jOfficeConvert - Use jOfficeConvert Java PDF SDK to convert MS Word and Excel documents to PDF or images, or print documents automatically from your Java applications.
JSignPdf - JSignPdf is a Java application which adds digital signatures to PDF documents.
Birdie XLSX to XLS Converter - Convert huge bundles of XLSX files to XLS by using the batch mode conversion option of XLSX to LXS Converter.
PDF Automation Server - Streamline document workflows and circulation in your organization with PDF Automation Server.
jPDFPreflight - jPDFPreflight Java PDF SDK is a Java library to verify PDF compliance with different standards, including PDF/UA, PDF/A and PDF/X and to convert documents to these standards.
jPDFProcess - jPDFProcess Java PDF SDK is a Java PDF Library used to create and manipulate with PDF documents that can be used to deliver customized PDF content to your users or to process incoming PDF content.