This tutorial shows how to Python developers can easily embed a PDF watermark using the Aspose.PDF Cloud REST API, with a quick walkthrough of the Python SDK, customization options, and the exact steps to place the watermark on the desired page. For more details on the PDF format, see the PDF file info page.
Prerequisite
- Create an account API credentials
- Download the Aspose.PDF Cloud SDK for Python
- Set up a Python project with the SDK for working with text stamps
Steps to Add Watermark to PDF Document with Python RESTful Service
- Configure the PdfApi class object with your API key and App SID.
- Create a Stamp object and set its parameters (text, font, color, opacity, etc.).
- Upload the target PDF file to the cloud storage for adding a watermark.
- Call the PutPageAddStamp() method to insert the Stamp as a watermark.
- Download the PDF file that now contains the watermark.
These steps describe how to add a watermark in a PDF online with the Python REST interface. Instantiate the PdfApi object, create a stamp object, set its properties, upload the PDF to the cloud, invoke PutPageAddStamp() to apply the watermark, and finally save the resulting PDF locally.
Code to Put Watermark on PDF with Python REST Interface
The sample demonstrates how to put a watermark on a PDF using the Python‑based API. You can adjust parameters such as the stamp text value, stamp type, background flag, indentation, rotation, opacity, zoom level, foreground color, and margins. The SDK also supports reading and deleting watermarks and other stamps on a PDF file.
If you need to insert an image into a PDF, see the article Insert Image into PDF with Python REST API.
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