Compress PDF via Java

PDF compression programmatically using Aspose.PDF for Java Library

Optimize PDF with Java

Do you need to compress PDF? Programmatic modification of PDF documents is an essential part of modern digital workflows. With Java libraries like Aspose.PDF – are stand-alone solutions that don’t rely on other software and are ready for commercial use. They cover all possible needs of professional Java developers.

This Java library enables developers to compress PDF documents in a fast and efficient manner through programming. With this library, you can easily produce optimized PDF output for printing, archiving, or network sharing. It is a standalone solution for processing PDF documents in Java that does not require the installation of any third-party software.

In order to compress PDF file, we’ll use Aspose.PDF for Java API which is a feature-rich, powerful, and easy-to-use conversion API for the Java platform. You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.


    <name>Aspose Java AP</name>


<version>version of aspose-pdf API</version>

How to Compress PDF via Java

You need Aspose.PDF for Java to try the code in your environment.

  1. Open a PDF document using Document object.
  2. Call the method for optimization on the document object, which removes unnecessary objects and compresses images in the PDF file
  3. Save the optimized document to the new path using the Save() method.

If you want to make it easier and faster to share or store a PDF file, compressing it can help. With this powerful Aspose.PDF Java library, you can reduce the size of your PDF while keeping its quality and important details intact. This professional tool uses Java to compress PDF effectively. The following example demonstrates how to modify a PDF document in Java:

Compress PDF Files - Java

This sample code shows how to Optimize PDF Document for the Web - Java

Input file:

File not added

Output format:


Output file:

	public class ExampleOptimize {

    private static String _dataDir = "/home/admin1/pdf-examples/Samples/";

    public static void OptimizePDFDocumentForTheWeb() {

        // Open document
        Document pdfDocument = new Document(_dataDir + "sample.pdf");

        // Optimize for web

        // Save output document + "OptimizeDocument_out.pdf");

About Aspose.PDF for Java API

Aspose.PDF for Java API is a library that enables developers to add PDF processing capabilities to their applications. It can be used to build any type of 32-bit and 64-bit applications to generate or read, convert and manipulate PDF files without the use of Adobe Acrobat. Aspose.PDF for Java allows developers to insert tables, graphs, images, hyperlinks, custom fonts - and more - into PDF documents. Moreover, it is also possible to compress PDF. Aspose.PDF for Java provides excellent security features to develop secure PDF files.

You can find more information about Aspose.PDF for Java API on documentation and examples on how to use API. Some of the key features of Aspose.PDF for Java API include support for various file formats including HTML, XFA, TXT, PCL, XML, XPS and image file formats, support for various PDF versions, and extensive hyperlink functionality.