IronOCR 和 PDFTRON OCR 之间的比较

// Create a new PDF document
PDFDoc doc = new PDFDoc("sample.pdf");

// Convert PDF document to SVG
Convert.ToSvg(doc, "output.svg");

// Convert PDF document to XPS
Convert.ToXps("sample.pdf", "output.xps");

// Convert PDF document to multipage TIFF
Convert.TiffOutputOptions tiff_options = new Convert.TiffOutputOptions();
tiff_options.SetDPI(200);
tiff_options.SetDither(true);
tiff_options.SetMono(true);
Convert.ToTiff("sample.pdf", "output.tiff", tiff_options);

// Convert PDF to XOD
Convert.ToXod("sample.pdf", "output.xod");

// Convert PDF to HTML
Convert.ToHtml("sample.pdf", "output.html");

' Create a new PDF document
Dim doc As New PDFDoc("sample.pdf")

' Convert PDF document to SVG
Convert.ToSvg(doc, "output.svg")

' Convert PDF document to XPS
Convert.ToXps("sample.pdf", "output.xps")

' Convert PDF document to multipage TIFF
Dim tiff_options As New Convert.TiffOutputOptions()
tiff_options.SetDPI(200)
tiff_options.SetDither(True)
tiff_options.SetMono(True)
Convert.ToTiff("sample.pdf", "output.tiff", tiff_options)

' Convert PDF to XOD
Convert.ToXod("sample.pdf", "output.xod")

' Convert PDF to HTML
Convert.ToHtml("sample.pdf", "output.html")

// Create an IronTesseract object
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.EnglishBest;
Ocr.Configuration.TesseractVersion = TesseractVersion.Tesseract5;

using (var Input = new OcrInput())
{
    // Add an image for OCR
    Input.AddImage(@"3.png");
    // Read the text from the image
    var Result = Ocr.Read(Input);
    // Print the text to the console
    Console.WriteLine(Result.Text);
    Console.ReadKey();
}

' Create an IronTesseract object
Dim Ocr = New IronTesseract()
Ocr.Language = OcrLanguage.EnglishBest
Ocr.Configuration.TesseractVersion = TesseractVersion.Tesseract5

Using Input = New OcrInput()
	' Add an image for OCR
	Input.AddImage("3.png")
	' Read the text from the image
	Dim Result = Ocr.Read(Input)
	' Print the text to the console
	Console.WriteLine(Result.Text)
	Console.ReadKey()
End Using

// Copyright (c) 2001-2021 by PDFTron Systems Inc. All Rights Reserved.

using System;
using pdftron;
using pdftron.Common;
using pdftron.Filters;
using pdftron.SDF;
using pdftron.PDF;

// This code demonstrates conversion of documents to formats such as SVG, PDF, EMF, or XPS.

namespace ConvertTestCS
{
    class Testfile
    {
        public string inputFile, outputFile;
        public bool requiresWindowsPlatform;
        public Testfile(string inFile, string outFile, bool requiresWindowsPlatform_)
        {
            inputFile = inFile;
            outputFile = outFile;
            requiresWindowsPlatform = requiresWindowsPlatform_;
        }
    };

    class Class1
    {
        private static pdftron.PDFNetLoader pdfNetLoader = pdftron.PDFNetLoader.Instance();
        static Class1() {}

        // Relative paths to the input and output folders.
        const string inputPath = "../../../../TestFiles/";
        const string outputPath = "../../../../TestFiles/Output/";

        static bool ConvertSpecificFormats()
        {
            bool err = false;
            try
            {
                using (PDFDoc pdfdoc = new PDFDoc())
                {
                    // Convert from XPS to PDF
                    Console.WriteLine("Converting from XPS");
                    pdftron.PDF.Convert.FromXps(pdfdoc, inputPath + "simple-xps.xps");
                    pdfdoc.Save(outputPath + "xps2pdf v2.pdf", SDFDoc.SaveOptions.e_remove_unused);
                    Console.WriteLine("Saved xps2pdf v2.pdf");
                }
            }
            catch (PDFNetException e)
            {
                Console.WriteLine(e.Message);
                err = true;
            }

            // Other format conversions...

