PDF-Seiten in verlustfreie PNG-Bilder konvertieren

# Convert page 1 to PNG at 300 DPI
curl -X POST \
  https://api.convertfilefast.com/v2/convert/pdf-to-png \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@document.pdf" \
  -F "page=1" \
  -F "dpi=300" \
  --output page1.png

# Convert all pages to PNG (returns ZIP)
curl -X POST \
  https://api.convertfilefast.com/v2/convert/pdf-to-png \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@document.pdf" \
  -F "dpi=150" \
  --output pages.zip

# HTTP 200 OK — Content-Type: image/png (single) or application/zip (all)