ByteScout PDF Extractor SDK - C# - Find Invoice Total Amount in PDF with Regex - ByteScout

ByteScout PDF Extractor SDK – C# – Find Invoice Total Amount in PDF with Regex

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How to find invoice total amount in PDF with regex in C# using ByteScout PDF Extractor SDK

ByteScout PDF Extractor SDK is the SDK that helps developers to extract data from unstructured documents, pdf, images, scanned and electronic forms. Includes AI functions like automatic table detection, automatic table extraction and restructuring, text recognition and text restoration from pdf and scanned documents. Includes PDF to CSV, PDF to XML, PDF to JSON, PDF to searchable PDF functions as well as methods for low level data extraction.

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FindInvoiceTotalNumberWithRegex.csproj
      
<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" /> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProjectGuid>{99735776-2956-463D-9795-EBCE16928C30}</ProjectGuid> <OutputType>Exe</OutputType> <RootNamespace>FindInvoiceTotalNumberWithRegex</RootNamespace> <AssemblyName>FindInvoiceTotalNumberWithRegex</AssemblyName> <TargetFrameworkVersion>v2.0</TargetFrameworkVersion> <FileAlignment>512</FileAlignment> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <PlatformTarget>AnyCPU</PlatformTarget> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <Optimize>false</Optimize> <OutputPath>bin\Debug\</OutputPath> <DefineConstants>DEBUG;TRACE</DefineConstants> <ErrorReport>prompt</ErrorReport> <WarningLevel>4</WarningLevel> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <PlatformTarget>AnyCPU</PlatformTarget> <DebugType>pdbonly</DebugType> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DefineConstants>TRACE</DefineConstants> <ErrorReport>prompt</ErrorReport> <WarningLevel>4</WarningLevel> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.PDFExtractor, Version=9.1.0.3170, Culture=neutral, PublicKeyToken=f7dd1bd9d40a50eb, processorArchitecture=MSIL"> <SpecificVersion>False</SpecificVersion> <HintPath>c:\Program Files\Bytescout PDF Extractor SDK\net2.00\Bytescout.PDFExtractor.dll</HintPath> </Reference> <Reference Include="System" /> <Reference Include="System.Data" /> <Reference Include="System.Xml" /> </ItemGroup> <ItemGroup> <Compile Include="Program.cs" /> </ItemGroup> <ItemGroup> <None Include="SampleInvoice.pdf"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </None> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /> </Project>

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Program.cs
      
using Bytescout.PDFExtractor; using System; namespace FindInvoiceTotalNumberWithRegexp { // Note: if you are looking for a more higher level API to extract data from invoices, reports, statements // then please check Document Parser SDK and Web API at https://bytescout.com/products/developer/documentparsersdk/index.html // and https://pdf.co for secure and scalable web api class Program { static void Main(string[] args) { try { // Create Bytescout.PDFExtractor.TextExtractor instance using (TextExtractor extractor = new TextExtractor()) { extractor.RegistrationName = "demo"; extractor.RegistrationKey = "demo"; // Load sample PDF document extractor.LoadDocumentFromFile("SampleInvoice.pdf"); extractor.RegexSearch = true; // Enable the regular expressions int pageCount = extractor.GetPageCount(); // Search through pages for (int i = 0; i < pageCount; i++) { // Search total amount string regexPattern = @"(TOTAL: )[$]\d+"; // See the complete regular expressions reference at https://msdn.microsoft.com/en-us/library/az24scfc(v=vs.110).aspx // Search each page for the pattern if (extractor.Find(i, regexPattern, false)) { do { // Iterate through each element in the found text foreach (ISearchResultElement element in extractor.FoundText.Elements) { Console.WriteLine("Found Total Amount Number: " + element.Text.Replace("TOTAL:","").Trim()); } } while (extractor.FindNext()); } } } } catch (Exception ex) { Console.WriteLine("Error: " + ex.Message); } Console.WriteLine(); Console.WriteLine("Press enter key to continue..."); Console.ReadLine(); } } }

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ON-DEMAND REST WEB API

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ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit ByteScout PDF Extractor SDK Home Page

Explore ByteScout PDF Extractor SDK Documentation

Explore Samples

Sign Up for ByteScout PDF Extractor SDK Online Training

ON-DEMAND REST WEB API

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Explore Web API Docs

Explore Web API Samples

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