PDFAnnotation not rendered properly on iOS27

I'm developing an iPad app where I want to annotate things on a pdf. I subclassed PDFAnnotation to drag text on a pdf. When I use Xcode 26 everything is working fine and everything is rendered perfect. But when I run the same code with Xcode 27 on iOS27 I get a pixelated annotation.

iOS26

iOS27

The code:

import UIKit

final class ManualPlacementPreviewAnnotation: PDFAnnotation, DraggablePreviewAnnotation {
    private let text: String
    private let textFont: UIFont
    private let textColor: UIColor
    var isGrabbed = false

    init(bounds: CGRect, text: String, font: UIFont, color: UIColor) {
        self.text = text
        self.textFont = font
        self.textColor = color
        super.init(
            bounds: bounds.insetBy(dx: -PreviewAnnotationChrome.padding, dy: -PreviewAnnotationChrome.padding),
            forType: .freeText,
            withProperties: nil
        )
    }

    required init?(coder: NSCoder) {
        text = ""
        textFont = .systemFont(ofSize: 12)
        textColor = .black
        super.init(coder: coder)
    }

    override func draw(with box: PDFDisplayBox, in context: CGContext) {
        context.saveGState()

        context.translateBy(x: 0, y: bounds.minY + bounds.maxY)
        context.scaleBy(x: 1, y: -1)

        let content = contentBounds

        UIGraphicsPushContext(context)
        NSAttributedString(string: text, attributes: [
            .font: textFont,
            .foregroundColor: textColor,
        ]).draw(in: content)
        UIGraphicsPopContext()

        PreviewAnnotationChrome.draw(context, around: content, grabbed: isGrabbed)

        context.restoreGState()
    }
}

Is this a bug in iOS27 or am I doing something wrong?

I'm seeing the exact same regression. My custom PDFAnnotation subclass overrides draw(with:in:) to draw a hand-drawn vector stroke (UIBezierPath) plus a CGImage icon via context.draw(_:in:). Same code renders perfectly sharp on iOS 26 and earlier, but on iOS 27 it's visibly blurry/pixelated in PDFView — even at default zoom, no pinch needed.

PDFAnnotation not rendered properly on iOS27
 
 
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