Layout Analysis

Overview

Layout analysis is the process of leveraging Artificial Intelligence (AI) technology to parse and understand the structure of a document's layout. Its primary goal is to extract text, images, tables, layers, and other data from the input documents.

Layout analysis has several common use cases, including:

• Intelligent recognition of tables within PDF documents: This feature is particularly useful for analyzing company financial statements, invoices, bank statements, experimental data, medical test reports, and more.
• Smart extraction of text, images, or tables from PDF documents through layout analysis: This functionality greatly aids in the analysis and extraction of information from identification cards, receipts, licenses, documents, ancient books, and other various types of files.

Features that support Layout Analysis:

• PDF to Word
• PDF to Excel
• PDF to PowerPoint (PPT)
• PDF to HTML
• PDF to RTF
• PDF to TXT
• PDF to CSV
• Extract PDF to JSON
• Extract PDF to Markdown

Notice

• You need to load the DocumentAI model before using layout analysis, or plug in your own AI engine via the callbacks described in 3.11 Use Custom AI Models via Callbacks.
• When the OCR is enabled, the layout analysis is automatically enabled.
• AI table recognition is a separate stage controlled by its own option. See 3.10 Table Recognition for details.

Sample

This Sample demonstrates how to use Layout Analysis to convert a PDF to a DOCX file.

// Set the DocumentAI model path.
LibraryManager::SetDocumentAIModel("path/documentai.model");

ConvertOptions opt;
// Enable layout analysis option.
opt.enable_ai_layout = true;
CPDFConversion::StartPDFToWord("word.pdf", "password", "path/output.docx", opt);