diff --git a/packages/text-annotator-react/src/TextAnnotationPopup/TextAnnotationPopup.tsx b/packages/text-annotator-react/src/TextAnnotationPopup/TextAnnotationPopup.tsx
index 6372624c..f452359a 100644
--- a/packages/text-annotator-react/src/TextAnnotationPopup/TextAnnotationPopup.tsx
+++ b/packages/text-annotator-react/src/TextAnnotationPopup/TextAnnotationPopup.tsx
@@ -2,7 +2,7 @@ import { ReactNode, useEffect, useMemo, useRef, useState } from 'react';
 import { useAnnotator, useSelection } from '@annotorious/react';
 import {
   NOT_ANNOTATABLE_CLASS,
-  denormalizeRectWithOffset,
+  toViewportBounds,
   toDomRectList,
   type TextAnnotation,
   type TextAnnotator,
@@ -104,13 +104,13 @@ export const TextAnnotationPopup = (props: TextAnnotationPopupProps) => {
         getBoundingClientRect: () => {
           const bounds = r.state.store.getAnnotationBounds(annotation.id);
           return bounds
-            ? denormalizeRectWithOffset(bounds, r.element.getBoundingClientRect())
+            ? toViewportBounds(bounds, r.element.getBoundingClientRect())
             : new DOMRect();
         },
         getClientRects: () => {
           const rects = r.state.store.getAnnotationRects(annotation.id);
           const denormalizedRects = rects.map((rect) =>
-            denormalizeRectWithOffset(rect, r.element.getBoundingClientRect())
+            toViewportBounds(rect, r.element.getBoundingClientRect())
           );
           return toDomRectList(denormalizedRects);
         }
diff --git a/packages/text-annotator/src/state/spatialTree.ts b/packages/text-annotator/src/state/spatialTree.ts
index 118ba853..d742fb5f 100644
--- a/packages/text-annotator/src/state/spatialTree.ts
+++ b/packages/text-annotator/src/state/spatialTree.ts
@@ -5,7 +5,7 @@ import {
   isRevived,
   reviveSelector,
   mergeClientRects,
-  normalizeRectWithOffset
+  toParentBounds
 } from '../utils';
 import type { AnnotationRects } from './TextAnnotationStore';
 
@@ -46,7 +46,7 @@ export const createSpatialTree = <T extends TextAnnotation>(store: Store<T>, con
      * Offset the merged client rects so that coords
      * are relative to the parent container
      */
-    const merged = mergeClientRects(rects).map(rect => normalizeRectWithOffset(rect, offset));
+    const merged = mergeClientRects(rects).map(rect => toParentBounds(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 5d536dd2..599fc737 100644
--- a/packages/text-annotator/src/utils/index.ts
+++ b/packages/text-annotator/src/utils/index.ts
@@ -14,4 +14,4 @@ export * from './reviveSelector';
 export * from './reviveTarget';
 export * from './splitAnnotatableRanges';
 export * from './trimRangeToContainer';
-
+export * from './rectsToBounds';
diff --git a/packages/text-annotator/src/utils/normalizeRects.ts b/packages/text-annotator/src/utils/rectsToBounds.ts
similarity index 60%
rename from packages/text-annotator/src/utils/normalizeRects.ts
rename to packages/text-annotator/src/utils/rectsToBounds.ts
index 461f222f..ba9fd14a 100644
--- a/packages/text-annotator/src/utils/normalizeRects.ts
+++ b/packages/text-annotator/src/utils/rectsToBounds.ts
@@ -1,9 +1,9 @@
-export const normalizeRectWithOffset = (rect: DOMRect, offset: DOMRect): DOMRect => {
+export const toParentBounds = (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 => {
+export const toViewportBounds = (rect: DOMRect, offset: DOMRect): DOMRect => {
   const { left, top, right, bottom } = rect;
   return new DOMRect(left + offset.left, top + offset.top, right - left, bottom - top);
 }