Hi I have this CustomRelativeLayout in a PDFViewerCtrl in an Android Xamarin project:
<pdftron.PDF.Tools.CustomRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="250dp"
android:layout_height="250dp"
app:posX="50"
app:posY="150"
app:pageNum="1"
android:background="#33AFAFFF"
app:zoomWithParent="true">
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/holo_red_dark" />
</pdftron.PDF.Tools.CustomRelativeLayout>
When it gets rendered I see this: 
A 50*150 rectangle in pos x=50 y=150. But what I'd expect is to draw a 250x250 rectangle at page position x=50 y=150. Is there anything I'm not considering or I'm doing wrong? I'd like to expand the RelativeLayout to match the Parent PDFPage ideally.
Thanks.
You can update your layout to
Then, update code:
Note all points must be specified in page coordinate.
You will see: