diff --git a/sticker-creator/src/assets/locales/en/messages.json b/sticker-creator/src/assets/locales/en/messages.json
index e51c9ed78..7bdf90027 100644
--- a/sticker-creator/src/assets/locales/en/messages.json
+++ b/sticker-creator/src/assets/locales/en/messages.json
@@ -308,6 +308,10 @@
     "message": "Link copied",
     "description": "Text for the toast when a link for sharing is copied from the Sticker Creator"
   },
+  "StickerCreator--Toasts--unsupportedFormat": {
+    "message": "Can’t add this image because the format is not supported",
+    "description": "Text for the toast when an image cannot be processed because it uses an unsupported file format"
+  },
   "StickerCreator--StickerPreview--light": {
     "message": "My sticker in light theme",
     "description": "Text for the sticker preview for the light theme"
diff --git a/sticker-creator/src/components/ArtFrame.tsx b/sticker-creator/src/components/ArtFrame.tsx
index a2315e93f..ab7d6637e 100644
--- a/sticker-creator/src/components/ArtFrame.tsx
+++ b/sticker-creator/src/components/ArtFrame.tsx
@@ -38,7 +38,7 @@ export type OnPickEmojiOptions = Readonly<{
   emoji: EmojiData;
 }>;
 
-export type Props = Partial<Pick<DropZoneProps, 'onDrop'>> &
+export type Props = Partial<Pick<DropZoneProps, 'onDrop' | 'onDropRejected'>> &
   Readonly<{
     artType: ArtType;
     id?: string;
@@ -65,6 +65,7 @@ export const ArtFrame = memo(function ArtFrame({
   onRemove,
   onPickEmoji,
   onDrop,
+  onDropRejected,
 }: Props) {
   const i18n = useI18n();
   const [emojiPickerOpen, setEmojiPickerOpen] = useState(false);
@@ -187,10 +188,11 @@ export const ArtFrame = memo(function ArtFrame({
           onMouseLeave={handleMouseEnter}
         />
       ) : null}
-      {mode === 'add' && onDrop ? (
+      {mode === 'add' && onDrop && onDropRejected ? (
         <DropZone
           label={i18n(`StickerCreator--DropStage--dragDrop--${artType}`)}
           onDrop={onDrop}
+          onDropRejected={onDropRejected}
           inner
           onDragActive={setDragActive}
         />
diff --git a/sticker-creator/src/components/ArtGrid.tsx b/sticker-creator/src/components/ArtGrid.tsx
index 586e14d1e..1811d390b 100644
--- a/sticker-creator/src/components/ArtGrid.tsx
+++ b/sticker-creator/src/components/ArtGrid.tsx
@@ -124,12 +124,17 @@ export function ArtGrid({ mode, showGuide }: Props): JSX.Element {
     [dispatch, artType]
   );
 
+  const handleDropRejected = useCallback(() => {
+    dispatch(addToast({ key: 'StickerCreator--Toasts--unsupportedFormat' }));
+  }, [dispatch]);
+
   if (list.length === 0) {
     return (
       <div className={styles.drop}>
         <DropZone
           label={i18n('StickerCreator--DropStage--dragDrop')}
           onDrop={handleDrop}
+          onDropRejected={handleDropRejected}
         />
       </div>
     );
@@ -144,6 +149,7 @@ export function ArtGrid({ mode, showGuide }: Props): JSX.Element {
           showGuide={showGuide}
           mode="add"
           onDrop={handleDrop}
+          onDropRejected={handleDropRejected}
         />
       );
     }
diff --git a/sticker-creator/src/elements/DropZone.tsx b/sticker-creator/src/elements/DropZone.tsx
index 90c7f58bf..26aeb2c4c 100644
--- a/sticker-creator/src/elements/DropZone.tsx
+++ b/sticker-creator/src/elements/DropZone.tsx
@@ -11,8 +11,9 @@ import { useStickerDropzone } from '../util/useStickerDropzone';
 export type Props = {
   readonly inner?: boolean;
   readonly label: string;
-  onDrop(files: ReadonlyArray<File>): unknown;
-  onDragActive?(active: boolean): unknown;
+  onDrop: (files: ReadonlyArray<File>) => void;
+  onDragActive?: (active: boolean) => void;
+  onDropRejected: () => void;
 };
 
 const getClassName = ({ inner }: Props, isDragActive: boolean) => {
@@ -28,7 +29,7 @@ const getClassName = ({ inner }: Props, isDragActive: boolean) => {
 };
 
 export function DropZone(props: Props): JSX.Element {
-  const { inner, label, onDrop, onDragActive } = props;
+  const { inner, label, onDrop, onDragActive, onDropRejected } = props;
   const i18n = useI18n();
 
   const handleDrop = useCallback(
@@ -40,8 +41,10 @@ export function DropZone(props: Props): JSX.Element {
     [onDrop]
   );
 
-  const { getRootProps, getInputProps, isDragActive } =
-    useStickerDropzone(handleDrop);
+  const { getRootProps, getInputProps, isDragActive } = useStickerDropzone(
+    handleDrop,
+    onDropRejected
+  );
 
   useEffect(() => {
     if (onDragActive) {
diff --git a/sticker-creator/src/routes/art/MetaStage.tsx b/sticker-creator/src/routes/art/MetaStage.tsx
index 280768be6..fa480bd58 100644
--- a/sticker-creator/src/routes/art/MetaStage.tsx
+++ b/sticker-creator/src/routes/art/MetaStage.tsx
@@ -11,7 +11,13 @@ import { useStickerDropzone } from '../../util/useStickerDropzone';
 import { H2, Text } from '../../elements/Typography';
 import { LabeledInput } from '../../elements/LabeledInput';
 import { ConfirmModal } from '../../components/ConfirmModal';
-import { setCover, removeImage, setTitle, setAuthor } from '../../slices/art';
+import {
+  setCover,
+  removeImage,
+  setTitle,
+  setAuthor,
+  addToast,
+} from '../../slices/art';
 import {
   useArtType,
   useAllDataValid,
@@ -47,8 +53,14 @@ export function MetaStage(): JSX.Element {
     [dispatch, artType]
   );
 
-  const { getRootProps, getInputProps, isDragActive } =
-    useStickerDropzone(onDrop);
+  const onDropRejected = useCallback(() => {
+    dispatch(addToast({ key: 'StickerCreator--Toasts--errorProcessing' }));
+  }, [dispatch]);
+
+  const { getRootProps, getInputProps, isDragActive } = useStickerDropzone(
+    onDrop,
+    onDropRejected
+  );
 
   const onNext = useCallback(() => {
     setConfirming(true);
diff --git a/sticker-creator/src/util/useStickerDropzone.ts b/sticker-creator/src/util/useStickerDropzone.ts
index 7bb12486e..ac8b4f0ee 100644
--- a/sticker-creator/src/util/useStickerDropzone.ts
+++ b/sticker-creator/src/util/useStickerDropzone.ts
@@ -5,10 +5,12 @@ import type { DropzoneOptions } from 'react-dropzone';
 import { useDropzone } from 'react-dropzone';
 
 export const useStickerDropzone = (
-  onDrop: DropzoneOptions['onDrop']
+  onDrop: NonNullable<DropzoneOptions['onDrop']>,
+  onDropRejected: NonNullable<DropzoneOptions['onDropRejected']>
 ): ReturnType<typeof useDropzone> =>
   useDropzone({
     onDrop,
+    onDropRejected,
     accept: {
       'image/png': ['.png'],
       'image/webp': ['.webp'],