Update: This issue still reproduces on the iOS 27.2 beta simulator when the app is built with Xcode 27.2 beta (iOS 27.2 SDK). With the same code (16-bpc image drawn in a PDFAnnotation subclass, then dataRepresentation()), the saved PDF is still corrupt: the image is declared as /BitsPerComponent 16 but contains only 8-bpc data, and the drawing is squeezed into the upper half of the page after reopening. So rebuilding with the latest SDK does not change the behavior. (The original issue on iOS 27.0 was confirmed on physical iPad devices; the 27.2 beta result is from the simulator.) The 8-bpc workaround (preferredRange = .standard) still works on the 27.2 beta simulator. I'm still looking for a way to keep 16-bpc output, if anyone has ideas. Feedback: FB25195006