How to convert all content of a composable to Bitmap in Android Jetpack compose?

I am trying to convert all the content of a LazyColumn to bitmap, and then export it to a pdf file.

I did find this library to take screenshots of what is showing but not for all the content. Content that was not showing is not included. So I also try to draw canvas instead, but we can not apply all styles of the content (like a markdown, custom background,...) So I am thinking that we can have a custom native Android View, it may be possible to do it, but I can't find a way to pass a composable into it.

So anyone done that before or has a solution for this?

Edit 1: I did try to use draw content in compose graphics alpha-02, but the content in the LazyColumn was unable to scroll:

    onDrawWithContent {
        val pictureCanvas = Canvas(picture.beginRecording(width, height))

        draw(this, this.layoutDirection, pictureCanvas, this.size) {
////
        }
        picture.endRecording()

        drawIntoCanvas { canvas -> canvas.nativeCanvas.drawPicture(picture) }
      }

I had the same requirement like you and wanted to be able to achieve capturing all screen. So I was able to achieve this inside a scrollable view with Capturable

The component which needs to be captured should be placed inside Capturable composable as follows:

@Composable
fun TicketScreen() {
    // I was able to capture the full width of the composable which was not visible on the screen with a scroll modifier on top of the Capturable for example:
    Column(modifier = Modifier.horizontalScroll(rememberScrollState())) {
        Capturable(
            modifier = Modifier,
            controller = controller,
            onCaptured = { bitmap, error ->
                if (state.printVides) {
                    onEvent(ScanPrintEvent.SetImageBitmapVides(bitmap?.asAndroidBitmap()))
                } else {
                    onEvent(ScanPrintEvent.SetImageBitmapNormal(bitmap?.asAndroidBitmap()))
                }
            }
        ) {
           YourComposable()
        }
    }
}