            return err;
        }

        static Boolean ConvertToPdfFromFile()
        {
            System.Collections.ArrayList testfiles = new System.Collections.ArrayList();
            testfiles.Add(new ConvertTestCS.Testfile("simple-word_2007.docx", "docx2pdf.pdf", false));
            // Add other test files...

            bool err = false;

            foreach (Testfile file in testfiles)
            {
                try
                {
                    using (pdftron.PDF.PDFDoc pdfdoc = new PDFDoc())
                    {
                        // Conditions and conversions...
                        pdftron.PDF.Convert.ToPdf(pdfdoc, inputPath + file.inputFile);
                        pdfdoc.Save(outputPath + file.outputFile, SDFDoc.SaveOptions.e_linearized);
                        Console.WriteLine("Converted file: " + file.inputFile);
                        Console.WriteLine("to: " + file.outputFile);
                    }
                }
                // Catch exceptions...
            }

            return err;
        }

        static void Main(string [] args)
        {
            PDFNet.Initialize(PDFTronLicense.Key);
            bool err = false;

            err = ConvertToPdfFromFile();
            if (err)
            {
                Console.WriteLine("ConvertFile failed");
            }
            else
            {
                Console.WriteLine("ConvertFile succeeded");
            }

            err = ConvertSpecificFormats();
            if (err)
            {
                Console.WriteLine("ConvertSpecificFormats failed");
            }
            else
            {
                Console.WriteLine("ConvertSpecificFormats succeeded");
            }

            // Finalization...
            PDFNet.Terminate();
            Console.WriteLine("Done.");
        }
    }
}

' Copyright (c) 2001-2021 by PDFTron Systems Inc. All Rights Reserved.

Imports System
Imports pdftron
Imports pdftron.Common
Imports pdftron.Filters
Imports pdftron.SDF
Imports pdftron.PDF

' This code demonstrates conversion of documents to formats such as SVG, PDF, EMF, or XPS.

Namespace ConvertTestCS
	Friend Class Testfile
		Public inputFile, outputFile As String
		Public requiresWindowsPlatform As Boolean
		Public Sub New(ByVal inFile As String, ByVal outFile As String, ByVal requiresWindowsPlatform_ As Boolean)
			inputFile = inFile
			outputFile = outFile
			requiresWindowsPlatform = requiresWindowsPlatform_
		End Sub
	End Class

	Friend Class Class1
		Private Shared pdfNetLoader As pdftron.PDFNetLoader = pdftron.PDFNetLoader.Instance()
		Shared Sub New()
		End Sub

		' Relative paths to the input and output folders.
		Private Const inputPath As String = "../../../../TestFiles/"
		Private Const outputPath As String = "../../../../TestFiles/Output/"

		Private Shared Function ConvertSpecificFormats() As Boolean
			Dim err As Boolean = False
			Try
				Using pdfdoc As New PDFDoc()
					' Convert from XPS to PDF
					Console.WriteLine("Converting from XPS")
					pdftron.PDF.Convert.FromXps(pdfdoc, inputPath & "simple-xps.xps")
					pdfdoc.Save(outputPath & "xps2pdf v2.pdf", SDFDoc.SaveOptions.e_remove_unused)
					Console.WriteLine("Saved xps2pdf v2.pdf")
				End Using
			Catch e As PDFNetException
				Console.WriteLine(e.Message)
				err = True
			End Try

			' Other format conversions...

			Return err
		End Function

		Private Shared Function ConvertToPdfFromFile() As Boolean
			Dim testfiles As New System.Collections.ArrayList()
			testfiles.Add(New ConvertTestCS.Testfile("simple-word_2007.docx", "docx2pdf.pdf", False))
			' Add other test files...

			Dim err As Boolean = False

			For Each file As Testfile In testfiles
				Try
					Using pdfdoc As pdftron.PDF.PDFDoc = New PDFDoc()
						' Conditions and conversions...
						pdftron.PDF.Convert.ToPdf(pdfdoc, inputPath & file.inputFile)
						pdfdoc.Save(outputPath & file.outputFile, SDFDoc.SaveOptions.e_linearized)
						Console.WriteLine("Converted file: " & file.inputFile)
						Console.WriteLine("to: " & file.outputFile)
					End Using
				End Try
				' Catch exceptions...
			Next file

