abstract-pdfs 0.0.34

A structured pipeline for transforming PDFs into **searchable, metadata-rich, web-ready content**, combining OCR, page-level analysis, metadata generation, and static site scaffolding.

abstract_pdfs — Document Processing & SEO Pipeline for PDF-Based Content

A structured pipeline for transforming PDFs into searchable, metadata-rich, web-ready content, combining OCR, page-level analysis, metadata generation, and static site scaffolding.

Designed for:

• large PDF collections
• SEO-driven content indexing
• document-to-web publishing pipelines
• structured ingestion of unstructured media

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🔹 What This System Is

abstract_pdfs is not a PDF utility — it is a full document processing pipeline:

• ingests raw PDFs
• decomposes them into pages, images, and text
• extracts and generates metadata
• enriches content via NLP APIs
• builds structured outputs (JSON + HTML)
• generates navigable web content (galleries + viewers)

The result is a fully browsable, searchable document corpus.

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🔹 Pipeline Overview

PDF Input
    ↓
Slice / Decompose (images + text per page)
    ↓
OCR + Text Extraction (layout-aware engines)
    ↓
Metadata Generation
    ├─ summaries
    ├─ keywords
    ├─ descriptions
    ↓
Manifest Creation (per-page + per-document)
    ↓
HTML Generation
    ├─ PDF viewer pages
    ├─ gallery index pages
    ↓
Static Site Output (SEO-ready)

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abstract_pdfs diagram

flowchart TD
    A[PDF Input]
    B[DocumentPipeline]
    C[SliceManager\nPage Images + Text + OCR]
    D[Per-Page Assets\nThumbnails / Text / Info JSON]
    E[Manifest Generation\nPage + Document Metadata]
    F[NLP Enrichment\nSummaries + Keywords + Descriptions]
    G[HTML Generation\nViewer Pages + Gallery Indexes]
    H[Static Output\nSearchable / SEO-ready PDF Corpus]

    A --> B --> C --> D --> E --> F --> G --> H

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🔹 Core Capabilities

Document Decomposition

• Splits PDFs into:

  • page images
  • extracted text
  • structured page directories

• Maintains consistent directory structure for downstream processing

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Metadata & SEO Enrichment

• Generates:

  • summaries
  • keywords
  • descriptions

• Integrates with NLP endpoints for:

  • text analysis
  • keyword refinement
  • summarization

Example: page-level analysis via API calls

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Manifest Generation

• Produces structured JSON per page:

  • metadata
  • text
  • image references
  • SEO fields

• Aggregates into document-level manifests

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Static Site Generation

• Generates:

  • PDF viewer pages (page-by-page navigation)
  • gallery index pages (directory browsing)

• Automatically builds:

  • thumbnails
  • descriptions
  • keyword tags

Example: dynamic card generation for directories

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Path ↔ URL Mapping

• Converts filesystem structure into web-accessible URLs

• Maintains consistency between:

  • local storage (/srv/media/...)
  • public endpoints (/pdfs/...)

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Content Structuring

• Page-level:

  • text
  • summary
  • keywords

• Document-level:

  • aggregated metadata
  • full-text indexing

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🔹 Architecture

The system is composed of modular components:

• DocumentPipeline

  • orchestrates ingestion → processing → output

• SliceManager

  • handles PDF decomposition and OCR

• Manifest Generators

  • build structured JSON representations

• HTML Generators

  • render viewer and gallery pages

• Metadata Utilities

  • enrich content via external NLP services

Each stage is:

• independent
• composable
• replaceable

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🔹 Key Design Decisions

Page-Level First

All processing happens per-page, enabling:

• granular indexing
• targeted metadata
• scalable processing

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Structured Over Raw

Outputs are always:

• JSON manifests
• structured metadata
• normalized fields

Not just raw text dumps.

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SEO as a First-Class Concern

Every page includes:

• meta tags
• OpenGraph / social metadata
• keyword tagging
• canonical URLs

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Filesystem as Source of Truth

• directory structure = content hierarchy
• no database required
• easily deployable as static site

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🔹 Why This Exists

Traditional PDF workflows:

• store documents as opaque blobs
• lack searchability
• lack metadata
• are not web-native

abstract_pdfs transforms PDFs into:

• structured, indexable content
• web-ready assets
• searchable knowledge bases

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🔹 Example Use Cases

• PDF → website publishing pipelines
• document archives (research, legal, media)
• SEO-driven content platforms
• knowledge base generation
• preprocessing for LLM / search systems

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🔹 Integration Context

This system integrates with:

• OCR pipelines (layout_ocr / abstract_ocr)
• NLP systems (abstract_hugpy)
• static hosting (Nginx / CDN)
• search indexing systems

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🔹 Design Philosophy

• Documents are data, not files
• Structure before presentation
• Metadata is as important as content
• Static outputs scale better than dynamic systems

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