Microsoft PowerPoint Document Loader

Microsoft PowerPoint is a presentation program for creating and displaying slide shows. This module provides functionality to load and process PowerPoint files using officeparser.

This module provides a sophisticated PowerPoint document loader that can:

• Load PowerPoint presentations
• Extract text from slides
• Split content into individual slides
• Handle slide numbering
• Process metadata per slide
• Support multiple slide formats
• Handle various slide separators

Inputs

Required Parameters

• PowerPoint File: The PowerPoint file(s) to process (.ppt, .pptx)

Optional Parameters

• Text Splitter: A text splitter to process the extracted content
• Additional Metadata: JSON object with additional metadata
• Omit Metadata Keys: Comma-separated list of metadata keys to omit

Outputs

• Document: Array of document objects containing metadata and pageContent
• Text: Concatenated string from pageContent of documents

Features

• Text extraction
• Slide separation
• Metadata handling
• Error handling
• Memory-efficient processing
• Heuristic slide detection
• Content filtering

Slide Detection Methods

Pattern Recognition

The loader attempts to identify slides using common patterns:

• “Slide X” markers
• “Page X” markers
• “X/Y” page numbers
• Underscore separators
• Dash separators
• Multiple newlines

Fallback Mechanisms

If pattern recognition fails:

1. Split by double newlines
2. Treat content as single slide

Document Structure

Each document contains:

• pageContent: Extracted text content from the slide
• metadata:
  • slideNumber: Sequential slide number
  • documentType: “powerpoint”
  • Additional custom metadata

Content Processing

• Empty slides are filtered out
• Leading/trailing whitespace removed
• Minimum content length validation
• Reasonable slide count validation

Metadata Attributes

Default attributes include:

• slideNumber: Slide number (number)
• documentType: Type of document (string)
• Custom metadata from input

Notes

• Uses officeparser for extraction
• Handles various slide formats
• Intelligent slide detection
• Content validation
• Memory-efficient processing
• Error handling for invalid files
• Flexible output formats
• Robust fallback mechanisms