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Highlight PDF Document with Python REST API

This tutorial shows how to PDF Python developers can easily add highlight annotations to a PDF document using the Aspose.PDF Cloud REST API. You’ll learn to build a PDF highlighter with the Python SDK, customize the highlight appearance, and manage the process end‑to‑end.

Prerequisite

Steps to Highlight Text in PDF Document with Python Low Code API

  1. Configure the PdfApi object with your API key and Application SID.
  2. Create a HighlightAnnotation instance, specifying the rectangle area and highlight color.
  3. Set the creation and modification dates for the annotation.
  4. Upload the target PDF file to Aspose Cloud storage.
  5. Call the PostPageHighlightAnnotations() method, providing the file name, page number, and the annotation object.
  6. Download the updated PDF file containing the highlight.

These steps illustrate how to add a highlight to a PDF using the Python Low Code API: instantiate PdfApi, build a HighlightAnnotation with the desired rectangle and color, upload the PDF, invoke PostPageHighlightAnnotations(), and finally retrieve the highlighted document.

Code to Highlight Text in PDF with Python REST Interface

The sample demonstrates how to highlight PDF documents via the Python REST interface. You can adjust properties such as the annotation’s ID, contents, Z‑index, alignment, and subject, as well as correctly set the creation and modification dates to ensure a smooth API call.

For further PDF manipulation, see the article on Add Checkbox in PDF with Python REST API.

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