OCR 2017

Set OCR options

Example code is for an older version of OCR, newer code is available.
' Copyright (c) 2019 ActivePDF, Inc.
' ActivePDF OCR 2017
' Example generated 07/21/19 

Imports System

' Make sure to add the ActivePDF product .NET DLL(s) to your application.
' .NET DLL(s) are typically found in the products 'bin' folder.
Imports OCRData.Enums.ImageProcessing
Imports OCRData.Enums.OCR
Imports OCRData.Enums.PDF

Public Class Examples
  Sub Example()
    Dim strPath As String, results As OCRDK.Results.OCRResult

    strPath = AppDomain.CurrentDomain.BaseDirectory

    ' Instantiate Object
    Dim oOCR As APOCR.Net45.OCR = New APOCR.Net45.OCR()
    
    ' OCR Settings
    oOCR.Settings.OCR.Deskew = DeskewOptions.Auto2D
    oOCR.Settings.OCR.Despeckled = true
    oOCR.Settings.OCR.ExportBookmarks = false
    oOCR.Settings.OCR.OCRType = OCRTypeOptions.SearchablePDF
    oOCR.Settings.OCR.PictureHandling = PictureHandlingOptions.Default
    oOCR.Settings.OCR.RetainLineNumbering = false
    oOCR.Settings.OCR.Rotation = RotationOptions.Auto
    oOCR.Settings.OCR.Languages.Add(LanguageOptions.English)
    
    ' Basic Settings
    oOCR.Settings.Debug = true
    oOCR.Settings.Timeout = 30
    oOCR.Settings.PDF.Linearize = false
    oOCR.Settings.PDF.OverwriteMethod = OverwriteMethod.Always
    
    ' Start OCR conversion
    results = oOCR.Convert(strPath & "multipage.tif", strPath & "new.pdf")
    If results.OCRStatus <> OCRDK.Results.OCRStatus.Success Then
      ErrorHandler("Convert", results, results.OCRStatus.ToString())
    End If
    
    ' Release Object
    oOCR = Nothing
    
    ' Process Complete
    WriteResults("Done!")
  End Sub
  
  ' Error Handling
  Sub ErrorHandler(ByVal strMethod As String, ByVal results As ADK.Results.Result, ByVal errorStatus As String)
    WriteResults("Error with " + strMethod)
    WriteResults(errorStatus)
    WriteResults(results.Details)
    If results.Origin.Function <> strMethod Then
      WriteResults(results.Origin.Class + "." + results.Origin.Function)
    End If
    If Not results.ResultException Is Nothing Then
      ' To view the stack trace on an exception uncomment the line below
      'WriteResults(results.ResultException.StackTrace)
    End If
    Environment.Exit(1)
  End Sub
  
  ' Write output data
  Sub WriteResults(content As String)
    ' Choose where to write out results
  
    ' Debug output
    'System.Diagnostics.Debug.WriteLine("ActivePDF: * " + content)
  
    ' Console
    Console.WriteLine(content)
  
    ' Log file
    'Using tw = New System.IO.StreamWriter(AppDomain.CurrentDomain.BaseDirectory & "application.log", True)
    '   tw.WriteLine("[" + DateTime.Now.ToString("MM/dd/yyyy HH:mm:ss") + "]: => " + content)
    'End Using
  End Sub
End Class

Copyright © 2019 ActivePDF, Inc