# CGPDFScannerPopNumber(_:_:) Retrieves a real value object from the scanner stack. ``` func CGPDFScannerPopNumber(_ scanner: CGPDFScannerRef, _ value: UnsafeMutablePointer?) -> Bool ``` ## Parameters `scanner` A valid scanner object. `value` On output, points to the real value object popped from the scanner stack. ## Return Value if the real value is retrieved successfully; otherwise, . ## Discussion The number retrieved from the scanner can be a real value or an integer value. However, the result is always converted to a value of type [`CGPDFReal`](/documentation/CoreGraphics/CGPDFReal). --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)