various

backend/Cargo.lock

@@ -1959,6 +1959,7 @@ checksum = "529feb3e6769d234375c4cf1ee2ce713682b8e76538cb13f9fc23e1400a591e7"
 dependencies = [
  "bytemuck",
  "byteorder-lite",
+ "image-webp",
  "moxcms",
  "num-traits",
  "png",
@@ -1966,6 +1967,16 @@ dependencies = [
  "zune-jpeg",
 ]
 
+[[package]]
+name = "image-webp"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "525e9ff3e1a4be2fbea1fdf0e98686a6d98b4d8f937e1bf7402245af1909e8c3"
+dependencies = [
+ "byteorder-lite",
+ "quick-error",
+]
+
 [[package]]
 name = "indexmap"
 version = "2.11.4"
@@ -2695,6 +2706,12 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "quick-error"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a993555f31e5a609f617c12db6250dedcac1b0a85076912c436e6fc9b2c8e6a3"
+
 [[package]]
 name = "quick-xml"
 version = "0.32.0"

backend/Cargo.toml

@@ -36,7 +36,7 @@ sha2 = "0.10"
 hex = "0.4"
 bytes = "1.5"
 async-trait = "0.1"
-image = { version = "0.25", default-features = false, features = ["png", "jpeg"] }
+image = { version = "0.25", default-features = false, features = ["png", "jpeg", "webp"] }
 pdfium-render = "0.8"
 mime_guess = "2.0"
 tempfile = "3.10"

backend/src/workers/thumbnails.rs

@@ -274,7 +274,7 @@ impl JobHandler for GenerateThumbnailsJob {
                 .put_object(
                     &s3_key,
                     image.image_bytes.clone(),
-                    Some("image/png".into()),
+                    Some("image/webp".into()),
                     None,
                 )
                 .await
@@ -315,7 +315,7 @@ impl JobHandler for GenerateThumbnailsJob {
                 .put_object(
                     &s3_key,
                     image.image_bytes.clone(),
-                    Some("image/png".into()),
+                    Some("image/webp".into()),
                     None,
                 )
                 .await
@@ -609,7 +609,7 @@ fn encode_dynamic_image(image: image::DynamicImage) -> Result<GeneratedImage, St
     let (width, height) = image.dimensions();
     let mut cursor = Cursor::new(Vec::new());
     image
-        .write_to(&mut cursor, ImageFormat::Png)
+        .write_to(&mut cursor, ImageFormat::WebP)
         .map_err(|err| err.to_string())?;
     Ok(GeneratedImage {
         image_bytes: cursor.into_inner(),
@@ -660,7 +660,7 @@ fn persist_assets_metadata(
             id: asset.asset_id,
             document_version_id: context.version.id,
             asset_type: asset.asset_type.to_string(),
-            mime_type: "image/png".to_string(),
+            mime_type: "image/webp".to_string(),
             metadata: json!({
                 "generated_at": Utc::now().to_rfc3339(),
             }),