Softaken Compress PST Software to reduce large PST files. It compresses or removes unnecessary email attachments to safely reduce the size of these files without putting users at risk of data loss or damage. Whether you're a home user dealing with a growing mailbox or an IT professional managing company-wide Outlook data, this software provides a simple and effective way to save disk space and streamline email management. It’s fully compatible with both ANSI and UNICODE PST formats and supports all versions of Microsoft Outlook — from the latest Outlook 2019 to older versions like 2013, 2010, and beyond. Even if you don’t have a technical background, the step-by-step process makes compressing PST files straightforward. Users can choose how they want to handle attachments — either compress them within the emails or move them to a separate folder, giving them full control over their data and storage.