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PDF Tools API

Rotate PDF API

Fix page orientation in automated document intake, scanning, and review workflows with a simple PDF rotation endpoint.

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Credits

1 Credit / call

1 Credit per successful API request. Failed processing attempts are refunded automatically.

Pricing

1,000 Credits = $1

Every signed-in user receives 100 free API Credits each month.

Endpoint

/api/external/pdf-tools/rotate-pdf

Use your API Key in the x-api-key header.

Use case

Use it after scanning, fax import, or mobile capture when some pages arrive sideways and need a consistent reading direction.

cURL example

curl -X POST https://itextmaster.com/api/external/pdf-tools/rotate-pdf \
  -H 'x-api-key: YOUR_API_KEY' \
  -F 'file=@input.pdf;type=application/pdf' \
  -F 'options={"angle":90,"pages":[1,3,5]}' \
  --output rotated.pdf

Multipart example

curl -X POST https://itextmaster.com/api/external/pdf-tools/rotate-pdf \
  -H 'x-api-key: YOUR_API_KEY' \
  -F 'file=@input.pdf;type=application/pdf' \
  -F 'options={"angle":90,"pages":[1,3,5]}' \
  --output rotated.pdf

JSON base64 example

curl -X POST https://itextmaster.com/api/external/pdf-tools/rotate-pdf \
  -H 'Content-Type: application/json' \
  -H 'x-api-key: YOUR_API_KEY' \
  -d '{
    "file": { "name": "input.pdf", "dataBase64": "JVBERi0xLjcK..." },
    "options": {"angle":90,"pages":[1,3,5]}
  }' \
  --output rotated.pdf

Node.js example

import { writeFile } from 'node:fs/promises';

const response = await fetch('https://itextmaster.com/api/external/pdf-tools/rotate-pdf', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-api-key': process.env.ITEXTMASTER_API_KEY
  },
  body: JSON.stringify({
  file: { name: 'input.pdf', dataBase64: 'JVBERi0xLjcK...' },
  options: {"angle":90,"pages":[1,3,5]}
})
});

if (!response.ok) {
  throw new Error(await response.text());
}

await writeFile('rotated.pdf', Buffer.from(await response.arrayBuffer()));

Python example

import os
import requests

response = requests.post(
    'https://itextmaster.com/api/external/pdf-tools/rotate-pdf',
    headers={
        'Content-Type': 'application/json',
        'x-api-key': os.environ['ITEXTMASTER_API_KEY'],
    },
    json={
        'file': {'name': 'input.pdf', 'dataBase64': 'JVBERi0xLjcK...'},
        'options': {'angle': 90, 'pages': [1, 3, 5]}
    },
)
response.raise_for_status()

with open('rotated.pdf', 'wb') as f:
    f.write(response.content)

Error codes

401invalid_api_key

The x-api-key header is missing, invalid, or has been rotated.

402insufficient_credits

The account does not have enough API Credits for the request.

422pdf_tool_processing_failed

The file, options, or PDF structure could not be processed. Failed processing attempts are refunded automatically.

Limits

  • Angles should use supported right-angle rotations such as 90, 180, or 270 degrees.
  • Page numbers must exist in the input PDF.
  • Encrypted PDFs may need to be unlocked first.

Response headers

rotated.pdf with X-Credits-Charged: 1 and X-Credit-Balance response headers.

Content-Type
The MIME type of the generated file, usually application/pdf or application/zip.
Content-Disposition
Attachment filename for the generated output.
X-Credits-Charged
Credits charged for the successful request.
X-Credit-Balance
Remaining API Credit balance after the request.

FAQ

How much does the Rotate PDF API cost?

Each successful Rotate PDF API request uses 1 Credit. 1,000 Credits cost $1, and every signed-in user receives 100 free API Credits each month.

What happens if processing fails?

Failed processing attempts are refunded automatically, and the API returns an error response you can log or retry.

Should I call this API from the browser?

No. Keep API Keys server-side and call the endpoint from your backend, queue, or automation job when you need to rotate pdf.

Start with 100 free API Credits

Create an API Key, test Rotate PDF API, and buy more Credits only when automation volume grows.

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