Make Searchable PDF - Powershell
PDF Extractor SDK sample in Powershell demonstrating ‘Make Searchable PDF’
MakeSearchablePDF.bat
@echo off
if "%~1"=="" (
echo -----------------------------------------------------
echo Invalid parameter!
echo -----------------------------------------------------
echo Usage: MakeSearchablePDF.bat file_name
echo Example: MakeSearchablePDF.bat "sample_ocr.pdf"
echo -----------------------------------------------------
if not "%NOPAUSE%"=="1" pause
exit /b 1
)
powershell -NoProfile -ExecutionPolicy Bypass -Command "& .\MakeSearchablePDF.ps1" "%1"
echo Script finished with errorlevel=%errorlevel%
pause
MakeSearchablePDF.ps1
#*******************************************************************************************#
# #
# Download Free Evaluation Version From: https://bytescout.com/download/web-installer #
# #
# Also available as Web API! Get Your Free API Key: https://app.pdf.co/signup #
# #
# Copyright © 2017-2020 ByteScout, Inc. All rights reserved. #
# https://www.bytescout.com #
# https://pdf.co #
# #
#*******************************************************************************************#
# By default, "SearchablePDFMaker" uses one of the standard PDF fonts to apply
# recognized text over the scanned document. Such fonts contain only basic characters
# from ISO-8859-1 charset.
# If you run OCR for one of the languages with characters that are not present in the default
# encoding, you should explicitly specify the font that contains the required characters
# using ".LabelingFont" property.
# If you run the application in Windows with a selected locale that matches OCR language,
# it will be enough to specify the usual font "Arial". But if your app will run in an unknown
# environment (for example, in some virtual machine) you will need to install some full Unicode
# font (e.g. "Arial Unicode MS") and then use it with SearchablePDFMaker:
# $SearchablePDFMaker.LabelingFont = "Arial Unicode MS"
Param (
[Parameter(Mandatory = $true)]
[string] $InputFileName = ""
)
#Add reference to Bytescout.PDFExtractor.dll assembly
Add-Type -Path "C:\Program Files\Bytescout PDF Extractor SDK\net4.00\Bytescout.PDFExtractor.dll"
# Check input file exists
if ((Test-Path $InputFileName) -eq $false) {
Write-Host "Input file does not exist." -ForegroundColor Red
Exit 0
}
# Create and activate Bytescout.PDFExtractor.SearchablePDFMaker instance
$SearchablePDFMaker = New-Object Bytescout.PDFExtractor.SearchablePDFMaker
$SearchablePDFMaker.RegistrationName = "demo"
$SearchablePDFMaker.RegistrationKey = "demo"
try {
# Load sample PDF document
$SearchablePDFMaker.LoadDocumentFromFile($InputFileName)
# Set the location of language data files
$SearchablePDFMaker.OCRLanguageDataFolder = "C:\Program Files\Bytescout PDF Extractor SDK\ocrdata_best\"
# Set OCR language
# "eng" for english, "deu" for German, "fra" for French, "spa" for Spanish etc - according to files in "ocrdata" folder
$SearchablePDFMaker.OCRLanguage = "eng"
# Set PDF document rendering resolution
$SearchablePDFMaker.OCRResolution = 300
# Process document
$SearchablePDFMaker.MakePDFSearchable("output.pdf")
} catch {
Write-Host $_.Exception.Message
}
# Cleanup
$SearchablePDFMaker.Dispose()