ByteScout PDF Extractor SDK – VB6 – Scanned PDF To Text

  • Home
  • /
  • Articles
  • /
  • ByteScout PDF Extractor SDK – VB6 – Scanned PDF To Text

scanned PDF to text in VB6 and ByteScout PDF Extractor SDK

scanned PDF to text in VB6

Today we will explain the steps and algorithm of implementing scanned PDF to text and how to make it work in your application. ByteScout PDF Extractor SDK was made to help with scanned PDF to text in VB6. 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.

VB6, code samples for VB6, developers help to speed up the application development and writing a code when using ByteScout PDF Extractor SDK. This VB6 sample code should be copied and pasted into your application’s code editor. Then just compile and run it to see how it works. Use of ByteScout PDF Extractor SDK in VB6 is also explained in the documentation included along with the product.

On our website you may get trial version of ByteScout PDF Extractor SDK for free. Source code samples are included to help you with your VB6 application.

Form1.frm
      
VERSION 5.00 Begin VB.Form Form1 Caption = "Scanned PDF to Text" ClientHeight = 1095 ClientLeft = 120 ClientTop = 465 ClientWidth = 3675 LinkTopic = "Form1" ScaleHeight = 1095 ScaleWidth = 3675 StartUpPosition = 3 'Windows Default Begin VB.CommandButton cmd_scanned_pdf_to_text Caption = "Convert Scanned PDF to Text" Height = 855 Left = 120 TabIndex = 0 Top = 120 Width = 3495 End End Attribute VB_Name = "Form1" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = False Attribute VB_PredeclaredId = True Attribute VB_Exposed = False Private Sub cmd_scanned_pdf_to_text_Click() ' Hanlde Error On Error GoTo ErrorHandler: ' Create Bytescout.PDFExtractor.TextExtractor object Set extractor = CreateObject("Bytescout.PDFExtractor.TextExtractor") ' Set Registration name and key extractor.RegistrationName = "demo" extractor.RegistrationKey = "demo" ' Load sample PDF document extractor.LoadDocumentFromFile "sample.pdf" ' Enable Optical Character Recognition (OCR) extractor.OCRMode = 1 ' OCRMode.Auto = 1 ' Set the location of OCR language data files extractor.OCRLanguageDataFolder = "c:\Program Files\Bytescout PDF Extractor SDK\ocrdata" ' Set OCR language ' "eng" for english, "deu" for German, "fra" for French, "spa" for Spanish etc - according to files in "ocrdata" folder. extractor.OCRLanguage = "eng" ' Find more language files at https://github.com/bytescout/ocrdata ' Set PDF document rendering resolution extractor.OCRResolution = 300 ' You can also apply various preprocessing filters to improve the recognition on low-quality scans. ' But they significantly hit the performance, so do not enable them by default. ' Automatically deskew skewed scans 'extractor.OCRImagePreprocessingFilters.AddDeskew() ' Remove vertical or horizontal lines (sometimes helps to avoid OCR engine's page segmentation errors) 'extractor.OCRImagePreprocessingFilters.AddVerticalLinesRemover() 'extractor.OCRImagePreprocessingFilters.AddHorizontalLinesRemover() ' Repair broken letters 'extractor.OCRImagePreprocessingFilters.AddDilate() ' Remove noise 'extractor.OCRImagePreprocessingFilters.AddMedian() ' Apply Gamma Correction 'extractor.OCRImagePreprocessingFilters.AddGammaCorrection() ' Add Contrast ' extractor.OCRImagePreprocessingFilters.AddContrast(20) ' (!) You can use new OCRAnalyzer class to find an optimal set of image preprocessing ' filters for your specific document. ' See "OCR Analyser" example. ' Peform Save to Text file extractor.SaveTextToFile "output.txt" ' Show Success Message MsgBox "Extracted data from scanned PDF are saved to 'output.text' file.", vbInformation, "Success" ' Close form Unload Me ErrorHandler: If Err.Number <> 0 Then MsgBox Err.Description, vbInformation, "Error" End If End Sub

Scanned_PDF_To_Text.vbp
      
Type=Exe Reference=*\G{00020430-0000-0000-C000-000000000046}#2.0#0#..\..\..\..\..\..\..\..\..\Windows\SysWOW64\stdole2.tlb#OLE Automation Reference=*\G{F1D62CEE-68AA-4F38-9DB0-8021C13255D8}#9.1#0#..\..\..\..\..\..\..\..\..\WINDOWS\SYSWOW64\Bytescout.PDFRenderer.tlb#ByteScout PDF Renderer SDK [TRIAL] Form=Form1.frm Startup="Form1" Command32="" Name="ScannedPDFToText" HelpContextID="0" CompatibleMode="0" MajorVer=1 MinorVer=0 RevisionVer=0 AutoIncrementVer=0 ServerSupportFiles=0 VersionCompanyName="Hiren" CompilationType=0 OptimizationType=0 FavorPentiumPro(tm)=0 CodeViewDebugInfo=0 NoAliasing=0 BoundsCheck=0 OverflowCheck=0 FlPointCheck=0 FDIVCheck=0 UnroundedFP=0 StartMode=0 Unattended=0 Retained=0 ThreadPerObject=0 MaxNumberOfThreads=1

READ MORE

Visit ByteScout PDF Extractor SDK page or

explore documentation

GET YOUR 90 DAY FREE

https://bytescout.com/download/web-installer

Tutorials:

prev
next