PDF Converter.Office & images to PDF — no cloud account.

curl -fsSL https://get.docker.com | sh && newgrp docker
unzip pdf_converter_release.zip -d pdf-converter
cd pdf-converter
docker compose up -d --build

WebUI: http://SERVER-IP:8891. No login required.

1. Install Container Manager from Package Center
2. Enable SSH
3. Transfer ZIP to /volume1/docker/pdf-converter/
4. Via SSH: docker compose up -d --build

Note: If DSM blocks port 8891, change the port mapping in docker-compose.yml to 8892:8891. Value models with only 2 GB RAM: Office conversion may be OOM-killed on large documents.

cd /volume3/docker
unzip pdf_converter_release.zip -d pdf-converter
cd pdf-converter
docker compose up -d --build

For long builds, it's better to log in via real SSH instead of the web terminal (limited output buffer).

Unraid: Compose Manager plugin, ZIP to /mnt/user/appdata/pdf-converter/, volume mount /mnt/user/appdata/pdf-converter:/data.

TrueNAS Scale (≥24.x): Prefer SSH for full Compose functionality, ZFS datasets for data/ (snapshots before large batches).

Works on Pi 4/5, but LibreOffice on ARM is significantly slower — one Office conversion can take 10–30 seconds. Only practical for occasional conversions, not for bulk processing.

unzip pdf_converter_release.zip -d pdf-converter
cd pdf-converter
docker compose up -d --build

Browser: http://localhost:8891. Important: Increase the Docker Desktop memory limit to at least 4 GB (Settings → Resources → Memory) — LibreOffice needs it.

By default, there is no authentication — for public deployments, be sure to put a reverse proxy with auth in front of it.

pdf.example.com {
    basicauth {
        admin <bcrypt-hash>
    }
    reverse_proxy localhost:8891
}

Generate bcrypt-hash: caddy hash-password.

services:
  pdf-converter:
    mem_limit: 4g           # IMPORTANT: LibreOffice needs this
    environment:
      - MAX_UPLOAD_MB=200   # Maximum upload size
      - WORKER_TIMEOUT=300  # Timeout for long conversions (seconds)