Java ZIP to PDF

ZIP files are commonly used to compress and package multiple files into a single archive. Converting these files to PDF format can be useful for various purposes such as creating reports, archiving documents, or sharing information in a standardized format. In this tutorial, we’ll explore how to convert a ZIP file into a PDF document using Java.

Why Convert ZIP to PDF?

You may need to convert ZIP files to PDF format for different use cases. Here we are discussing a few reasons for the conversion:

Report Generation: Generate PDF reports by extracting data from ZIP files and presenting them in a formatted document.

Document Archiving: Convert multiple documents or files stored in a ZIP archive into a single PDF for easy archiving and retrieval.

Document Standardization: Convert diverse file formats within a ZIP archive to a uniform PDF format for easier sharing and viewing.

ZIP to PDF Converter - Java Environment Configuration

You have to configure the development environment run the Java code and embed the feature into your system.

  • Ensure that the Java Development Kit (JDK) is installed on your system.
  • Ensure that you have an Integrated Development Environment (IDE) such as IntelliJ IDEA, Apache NetBeans for Java development.
  • Furthermore, download the JAR file of Conholdate.Total for Java or use the following Maven configurations:

Convert ZIP to PDF in Java

The steps below demonstrate how to convert ZIP to PDF in Java:

  • Initialize a ZipInputStream object using the input ZIP file.
  • Specify the output directory where the extracted files will be saved.
  • Iterate through each file in the input ZIP file and extract it to the output directory.
  • Maintain a temporary list to store the names of extracted files from the unzipped folder.
  • Obtain the list of all files (including their full paths) from the unzipped folder.
  • Iterate through each extracted file and convert it to PDF format.
  • Merge the converted PDF files.
  • Create an instance of the Merger class with the first input PDF document from the temporary list.
  • Iterate through the list of converted PDF documents, starting from the second file.
  • Invoke the save method of the Merger class instance to save the merged PDF document.

The following sample code shows how to convert ZIP to PDF in Java:

Free Evaluation License

You can convert ZIP files to PDF format and test other API features to their full capacity by requesting a free temporary license.

Wrapping Up

This article sums up converting a ZIP file to PDF in Java. It involves extracting the files from the ZIP archive, converting them to PDF format, and then merging them into a single PDF document. Moreover, this process can further be automated and customized based on your specific requirements. In case of any ambiguities, please feel free to contact us at forum.


Can I customize the PDF documents generated from ZIP files?

Yes, you can customize the PDF documents generated from ZIP files. You can apply different manipulations like setting the fonts, colors, layouts, and other styling elements to enhance the visual presentation of your PDF documents. You can also add headers, footers, watermarks, and annotations as per your requirements.

Can I convert specific files within a ZIP archive to PDF instead of converting all files?

Yes, you can convert specific files within a ZIP archive to PDF by modifying your Java code accordingly. You can extract specific files based on their names, extensions, or other criteria and then convert only those extracted files to PDF format. This allows for selective conversion and customization based on your requirements.

Is there a way to password-protect the resulting PDF document during conversion?

Yes, you can password-protect the resulting PDF document as the supported features include PDF encryption, setting passwords, permissions, and encryption levels for PDF documents.

See Also