PDF-Compressor is a Java Spring Boot backend providing a REST API for PDF file validation and compression. It accepts PDF uploads, validates the file, compresses it using iText at maximum compression level, and returns the compressed PDF for download.
This project is finished and fully functional as a backend for PDF compression. The max upload size and request size are configurable via environment variables, allowing users to set limits according to their needs. It can still be extended with UI improvements, tests, and further configurations.
- 📄 PDF Validation: Checks file extension, content-type, and PDF integrity.
- 🗜️ PDF Compression: Compression using iText with compression level 9 (maximum).
- 🔄 REST API: POST
/compressendpoint for upload and compression. - 🌐 Web Interface: Simple upload page with dynamic CSP nonce for script security.
- 🔒 Security: Content Security Policy configured dynamically for scripts.
- ⚙️ Environment-based configuration: max upload size, application name, etc.
- Java 17
- Spring Boot 3.x
- Thymeleaf
- iText PDF Library
- Maven
- Java 17+
- Maven 3.8+
Clone the repository:
git clone https://uithub.com/Steph7478/PDF-Compressor.git
cd PDF-Compressor
Configure environment variables (example .env):
SPRING_APPLICATION_NAME=pdf-compressor
MAX_FILE_SIZE=10MB # Or any other size according to your needs
MAX_REQUEST_SIZE=10MB # Or any other size according to your needs
Run the application using Maven wrapper:
./mvnw spring-boot:run
Access the web interface at http://localhost:8080
Or use the REST API endpoint POST /compress to compress PDFs via multipart upload.
POST /compress
Parameter: file (PDF file in multipart form)
Returns: compressed PDF file (application/pdf content-type)
