtractor.Dispose() xmlExtractor.Dispose() Console.WriteLine() Console.WriteLine("Press any key...") Console.ReadKey() End Sub End Module

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