diff --git a/backend/sync_server/src/app_state/database.rs b/backend/sync_server/src/app_state/database.rs
index 1e26e142..2ef03ba1 100644
--- a/backend/sync_server/src/app_state/database.rs
+++ b/backend/sync_server/src/app_state/database.rs
@@ -135,8 +135,7 @@ impl Database {
         vault: &VaultId,
         transaction: Option<&mut Transaction<'_>>,
     ) -> Result<Vec<DocumentVersionWithoutContent>> {
-        let query = sqlx::query_as!(
-            DocumentVersionWithoutContent,
+        let query = sqlx::query!(
             r#"
             select
                 vault_update_id,
@@ -145,7 +144,8 @@ impl Database {
                 updated_date as "updated_date: chrono::DateTime<Utc>",
                 is_deleted,
                 user_id,
-                device_id
+                device_id,
+                length(content) as "content_size: u64"
             from latest_document_versions
             order by vault_update_id
             "#,
@@ -159,6 +159,22 @@ impl Database {
                 .await
         }
         .context("Cannot fetch latest documents")
+        .map(|rows| {
+            rows.into_iter()
+                .map(|row| DocumentVersionWithoutContent {
+                    vault_update_id: row.vault_update_id,
+                    document_id: row.document_id.into(),
+                    relative_path: row.relative_path,
+                    updated_date: row.updated_date,
+                    is_deleted: row.is_deleted,
+                    user_id: row.user_id,
+                    device_id: row.device_id,
+                    content_size: row
+                        .content_size
+                        .expect("Content size can't be null but sqlx can't infer it"),
+                })
+                .collect()
+        })
     }
 
     /// Return the latest state of all documents (including deleted) in the
@@ -169,8 +185,7 @@ impl Database {
         vault_update_id: VaultUpdateId,
         transaction: Option<&mut Transaction<'_>>,
     ) -> Result<Vec<DocumentVersionWithoutContent>> {
-        let query = sqlx::query_as!(
-            DocumentVersionWithoutContent,
+        let query = sqlx::query!(
             r#"
             select
                 vault_update_id,
@@ -179,7 +194,8 @@ impl Database {
                 updated_date as "updated_date: chrono::DateTime<Utc>",
                 is_deleted,
                 user_id,
-                device_id
+                device_id,
+                length(content) as "content_size: u64"
             from latest_document_versions
             where vault_update_id > ?
             order by vault_update_id
@@ -197,6 +213,22 @@ impl Database {
         .with_context(|| {
             format!("Cannot fetch latest documents since vault_update_id {vault_update_id}")
         })
+        .map(|rows| {
+            rows.into_iter()
+                .map(|row| DocumentVersionWithoutContent {
+                    vault_update_id: row.vault_update_id,
+                    document_id: row.document_id.into(),
+                    relative_path: row.relative_path,
+                    updated_date: row.updated_date,
+                    is_deleted: row.is_deleted,
+                    user_id: row.user_id,
+                    device_id: row.device_id,
+                    content_size: row
+                        .content_size
+                        .expect("Content size can't be null but sqlx can't infer it"),
+                })
+                .collect()
+        })
     }
 
     pub async fn get_max_update_id_in_vault(
diff --git a/backend/sync_server/src/app_state/database/models.rs b/backend/sync_server/src/app_state/database/models.rs
index 9f896ac5..62ba66b6 100644
--- a/backend/sync_server/src/app_state/database/models.rs
+++ b/backend/sync_server/src/app_state/database/models.rs
@@ -35,6 +35,7 @@ pub struct DocumentVersionWithoutContent {
     pub is_deleted: bool,
     pub user_id: UserId,
     pub device_id: DeviceId,
+    pub content_size: u64,
 }
 
 impl From<StoredDocumentVersion> for DocumentVersionWithoutContent {
@@ -47,6 +48,7 @@ impl From<StoredDocumentVersion> for DocumentVersionWithoutContent {
             is_deleted: value.is_deleted,
             user_id: value.user_id,
             device_id: value.device_id,
+            content_size: value.content.len() as u64,
         }
     }
 }
diff --git a/frontend/sync-client/src/services/types.ts b/frontend/sync-client/src/services/types.ts
index 4fff201c..893eea70 100644
--- a/frontend/sync-client/src/services/types.ts
+++ b/frontend/sync-client/src/services/types.ts
@@ -516,6 +516,8 @@ export interface components {
 		/** @description Response to an update document request. */
 		DocumentUpdateResponse:
 			| {
+					/** Format: uint64 */
+					contentSize: number;
 					deviceId: string;
 					/** Format: uuid */
 					documentId: string;
@@ -558,6 +560,8 @@ export interface components {
 			vaultUpdateId: number;
 		};
 		DocumentVersionWithoutContent: {
+			/** Format: uint64 */
+			contentSize: number;
 			deviceId: string;
 			/** Format: uuid */
 			documentId: string;