Set PDF Page Label API

Add or update PDF page labels in your application or workflow with our Set PDF Page Label API.

Why Nutrient DWS API?

SOC 2 Compliant

Build the workflows you need without worrying about security. We don’t store any document data, and our API endpoints are served through encrypted connections.

Easy Integration

Get up and running in hours, not weeks. Access well-documented APIs and code samples that make integrating with your existing workflows a snap.

Robust and Flexible

With access to more than 30 tools, you can process one document in multiple ways by using API credits. Generate PDF from HTML, convert Word, Excel, PowerPoint and image files to PDF, and more.

Simple and Transparent Pricing

Select a package that suits your needs according to the number of credits you wish to spend. Each API tool and action has a specific credit cost.

Try It Out

This example changes the page label of the first page (index 0) to i, the label of pages with indexes 1, 2, and 3 to intro, and the label of pages with indexes 4 and 5 to final.

1

Use Your Free API Calls

Sign up and receive 100 credits for free, or log in to automatically add your API key to sample code. If you are not sure how credits are consumed read more in our pricing documentation , or check out this guide on calculating credit usage.

2

Add a File

Add a PDF named document.pdf to your project folder. You can also use our sample file. The file name is case sensitive. Make sure the file name matches the file name in the sample code.

3

Run the Code

Copy the code and run it from the same folder you added the files to. For more information, see our language-specific getting started guides.

4

View the Results

Open result.pdf in your project folder to view the results.

curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer your_api_key_here" \
  -o result.pdf \
  --fail \
  -F document=@document.pdf \
  -F instructions='{
      "parts": [
        {
          "file": "document"
        }
      ],
      "output": {
        "type": "pdf",
        "labels": [
          {
            "pages": {
              "start": 0,
              "end": 0
            },
            "label": "i"
          },
          {
            "pages": {
              "start": 1,
              "end": 3
            },
            "label": "intro"
          },
          {
            "pages": {
              "start": 4,
              "end": 5
            },
            "label": "final"
          }
        ]
      }
    }'
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