diff --git a/crates/desktop/artcraft/src/core/utils/mod.rs b/crates/desktop/artcraft/src/core/utils/mod.rs
index f3ac67fd4c..5ea5eb93de 100644
--- a/crates/desktop/artcraft/src/core/utils/mod.rs
+++ b/crates/desktop/artcraft/src/core/utils/mod.rs
@@ -11,4 +11,5 @@ pub mod save_base64_image_to_temp_dir;
 pub mod simple_http_download;
 pub mod simple_http_download_to_tempfile;
 pub mod task_database_pending_statuses;
+pub mod upload_bytes_to_media_file;
 pub mod window;
\ No newline at end of file
diff --git a/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/mod.rs b/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/mod.rs
new file mode 100644
index 0000000000..9f4a49e121
--- /dev/null
+++ b/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/mod.rs
@@ -0,0 +1,2 @@
+pub mod upload_image_bytes_as_media_file;
+pub mod upload_mask_image_bytes_as_media_file;
diff --git a/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/upload_image_bytes_as_media_file.rs b/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/upload_image_bytes_as_media_file.rs
new file mode 100644
index 0000000000..a188d84e9f
--- /dev/null
+++ b/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/upload_image_bytes_as_media_file.rs
@@ -0,0 +1,37 @@
+use log::info;
+
+use artcraft_client::credentials::storyteller_credential_set::StorytellerCredentialSet;
+use artcraft_client::endpoints::media_files::upload_image_media_file_from_bytes::{
+  upload_image_media_file_from_bytes, ImageType, UploadImageBytesArgs,
+};
+use artcraft_client::utils::api_host::ApiHost;
+use tokens::tokens::media_files::MediaFileToken;
+
+use crate::core::commands::enqueue::generate_error::GenerateError;
+
+/// Upload raw image bytes to ArtCraft, returning the resulting MediaFileToken.
+///
+/// This is NOT marked as an intermediate system file — the image will appear
+/// in the user's gallery.
+pub async fn upload_image_bytes_as_media_file(
+  creds: &StorytellerCredentialSet,
+  api_host: &ApiHost,
+  image_bytes: Vec<u8>,
+) -> Result<MediaFileToken, GenerateError> {
+  info!("Uploading image bytes ({} bytes) as media file...", image_bytes.len());
+
+  let result = upload_image_media_file_from_bytes(UploadImageBytesArgs {
+    api_host,
+    maybe_creds: Some(creds),
+    image_bytes,
+    image_type: ImageType::Png,
+    is_intermediate_system_file: false,
+  }).await.map_err(|err| {
+    log::error!("Failed to upload image bytes as media file: {:?}", err);
+    GenerateError::from(err)
+  })?;
+
+  info!("Uploaded image bytes as media file: {}", result.media_file_token.as_str());
+
+  Ok(result.media_file_token)
+}
diff --git a/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/upload_mask_image_bytes_as_media_file.rs b/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/upload_mask_image_bytes_as_media_file.rs
new file mode 100644
index 0000000000..d913af68a7
--- /dev/null
+++ b/crates/desktop/artcraft/src/core/utils/upload_bytes_to_media_file/upload_mask_image_bytes_as_media_file.rs
@@ -0,0 +1,47 @@
+use log::{error, info};
+
+use artcraft_client::credentials::storyteller_credential_set::StorytellerCredentialSet;
+use artcraft_client::endpoints::media_files::upload_image_media_file_from_bytes::{
+  upload_image_media_file_from_bytes, ImageType, UploadImageBytesArgs,
+};
+use artcraft_client::utils::api_host::ApiHost;
+use images::mask_images::normalize_image_bytes_to_flux_mask::normalize_image_bytes_to_flux_mask;
+use tokens::tokens::media_files::MediaFileToken;
+
+use crate::core::commands::enqueue::generate_error::GenerateError;
+
+/// Upload raw mask image bytes to ArtCraft, returning the resulting MediaFileToken.
+///
+/// The mask bytes are first normalized via `normalize_image_bytes_to_flux_mask`
+/// (transparent pixels → black/ignore, opaque pixels → white/interest region),
+/// then uploaded as an intermediate system file (hidden from the user's gallery).
+pub async fn upload_mask_image_bytes_as_media_file(
+  creds: &StorytellerCredentialSet,
+  api_host: &ApiHost,
+  mask_image_bytes: &[u8],
+) -> Result<MediaFileToken, GenerateError> {
+  info!("Normalizing mask image bytes ({} bytes)...", mask_image_bytes.len());
+
+  let normalized = normalize_image_bytes_to_flux_mask(mask_image_bytes)
+    .map_err(|err| {
+      error!("Failed to normalize mask image bytes: {:?}", err);
+      GenerateError::AnyhowError(anyhow::anyhow!("Failed to normalize mask image bytes"))
+    })?;
+
+  info!("Uploading normalized mask ({} bytes) as intermediate system file...", normalized.0.len());
+
+  let result = upload_image_media_file_from_bytes(UploadImageBytesArgs {
+    api_host,
+    maybe_creds: Some(creds),
+    image_bytes: normalized.0,
+    image_type: ImageType::Png,
+    is_intermediate_system_file: true,
+  }).await.map_err(|err| {
+    error!("Failed to upload mask image bytes: {:?}", err);
+    GenerateError::from(err)
+  })?;
+
+  info!("Uploaded mask as media file: {}", result.media_file_token.as_str());
+
+  Ok(result.media_file_token)
+}