How can I merge multiple PDF documents and which library should I chose

Aspose.PDF Product Family
1

I’m considering buying Aspose library to work with PDF

2

To merge multiple PDF documents using Aspose, you can utilize the Aspose.PDF library, which provides a straightforward way to concatenate PDF files.

You can refer to the official documentation on how to concatenate PDF documents, which includes detailed instructions and code examples. This will guide you through the process of merging PDFs effectively.

Here’s a simple example of how you can merge PDF files using Aspose.PDF in Java:

import com.aspose.pdf.Document;

public class MergePDFs {
    public static void main(String[] args) {
        // Create a new document
        Document outputDocument = new Document();

        // Load the first PDF file
        Document pdf1 = new Document("path/to/first.pdf");
        outputDocument.getPages().add(pdf1.getPages());

        // Load the second PDF file
        Document pdf2 = new Document("path/to/second.pdf");
        outputDocument.getPages().add(pdf2.getPages());

        // Save the merged document
        outputDocument.save("path/to/merged.pdf");
    }
}

This code snippet demonstrates how to load multiple PDF files and merge them into a single document. You can add as many PDF files as you need by repeating the loading and adding process.

If you’re considering purchasing the Aspose library, it is a robust choice for working with PDF files, offering a wide range of features beyond just merging, such as editing, converting, and creating PDFs.

For more detailed information, you can check the article on concatenating PDF documents here.

Sources:
[1]: Need to merge multiple pdfs using java