pdf

type PDFImageData struct {
	ID              string
	ImageData       string // Base64 encoded image data
	Image           string // Data URL format
	URL             string
	Metadata        map[string]interface{}
	OCRText         string
	EXIFData        map[string]interface{}
	Caption         string
	PageNumber      int
	ImageIndex      int
	SourcePDF       string
	SurroundingText string // Text context from the page where the image appears
	SectionHeading  string // Section/chapter heading if available
}

type PDFTextData struct {
	ID         string
	Content    string
	URL        string
	Metadata   map[string]interface{}
	PageNumber int
	SourcePDF  string
}