`rotate()` is a `PyPDF2` function that allows developers to rotate the pages of a PDF file by a specified angle. It's useful for correcting orientation issues in PDF files and for generating reports or documents with a specific page orientation.

Let's rotate the first page of the sample.pdf and save the result in the new output.pdf file. 

The sample.pdf looks in that way:

After successful completeon of the task the output.pdf contains:

In this project, we will study how to manipulate and extract data from PDF files, such as text and images, and combine multiple PDF files into a single document.

In this project we will study how to manipulate and extract data from PDF files, such as text and images, and combine multiple PDF files into a single document.

Manipulating and Combining PDFs

Rotate Pages

Soluzione