jsvine/pdfplumber
Pdfplumber
pdfplumber is a PDF data extraction library and layout analysis tool used to retrieve text, tables, and geometric objects from PDF files using precise coordinate-based analysis. It functions as a layout analyzer and table parser that identifies the bounding boxes and visual coordinates for every character and image on a page.
The library distinguishes itself through visual debugging capabilities, allowing users to render PDF pages as images and draw annotations to verify the position of extracted data. It employs line and intersection analysis to identify cell structures and convert unstructured tabular data into organized lists.
The tool covers broad capability areas including geometric object extraction, spatial filtering via page area cropping, and the retrieval of document metadata from file trailers. It also supports text data mining that preserves the visual arrangement of characters.
Features
- PDF Libraries - A library for extracting text, tables, and geometric objects from PDF files with precise coordinate-based layout analysis.
- Table Detection Algorithms - Identifies table cells by detecting intersecting horizontal and vertical lines within the document's vector drawing instructions.
- Text Extraction - Uses a low-level PDF parsing engine to retrieve raw characters and their associated font and position metadata.
- PDF Layout Analysis Tools - Retrieves bounding boxes and visual coordinates for every character and image on a PDF page.
- Geometric Object Extraction - Retrieves detailed data for characters, lines, rectangles, curves, images, and annotations on a page.
- Table Extraction Utilities - Identifies table structures and converts cell-based data into organized lists by analyzing lines and intersections.
- PDF Parsers - Extracts text and layout information from PDF documents while preserving the visual arrangement of characters.
- Layout Preservation - Converts characters into strings or word lists while preserving visual arrangement and reading direction.
- Page Coordinate Mapping - Maps every character and line to exact Cartesian coordinates on the page to enable precise geometric extraction.
- Document Region Filtering - Provides capabilities to isolate specific page regions by filtering objects outside a defined rectangular area.
- Extraction Verification Tools - Renders page images and draws bounding boxes to verify the accuracy of extracted PDF elements.
- Visual Debuggers - Renders PDF pages as images and draws annotations to verify the position of extracted data.
- Document Processing - Programmatically analyzes document structures by retrieving geometric objects and metadata from PDF files.
- Page Cropping - Isolates specific sections of a page by defining a bounding box to keep or remove objects.
- Document Page Rendering - Provides the ability to render PDF pages as images to visually verify the accuracy of extracted data and coordinates.
- Image Annotation Tools - Draws lines, rectangles, and circles on rendered images to visually verify extracted object positions.
- Visual Debugging Overlays - Converts vector page data into pixel-based images to overlay extracted coordinates for visual verification.
- Document Parsing - Character-level PDF text and table extraction.
- Table Processing - Tool for PDF table parsing and extraction.
- PDF Processing Tools - Extracts text, tables, and visual data from PDF files.
