diff --git a/packages/text-annotator-react/src/TextAnnotatorPopup/TextAnnotatorPopup.tsx b/packages/text-annotator-react/src/TextAnnotatorPopup/TextAnnotatorPopup.tsx
index 3a3272e0..4b04d1c4 100644
--- a/packages/text-annotator-react/src/TextAnnotatorPopup/TextAnnotatorPopup.tsx
+++ b/packages/text-annotator-react/src/TextAnnotatorPopup/TextAnnotatorPopup.tsx
@@ -1,6 +1,5 @@
 import { PointerEvent, ReactNode, useCallback, useEffect, useMemo, useState } from 'react';
-import { useAnnotator, useSelection } from '@annotorious/react';
-import type { TextAnnotation, TextAnnotator } from '@recogito/text-annotator';
+
 import { isMobile } from './isMobile';
 import {
   autoUpdate,
@@ -16,6 +15,14 @@ import {
   useRole
 } from '@floating-ui/react';
 
+import { useAnnotator, useSelection } from '@annotorious/react';
+import {
+  denormalizeRectWithOffset,
+  toDomRectList,
+  type TextAnnotation,
+  type TextAnnotator,
+} from '@recogito/text-annotator';
+
 import './TextAnnotatorPopup.css';
 
 interface TextAnnotationPopupProps {
@@ -73,31 +80,36 @@ export const TextAnnotatorPopup = (props: TextAnnotationPopupProps) => {
   useEffect(() => {
     setOpen(
       // Selected annotation exists and has a selector?
-      annotation?.target.selector && 
+      annotation?.target.selector &&
       // Selector not empty? (Annotations from plugins, general defensive programming)
-      annotation.target.selector.length > 0 && 
-      // Range not collapsed? (E.g. lazy loading PDFs. Note that this will have to 
+      annotation.target.selector.length > 0 &&
+      // Range not collapsed? (E.g. lazy loading PDFs. Note that this will have to
       // change if we switch from ranges to pre-computed bounds!)
       !annotation.target.selector[0].range.collapsed
     );
   }, [annotation]);
 
   useEffect(() => {
-    if (isOpen && annotation) {
-      const {
-        target: {
-          selector: [{ range }]
-        }
-      } = annotation;
+    if (!r) return;
 
+    if (isOpen && annotation?.id) {
       refs.setPositionReference({
-        getBoundingClientRect: () => range.getBoundingClientRect(),
-        getClientRects: () => range.getClientRects()
+        getBoundingClientRect: () => denormalizeRectWithOffset(
+          r.state.store.getAnnotationBounds(annotation.id),
+          r.element.getBoundingClientRect()
+        ),
+        getClientRects: () => {
+          const rects = r.state.store.getAnnotationRects(annotation.id);
+          const denormalizedRects = rects.map(
+            rect => denormalizeRectWithOffset(rect, r.element.getBoundingClientRect())
+          );
+          return toDomRectList(denormalizedRects);
+        }
       });
     } else {
       refs.setPositionReference(null);
     }
-  }, [isOpen, annotation, refs]);
+  }, [isOpen, annotation?.id, annotation?.target, r]);
 
   useEffect(() => {
     const config: MutationObserverInit = { attributes: true, childList: true, subtree: true };
@@ -154,4 +166,4 @@ export const TextAnnotatorPopup = (props: TextAnnotationPopupProps) => {
     </FloatingPortal>
   ) : null;
 
-}
\ No newline at end of file
+}
diff --git a/packages/text-annotator/src/state/TextAnnotationStore.ts b/packages/text-annotator/src/state/TextAnnotationStore.ts
index 7b81e2b1..b03da8ad 100644
--- a/packages/text-annotator/src/state/TextAnnotationStore.ts
+++ b/packages/text-annotator/src/state/TextAnnotationStore.ts
@@ -11,7 +11,9 @@ export interface TextAnnotationStore<T extends TextAnnotation = TextAnnotation>
 
   bulkUpsertAnnotations(annotations: T[], origin?: Origin): T[];
 
