How to Reorder Pages in a PDF Using Java (Step-by-Step Tutorial)

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In document processing workflows, page order is everything. Whether you are correcting a scanned document, organizing a business proposal, or programmatically building a report, the ability to move, swap, or reverse pages is a critical requirement for Java developers.

While the PDF format is notoriously difficult to manipulate directly, the JPedal Java PDF Library provides a high-level PdfManipulator class that makes these changes in just a few lines of code.

Why Reorder Pages Programmatically?

You may want to reorder pages in a PDF to improve the structure or clarity of the document. For example, you might want to modify the order of steps in a business proposal. Page order can affect how people understand your document, so a misplaced page should be corrected. Other reasons can include:

Batch Processing: You need to fix the page order of thousands of documents.
Dynamic Assembly: You are merging documents and need to ensure the Table of Contents or Appendices are in the correct position.
Correction Logic: You need to reverse pages that were scanned in the wrong order.

Step-by-Step: Reordering PDF Pages in Java

First, you will need to download the JPedal jar. You can get a trial jar from our website.
Next, you need to add JPedal to your Java project. We have lots of guides on our support site for how to add JPedal to different types of projects. For example: how to add JPedal to a maven project.
Finally, you can add the code to reorder pages using the PDF Manipulator class.

// Load the PDF file
final PdfManipulator pdf = new PdfManipulator();
pdf.loadDocument(new File("inputFile.pdf"));

// Move page 1 to just before page 5
pdf.movePage(1, 5);

// Swap pages 3 and 4
pdf.swapPages(3, 4);

// Reverse the order of all pages in the document
pdf.reversePages();

// You can also remove pages
pdf.removePage(new PageRanges("10-20"));

// Apply the queued manipulations and write the file to disk
pdf.apply();
pdf.writeDocument(new File("outputFile.pdf"));
pdf.closeDocument();
pdf.reset();