' Copyright (c) 2021 ActivePDF, Inc.
' ActivePDF OCR 2017
' Example generated 03/06/21
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
Imports ConverterKit.DK.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)
' PDF Compression
oOCR.Settings.PDF.Compression.TextAndLineArt = false
oOCR.Settings.PDF.Compression.ContentStream = ContentStreamOptions.Flate
oOCR.Settings.PDF.Compression.EmbeddedFonts = false
oOCR.Settings.PDF.Compression.BWImages = false
oOCR.Settings.PDF.Compression.ColorAndGrayImages = false
oOCR.Settings.PDF.Compression.MRC = MRCOptions.Disabled
' PDF Metadata
oOCR.Settings.PDF.Metadata.Author = "John Doe"
oOCR.Settings.PDF.Metadata.Title = "OCR Example"
oOCR.Settings.PDF.Metadata.Subject = "Example"
oOCR.Settings.PDF.Metadata.Keywords = "OCR, example, metadata"
' PDF Security
oOCR.Settings.PDF.Security.UseSecurity = false
oOCR.Settings.PDF.Security.Encryption = EncryptionType.AES_256
oOCR.Settings.PDF.Security.OwnerPassword = "ownerPassword"
oOCR.Settings.PDF.Security.UserPassword = "userPassword"
oOCR.Settings.PDF.Security.CanAnnotate = false
oOCR.Settings.PDF.Security.CanAssemble = false
oOCR.Settings.PDF.Security.CanCopy = false
oOCR.Settings.PDF.Security.CanEdit = false
oOCR.Settings.PDF.Security.CanFillInFormFields = false
oOCR.Settings.PDF.Security.CanMakeAccessible = false
oOCR.Settings.PDF.Security.CanPrint = false
oOCR.Settings.PDF.Security.CanPrintHiResolution = false
' PDF version
oOCR.Settings.PDF.Version = PDFVersion.PDF1_5
oOCR.Settings.PDF.Format = PDFOutputFormat.PDF
oOCR.Settings.PDF.PDFACompliance = PDFAComplianceLevel.NotSet
' 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
