Split PDF Files in Java

Splitting a PDF into separate files is useful when you need to export each page for review, storage, or downstream processing.

Live Example

Aspose.PDF Splitter is a free online application for testing PDF splitting in a browser.

This example uses the Document class to open a PDF file and iterate through its pages. For each Page, it creates a new document, adds the page to it, and saves the result as a separate PDF file.

To split a PDF into individual page files in Java:

1. Open the source PDF with the Document constructor.
2. Iterate through the Page objects returned by document.getPages().
3. Create a new empty Document for each page.
4. Add the current Page to the new Document.
5. Save the new Document with a unique file name.
6. Close both Document objects when processing is complete.

Split PDF into single-page files

The following Java example is based on SplitDocumentExamples.java and saves pages as Page_1.pdf, Page_2.pdf, and so on.

public static void splitDocument(Path inputFile, Path outputDir) {
    Document document = new Document(inputFile.toString());
    try {
        int pageCount = 1;
        for (Page page : document.getPages()) {
            Document newDocument = new Document();
            try {
                newDocument.getPages().add(page);
                newDocument.save(outputDir.resolve("Page_" + pageCount + ".pdf").toString());
            } finally {
                newDocument.close();
            }
            pageCount++;
        }
    } finally {
        document.close();
    }
}