Pressure sealers are automated machines designed to fold and seal pressure-sensitive documents without the need for envelopes. Commonly used for paychecks, invoices, tax forms, and notices, these machines activate pre-applied adhesive strips that securely seal the document during the folding process. Ideal for offices, financial institutions, and mail centers, pressure sealers streamline mailing tasks, reduce costs, and enhance document security. Available in desktop and high-volume models, they offer fast, efficient, and tamper-evident processing for confidential communications.