			Return err
		End Function

		Shared Sub Main(ByVal args() As String)
			PDFNet.Initialize(PDFTronLicense.Key)
			Dim err As Boolean = False

			err = ConvertToPdfFromFile()
			If err Then
				Console.WriteLine("ConvertFile failed")
			Else
				Console.WriteLine("ConvertFile succeeded")
			End If

			err = ConvertSpecificFormats()
			If err Then
				Console.WriteLine("ConvertSpecificFormats failed")
			Else
				Console.WriteLine("ConvertSpecificFormats succeeded")
			End If

			' Finalization...
			PDFNet.Terminate()
			Console.WriteLine("Done.")
		End Sub
	End Class
End Namespace

var Ocr = new IronTesseract(); // Configure nothing
using (var Input = new OcrInput())
{
    // Add PDF with password
    Input.AddPdf("example.pdf", "password");
    var Result = Ocr.Read(Input);
    Console.WriteLine(Result.Text);
}

Dim Ocr = New IronTesseract() ' Configure nothing
Using Input = New OcrInput()
	' Add PDF with password
	Input.AddPdf("example.pdf", "password")
	Dim Result = Ocr.Read(Input)
	Console.WriteLine(Result.Text)
End Using

IEnumerable<int> numbers = new List<int> {2,8,10};
// Create an IronTesseract object
var Ocr = new IronTesseract();
using (var Input = new OcrInput())
{
    // Single page
    Input.AddPdfPage("example.pdf",10);
    // Multiple pages
    Input.AddPdfPages("example.pdf", numbers);
    var Result = Ocr.Read(Input);
    Console.WriteLine(Result.Text);
    // Save result to a text file
    Result.SaveAsTextFile("ocrtext.txt");
}

Dim numbers As IEnumerable(Of Integer) = New List(Of Integer) From {2, 8, 10}
' Create an IronTesseract object
Dim Ocr = New IronTesseract()
Using Input = New OcrInput()
	' Single page
	Input.AddPdfPage("example.pdf",10)
	' Multiple pages
	Input.AddPdfPages("example.pdf", numbers)
	Dim Result = Ocr.Read(Input)
	Console.WriteLine(Result.Text)
	' Save result to a text file
	Result.SaveAsTextFile("ocrtext.txt")
End Using

// Create an IronTesseract object
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.EnglishBest;
Ocr.Configuration.ReadBarCodes = true;
Ocr.Configuration.TesseractVersion = TesseractVersion.Tesseract5;
using (var Input = new OcrInput())
{
    // Add an image with a barcode
    Input.AddImage("barcode.gif");
    // Read the image
    var Result = Ocr.Read(Input);

    // Iterate over all barcodes found and display their values
    foreach (var Barcode in Result.Barcodes)
    {
        Console.WriteLine(Barcode.Value);
    }
}

' Create an IronTesseract object
Dim Ocr = New IronTesseract()
Ocr.Language = OcrLanguage.EnglishBest
Ocr.Configuration.ReadBarCodes = True
Ocr.Configuration.TesseractVersion = TesseractVersion.Tesseract5
Using Input = New OcrInput()
	' Add an image with a barcode
	Input.AddImage("barcode.gif")
	' Read the image
	Dim Result = Ocr.Read(Input)

	' Iterate over all barcodes found and display their values
	For Each Barcode In Result.Barcodes
		Console.WriteLine(Barcode.Value)
	Next Barcode
End Using

// Create an IronTesseract object
var Ocr = new IronTesseract();
using (var Input = new OcrInput())
{
    // Define the content area to be scanned
    var ContentArea = new System.Drawing.Rectangle() { X = 215, Y = 1250, Height = 280, Width = 1335 };
    // Add image specifying the content area
    Input.Add("document.png", ContentArea);
    // Perform OCR operation
    var Result = Ocr.Read(Input);
    // Print the text
    Console.WriteLine(Result.Text);
}

' Create an IronTesseract object
Dim Ocr = New IronTesseract()
Using Input = New OcrInput()
	' Define the content area to be scanned
	Dim ContentArea = New System.Drawing.Rectangle() With {
		.X = 215,
		.Y = 1250,
		.Height = 280,
		.Width = 1335
	}
	' Add image specifying the content area
	Input.Add("document.png", ContentArea)
	' Perform OCR operation
	Dim Result = Ocr.Read(Input)
	' Print the text
	Console.WriteLine(Result.Text)
End Using