DocuGard Security Paper Letter 8 12 x 11 500 Ream Blue Tamperresistant medical security paper prevents unauthorized copies and safeguards confidential documents Use for prescription pads, MRIs, CAT Scans and medical tests Advanced medical security paper offers seven security features to prevent copying, erasure and counterfeiting Pantograph prints VOID on the front when duplicated Printed watermarks on back can be seen when held up to a light source Coinreactive ink on back side changes color when scratched with a coin Microtext borders contain the DocuGard product name and are difficult to copy The erasureresistant background prevents erasure Heatsensitive thermochromatic ink with Rx symbol disappears when subject to touch or heat from a copier The Security Listing on the sheet is also designed to prevent counterfeiting Paper exceeds federal guidelines set by the Centers for Medicare and Medicaid Services CMS to reduce the risk of fraud