PDFページを ロスレスPNG画像に変換

# 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)

import requests

# Single page
response = requests.post(
    "https://api.convertfilefast.com/v2/convert/pdf-to-png",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    files={"file": open("document.pdf", "rb")},
    data={"page": 1, "dpi": 300}
)

with open("page1.png", "wb") as f:
    f.write(response.content)

# All pages (returns ZIP)
response = requests.post(
    "https://api.convertfilefast.com/v2/convert/pdf-to-png",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    files={"file": open("document.pdf", "rb")},
    data={"dpi": 150}
)

with open("pages.zip", "wb") as f:
    f.write(response.content)

const formData = new FormData();
formData.append("file", fs.createReadStream("document.pdf"));
formData.append("page", "1");
formData.append("dpi", "300");

const response = await fetch(
  "https://api.convertfilefast.com/v2/convert/pdf-to-png",
  {
    method: "POST",
    headers: { "Authorization": "Bearer YOUR_API_KEY" },
    body: formData,
  }
);

fs.writeFileSync("page1.png", Buffer.from(await response.arrayBuffer()));

// n8n HTTP Request Node
{
  "method": "POST",
  "url": "https://api.convertfilefast.com/v2/convert/pdf-to-png",
  "contentType": "multipart-form-data",
  "bodyParameters": {
    "parameters": [
      { "name": "file", "parameterType": "formBinaryData", "inputDataFieldName": "data" },
      { "name": "page", "value": "1" },
      { "name": "dpi", "value": "300" }
    ]
  },
  "options": { "response": { "responseFormat": "file" } }
}