PDFTextSearch

A powerful Spring Boot backend service that provides full-text search capabilities on PDF documents using Apache Tika and Elasticsearch.

Features

• PDF Upload - REST API for uploading and storing PDF files
• Text Extraction - Apache Tika integration for PDF text extraction
• Elasticsearch Indexing - Automatic indexing of extracted text
• Full-text Search - Advanced search capabilities
• Async Processing - Background processing for large files
• Pagination - Support for paginated search results

Quick Start

Prerequisites

• Java 17+
• Maven 3.6+
• Elasticsearch 8.x

1. Clone & Setup

git clone https://github.com/yourusername/PDFTextSearch.git
cd PDFTextSearch

2. Start Elasticsearch

docker run -d -p 9200:9200 -p 9300:9300 \
  -e "discovery.type=single-node" \
  -e "xpack.security.enabled=false" \
  docker.elastic.co/elasticsearch/elasticsearch:8.11.0

3. Run Application

mvn spring-boot:run

API Endpoints

Upload PDF

POST /api/pdf/upload
Content-Type: multipart/form-data
Body: file=@document.pdf

Upload PDF

POST /api/pdf/upload
Content-Type: multipart/form-data
Body: file=@document.pdf

Search PDFs

GET /api/pdf/search?query=spring+boot&page=0&size=10

Get All Documents

GET /api/pdf/all

Delete Document

DELETE /api/pdf/{id}

Techonology Stack

Java 17 Spring Boot 3.2.0 Apache Tika 2.9.1 Elasticsearch 8.x Spring Data Elasticsearch

Project Structure

src/main/java/com/example/pdftextsearch/
├── config/
│   ├── ElasticsearchConfig.java
│   └── AsyncConfig.java
├── controller/
│   └── PDFController.java
├── model/
│   └── PDFDocument.java
├── repository/
│   └── PDFDocumentRepository.java
├── service/
│   ├── PDFDocumentService.java
│   ├── PDFTextExtractionService.java
│   └── FileStorageService.java
└── PdfTextSearchApplication.java

Configuration

server:
  port: 8080

spring:
  data:
    elasticsearch:
      uris: http://localhost:9200

file:
  upload-dir: ./uploads

License

This project is licensed under the MIT License.