-  getAnnotationBounds(id: string, hintX?: number, hintY?: number, buffer?: number): DOMRect;
+  getAnnotationRects(id: string): DOMRect[];
+
+  getAnnotationBounds(id: string, hintX?: number, hintY?: number, buffer?: number): DOMRect | undefined;
 
   getAnnotationRects(id: string): DOMRect[];
 
diff --git a/packages/text-annotator/src/state/TextAnnotatorState.ts b/packages/text-annotator/src/state/TextAnnotatorState.ts
index 710f22ff..5cb5a4ab 100644
--- a/packages/text-annotator/src/state/TextAnnotatorState.ts
+++ b/packages/text-annotator/src/state/TextAnnotatorState.ts
@@ -13,7 +13,7 @@ import type {
 } from '@annotorious/core';
 import { createSpatialTree } from './spatialTree';
 import type { TextAnnotation, TextAnnotationTarget } from '../model';
-import type { TextAnnotationStore } from './TextAnnotationStore';
+import type { AnnotationRects, TextAnnotationStore } from './TextAnnotationStore';
 import { isRevived, reviveAnnotation, reviveTarget } from '../utils';
 
 export interface TextAnnotatorState<I extends TextAnnotation = TextAnnotation, E extends unknown = TextAnnotation> extends AnnotatorState<I, E> {
@@ -117,7 +117,7 @@ export const createTextAnnotatorState = <I extends TextAnnotation = TextAnnotati
     return filtered.length > 0 ? filtered[0] : undefined;
   }
 
-  const getAnnotationBounds = (id: string, x?: number, y?: number, buffer = 5): DOMRect => {
+  const getAnnotationBounds = (id: string, x?: number, y?: number, buffer = 5): DOMRect | undefined => {
     const rects = tree.getAnnotationRects(id);
     if (rects.length === 0) return;
 
@@ -132,6 +132,13 @@ export const createTextAnnotatorState = <I extends TextAnnotation = TextAnnotati
     return tree.getAnnotationBounds(id);
   }
 
+  const getIntersecting = (
+    minX: number,
+    minY: number,
+    maxX: number,
+    maxY: number,
+  ): AnnotationRects<I>[] => tree.getIntersecting(minX, minY, maxX, maxY);
+
   const getAnnotationRects = (id: string): DOMRect[] => tree.getAnnotationRects(id);
 
   const recalculatePositions = () => tree.recalculate();
@@ -160,8 +167,8 @@ export const createTextAnnotatorState = <I extends TextAnnotation = TextAnnotati
       bulkUpsertAnnotations,
       getAnnotationBounds,
       getAnnotationRects,
+      getIntersecting,
       getAt,
-      getIntersecting: tree.getIntersecting,
       recalculatePositions,
       updateTarget
     },
diff --git a/packages/text-annotator/src/state/spatialTree.ts b/packages/text-annotator/src/state/spatialTree.ts
index 25e7582d..07da5110 100644
--- a/packages/text-annotator/src/state/spatialTree.ts
+++ b/packages/text-annotator/src/state/spatialTree.ts
@@ -1,8 +1,12 @@
 import RBush from 'rbush';
 import type { Store } from '@annotorious/core';
 import type { TextAnnotation, TextAnnotationTarget } from '../model';
-import { isRevived, mergeClientRects } from '../utils';
-import { reviveSelector } from '../utils';
+import {
+  isRevived,
+  reviveSelector,
+  mergeClientRects,
+  normalizeRectWithOffset
+} from '../utils';
 import type { AnnotationRects } from './TextAnnotationStore';
 
 interface IndexedHighlightRect {
@@ -38,11 +42,11 @@ export const createSpatialTree = <T extends TextAnnotation>(store: Store<T>, con
       return Array.from(revivedRange.getClientRects());
     });
 
