diff --git a/web/vue-app/src/components/ImagePicker.vue b/web/vue-app/src/components/ImagePicker.vue
index 4202318..4f5b86f 100644
--- a/web/vue-app/src/components/ImagePicker.vue
+++ b/web/vue-app/src/components/ImagePicker.vue
@@ -34,20 +34,24 @@ const addFromLocal = () => {
   fileInput.value?.click()
 }
 
-const onFileChange = (event: Event) => {
+const onFileChange = async (event: Event) => {
   const files = (event.target as HTMLInputElement).files
   if (files && files.length > 0) {
     const file = files[0]
     if (localImageUrl.value) URL.revokeObjectURL(localImageUrl.value)
-    const url = URL.createObjectURL(file)
+    const { blob, url } = await resizeImageFile(file, 512)
     localImageUrl.value = url
     const idx = availableImages.value.findIndex((img) => img.id === 'local-upload')
     if (idx === -1) {
-      availableImages.value.unshift({ id: 'local-upload', url }) // <-- use unshift
+      availableImages.value.unshift({ id: 'local-upload', url })
     } else {
       availableImages.value[idx].url = url
     }
-    emit('add-image', { id: 'local-upload', url, file })
+    emit('add-image', {
+      id: 'local-upload',
+      url,
+      file: new File([blob], file.name, { type: 'image/png' }),
+    })
     emit('update:modelValue', 'local-upload')
   }
 }
@@ -90,36 +94,15 @@ const takePhoto = async () => {
 const confirmPhoto = async () => {
   if (capturedImageUrl.value) {
     if (localImageUrl.value) URL.revokeObjectURL(localImageUrl.value)
-    const img = new window.Image()
-    img.src = capturedImageUrl.value
-    await new Promise((resolve) => {
-      img.onload = resolve
-    })
-    let { width, height } = img
-    const maxDim = 512
-    if (width > maxDim || height > maxDim) {
-      if (width > height) {
-        height = Math.round((height * maxDim) / width)
-        width = maxDim
-      } else {
-        width = Math.round((width * maxDim) / height)
-        height = maxDim
-      }
-    }
-    const canvas = document.createElement('canvas')
-    canvas.width = width
-    canvas.height = height
-    const ctx = canvas.getContext('2d')
-    ctx?.drawImage(img, 0, 0, width, height)
-    const blob: Blob = await new Promise((resolve) =>
-      canvas.toBlob((b) => resolve(b!), 'image/png'),
-    )
-    const url = URL.createObjectURL(blob)
+    // Convert dataURL to Blob
+    const res = await fetch(capturedImageUrl.value)
+    const originalBlob = await res.blob()
+    const { blob, url } = await resizeImageFile(originalBlob, 512)
     localImageUrl.value = url
     cameraFile.value = new File([blob], 'camera.png', { type: 'image/png' })
     const idx = availableImages.value.findIndex((img) => img.id === 'local-upload')
     if (idx === -1) {
-      availableImages.value.unshift({ id: 'local-upload', url }) // <-- use unshift
+      availableImages.value.unshift({ id: 'local-upload', url })
     } else {
       availableImages.value[idx].url = url
     }
@@ -190,6 +173,37 @@ onMounted(async () => {
     loadingImages.value = false
   }
 })
+
+async function resizeImageFile(
+  file: File | Blob,
+  maxDim = 512,
+): Promise<{ blob: Blob; url: string }> {
+  const img = new window.Image()
+  const url = URL.createObjectURL(file)
+  img.src = url
+  await new Promise((resolve) => {
+    img.onload = resolve
+  })
+
+  let { width, height } = img
+  if (width > maxDim || height > maxDim) {
+    if (width > height) {
+      height = Math.round((height * maxDim) / width)
+      width = maxDim
+    } else {
+      width = Math.round((width * maxDim) / height)
+      height = maxDim
+    }
+  }
+  const canvas = document.createElement('canvas')
+  canvas.width = width
+  canvas.height = height
+  const ctx = canvas.getContext('2d')
+  ctx?.drawImage(img, 0, 0, width, height)
+  const blob: Blob = await new Promise((resolve) => canvas.toBlob((b) => resolve(b!), 'image/png'))
+  URL.revokeObjectURL(url)
+  return { blob, url: URL.createObjectURL(blob) }
+}
 </script>
 
 <template>