Rotate pages Leave feedback

GroupDocs.Merger allows to change page rotation angle by setting it to 90, 180 or 270 degrees for specific or all document pages.
Here are the steps to change page rotation:

• Initialize RotateOptions class with desired rotation angle and page numbers;
• Instantiate Merger object with source document path or InputStream;
• Call rotatePages method and pass RotateOptions object to it;
• Call save method specifying file path to save resultant document.

The following code sample demonstrates how to change page rotation:

const inputFilePath = `c:/sample.pdf`;
const merger = new groupdocs.merger.Merger(inputFilePath);
const outputPath = `c:/output/result.pdf`;
const rotateMode = groupdocs.merger.RotateMode.Rotate180;
const rotateOptions = new groupdocs.merger.RotateOptions(rotateMode, 1, 2);
merger.rotatePages(rotateOptions);
merger.save(outputPath);