PDF Text Extraction via DPI Rendering and Line Templates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for extracting data from Adobe PDF documents are cumbersome and error-prone, requiring manual re-entry of data into computer applications due to the inability to manipulate PDF documents effectively.
Innovation Solution
A user interface that renders Adobe PDF documents into DPI images, allowing text extraction and transformation into editable formats like Microsoft Excel, using line insertion tools to define templates and a text extraction parser to export renderable text.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual data re-entry from PDF documents is used, then data can be transferred to computer applications, but the process is cumbersome and error-prone
Solution Approach 1:
The patent uses optical character recognition (OCR) technology to create digital copies of text from PDF documents. The system captures the visual appearance of text in the PDF and converts it into machine-readable text data, eliminating the need for manual re-entry while preserving accuracy through automated recognition processes.
Solution Approach 2:
The patent replaces the manual mechanical process of reading and re-typing data with an automated computer vision system. The OCR engine automatically detects, recognizes, and extracts text from PDF documents, substituting human manual operations with computational processes that are both faster and more accurate.
2Adaptability or versatility
If PDF documents are rendered into DPI images, then text extraction becomes possible in Java regions, but the original PDF structure is lost
Solution Approach 1:
The patent performs preliminary rendering of the PDF document into a high-resolution DPI image before text extraction. This pre-processing step converts the PDF into a format that is compatible with Java regions, enabling subsequent OCR processing to work effectively while preserving the visual text information needed for accurate extraction.
Solution Approach 2:
The patent introduces a DPI image as an intermediary format between the original PDF document and the final extracted text. This intermediate representation maintains the visual fidelity of the original document while being compatible with Java-based processing systems, allowing text extraction without direct loss of the original PDF structure.
3Measurement precision
If line insertion tools are used to define templates, then text extraction accuracy improves, but the operation becomes more complex
Solution Approach 1:
The patent implements automated template generation that analyzes the PDF document structure and creates extraction templates without requiring manual line insertion. The system automatically detects text regions, tables, and structural elements, generating appropriate extraction patterns that improve accuracy while eliminating the complexity of manual template definition.
Solution Approach 2:
The patent automatically adjusts template parameters based on the characteristics of the PDF document being processed. The system dynamically modifies extraction parameters such as region boundaries, text selection criteria, and formatting rules to match the specific document structure, thereby maintaining high accuracy without requiring complex manual configuration.
Data Source
AI summary
Methods for converting an Adobe™ PDF document into an editable document is provided. Methods may receive an Adobe™ PDF document and displaying the Adobe™ PDF document. Methods may enable a user to create a plurality of horizontal lines and a plurality of vertical lines on the document. The horizontal and vertical lines may create rows and columns. Methods may create an editable document upon receipt of at least one row and at least one column on the document. The editable document may correspond to the rows and columns within the created horizontal and vertical lines. The editable document may be a Microsoft Excel™ spreadsheet or any other suitable document. Methods may create a horizontal line or vertical line at a location of a cursor when a corresponding click is received.