Convert PDF to Searchable PDF

Overview

Searchable PDF conversion adds a hidden text layer to an image-based PDF such as a scanned document using OCR.

Set Transparent Text Layer

Use transparent_text to control whether the text layer is transparent.

Sample

ComPDFKitConversion::LibraryManager.set_document_ai_model("/path/to/documentai.model", -1)

options = ComPDFKitConversion::ConvertOptions.new
options.enable_ocr = true
options.transparent_text = true
options.languages = [ComPDFKitConversion::OCRLanguage::ENGLISH]

result = ComPDFKitConversion::Conversion.start_pdf_to_searchable_pdf(
  input_file_path,
  "",
  output_file_path,
  options
)