This is a file conversion backend built with Node.js that allows users to convert files like .docx, .txt, .pptx, etc., into PDF format using LibreOffice via the libreoffice-convert Node.js library. It supports multiple file uploads, uses Multer for handling file uploads, and Docker to ensure consistent LibreOffice availability across environments.
- ✅ Convert files to PDF (e.g. DOCX → PDF, TXT → PDF, PPTX → PDF)
- ✅ Multiple file upload support
- ✅ Uses LibreOffice for high-quality conversion
- ✅ Optional Docker setup for consistent environment
- ✅ EJS web interface for quick browser testing
- ✅ Organized code structure and response format
- Node.js
- Express.js
- Multer (File Upload Middleware)
- LibreOffice (via
libreoffice-convert) - Docker (optional)
- EJS (for testing via browser)
pdf-converter/
├── upload/ # Uploaded input files
├── download/ # Converted output PDFs
├── components/
│ └── fileConverter.js # Conversion logic using libreoffice-convert
├── views/
│ └── homepage.ejs # Web form to test file upload and conversion
├── app.js # Main Express server
├── Dockerfile # Docker config for LibreOffice
└── README.md
The following MIME types and extensions can be accepted and converted to PDF:
<input type="file" name="files" accept=".doc,.docx,.xls,.xlsx,.ppt,.pptx,.odt,.ods,.odp,.txt,.rtf,.html,.csv" multiple />
Supported extensions:
.doc, .docx
.xls, .xlsx
.ppt, .pptx
.odt, .ods, .odp
.txt, .rtf, .csv
.html, .htm
⚙️ Setup Instructions
1. Clone the Repository
git clone https://github.com/CoderAyushman/pdf-converter.git
cd pdf-converter
2. Install Dependencies
npm install
🐳 Docker Setup
To ensure LibreOffice works in all environments, use Docker:
1. Build Docker Image
docker build -t pdf-converter .
2. Run Docker Container
docker run -p 4000:4000 pdf-converter
LibreOffice is installed inside the Docker container, so you don’t need to install it manually.
🌐 Web Interface (EJS)
A simple HTML frontend is available:
http://localhost:4000