-    const merged = mergeClientRects(rects)
-      // Offset the merged client rects so that coords
-      // are relative to the parent container
-      .map(({ left, top, right, bottom }) =>  
-        new DOMRect(left - offset.left, top - offset.top, right - left, bottom - top));
+    /**
+     * Offset the merged client rects so that coords
+     * are relative to the parent container
+     */
+    const merged = mergeClientRects(rects).map(rect => normalizeRectWithOffset(rect, offset));
 
     return merged.map(rect => {
       const { x, y, width, height } = rect;
diff --git a/packages/text-annotator/src/utils/index.ts b/packages/text-annotator/src/utils/index.ts
index fe84a63b..4b09af3b 100644
--- a/packages/text-annotator/src/utils/index.ts
+++ b/packages/text-annotator/src/utils/index.ts
@@ -14,4 +14,5 @@ export * from './reviveTarget';
 export * from './splitAnnotatableRanges';
 export * from './trimRangeToContainer';
 export * from './cloneEvents';
+export * from './normalizeRects';
 
diff --git a/packages/text-annotator/src/utils/mergeClientRects.ts b/packages/text-annotator/src/utils/mergeClientRects.ts
index cd7bed62..bb08631f 100644
--- a/packages/text-annotator/src/utils/mergeClientRects.ts
+++ b/packages/text-annotator/src/utils/mergeClientRects.ts
@@ -65,7 +65,7 @@ const union = (a: DOMRect, b: DOMRect): DOMRect => {
   return new DOMRect(left, top, right - left, bottom - top);
 }
 
-export const mergeClientRects = (rects: DOMRect[]) => rects.reduce((merged, rectA) => {
+export const mergeClientRects = (rects: DOMRect[]) => rects.reduce<DOMRect[]>((merged, rectA) => {
   // Some browser report empty rects - discard
   if (rectA.width === 0 || rectA.height === 0)
     return merged;
@@ -102,7 +102,16 @@ export const mergeClientRects = (rects: DOMRect[]) => rects.reduce((merged, rect
   }
 
   return wasMerged ? next : [ ...next, rectA ];
-}, [] as DOMRect[]);
+}, []);
+
+export const toDomRectList = (rects: DOMRect[]): DOMRectList => ({
+  length: rects.length,
+  item: (index) => rects[index],
+  [Symbol.iterator]: function* (): ArrayIterator<DOMRect> {
+    for (let i = 0; i < this.length; i++)
+      yield this.item(i)!;
+  }
+})
 
 /* Pixels that rects can be apart vertically while still
 // being considered to be on the same line.
@@ -142,7 +151,7 @@ export const mergeClientRects = (rects: DOMRect[]) => {
   }).filter(r => r.height > 0 && r.width > 0);
 
   // Checks if the given rect contains any other rects
-  const containsOthers = (rect: DOMRect) => mergedRects.some(other => 
+  const containsOthers = (rect: DOMRect) => mergedRects.some(other =>
     other !== rect &&
     other.left >= rect.left &&
     other.right <= rect.right &&
diff --git a/packages/text-annotator/src/utils/normalizeRects.ts b/packages/text-annotator/src/utils/normalizeRects.ts
new file mode 100644
index 00000000..461f222f
--- /dev/null
+++ b/packages/text-annotator/src/utils/normalizeRects.ts
@@ -0,0 +1,9 @@
+export const normalizeRectWithOffset = (rect: DOMRect, offset: DOMRect): DOMRect => {
+  const { left, top, right, bottom } = rect;
+  return new DOMRect(left - offset.left, top - offset.top, right - left, bottom - top);
+};
+
+export const denormalizeRectWithOffset = (rect: DOMRect, offset: DOMRect): DOMRect => {
+  const { left, top, right, bottom } = rect;
+  return new DOMRect(left + offset.left, top + offset.top, right - left, bottom - top);
+}