How Does Server-Assisted PDF Table Extraction Work?
Extracting text operators, vector paths, and layout structures
PDF files are not simple flow documents; they consist of precise drawing instructions placed on a 2D coordinate plane. The conversion service parses PDF content and attempts to reconstruct detected tables into spreadsheet rows and columns.
- Semantic Layout Analysis: Groups isolated characters into words, sentences, and paragraphs based on spatial proximity.
- Table Grid Detection: Analyzes horizontal and vertical line intersections to reconstruct tabular data into structured spreadsheet cells.
- Embedded Image Extraction: Extracts raw image streams (JPEG, PNG, CCITT) directly from document dictionaries without lossy recompression.