diff --git a/tests/integration/border.test.ts b/tests/integration/border.test.ts
index fbb3adb1..c56ad0e0 100644
--- a/tests/integration/border.test.ts
+++ b/tests/integration/border.test.ts
@@ -573,6 +573,72 @@ describe("Border", () => {
     expect(result.processedSize).toBeGreaterThan(0);
   });
 
+  it("handles HEIF input (motorcycle.heif)", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "photo.heif", contentType: "image/heif", content: HEIF },
+      {
+        name: "settings",
+        content: JSON.stringify({ borderWidth: 10, borderColor: "#00FF00" }),
+      },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/border",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.processedSize).toBeGreaterThan(0);
+  });
+
+  it("handles SVG input", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "icon.svg", contentType: "image/svg+xml", content: SVG },
+      {
+        name: "settings",
+        content: JSON.stringify({ borderWidth: 10, borderColor: "#FF0000" }),
+      },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/border",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.processedSize).toBeGreaterThan(0);
+  });
+
+  it("handles animated GIF input", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "anim.gif", contentType: "image/gif", content: GIF },
+      {
+        name: "settings",
+        content: JSON.stringify({ borderWidth: 5, borderColor: "#000000" }),
+      },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/border",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.processedSize).toBeGreaterThan(0);
+  });
+
   it("rejects negative border width", async () => {
     const { body, contentType } = createMultipartPayload([
       { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
diff --git a/tests/integration/color-adjustments.test.ts b/tests/integration/color-adjustments.test.ts
index a12f796e..d9a51313 100644
--- a/tests/integration/color-adjustments.test.ts
+++ b/tests/integration/color-adjustments.test.ts
@@ -537,3 +537,42 @@ describe("No-op effect", () => {
     expect(result.downloadUrl).toBeDefined();
   });
 });
+
+// ── HEIF input ──────────────────────────────────────────────────
+describe("HEIF input", () => {
+  it("processes HEIF input (motorcycle.heif)", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const res = await postTool(
+      "adjust-colors",
+      { brightness: 20 },
+      HEIF,
+      "photo.heif",
+      "image/heif",
+    );
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  }, 60_000);
+});
+
+// ── Animated GIF input ──────────────────────────────────────────
+describe("Animated GIF input", () => {
+  it("processes animated GIF", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const res = await postTool("adjust-colors", { saturation: 30 }, GIF, "anim.gif", "image/gif");
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  });
+});
+
+// ── SVG input ───────────────────────────────────────────────────
+describe("SVG input", () => {
+  it("processes SVG input", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const res = await postTool("adjust-colors", { contrast: 20 }, SVG, "icon.svg", "image/svg+xml");
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  });
+});
diff --git a/tests/integration/color-palette.test.ts b/tests/integration/color-palette.test.ts
index 5dcdfe88..28821095 100644
--- a/tests/integration/color-palette.test.ts
+++ b/tests/integration/color-palette.test.ts
@@ -400,6 +400,46 @@ describe("HEIF input", () => {
   });
 });
 
+// ── Animated GIF input ──────────────────────────────────────────
+describe("Animated GIF input", () => {
+  it("extracts palette from animated GIF", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body: payload, contentType } = makeFilePayload(GIF, "anim.gif", "image/gif");
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/color-palette",
+      payload,
+      headers: {
+        "content-type": contentType,
+        authorization: `Bearer ${adminToken}`,
+      },
+    });
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.colors.length).toBeGreaterThan(0);
+  });
+});
+
+// ── SVG input ───────────────────────────────────────────────────
+describe("SVG input", () => {
+  it("extracts palette from SVG image", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const { body: payload, contentType } = makeFilePayload(SVG, "icon.svg", "image/svg+xml");
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/color-palette",
+      payload,
+      headers: {
+        "content-type": contentType,
+        authorization: `Bearer ${adminToken}`,
+      },
+    });
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.colors.length).toBeGreaterThan(0);
+  });
+});
+
 // ── Filename preserved in response ──────────────────────────────
 describe("Filename tracking", () => {
   it("returns the original filename in the response", async () => {
diff --git a/tests/integration/favicon.test.ts b/tests/integration/favicon.test.ts
index 1ee2e8b6..799638f2 100644
--- a/tests/integration/favicon.test.ts
+++ b/tests/integration/favicon.test.ts
@@ -627,6 +627,59 @@ describe("favicon", () => {
     expect(manifest.name).toBe("my.app.logo");
   });
 
+  // ── Animated GIF input ────────────────────────────────────────────
+
+  it("generates favicons from animated GIF input", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "anim.gif", contentType: "image/gif", content: GIF },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/favicon",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const zip = new AdmZip(Buffer.from(res.rawPayload));
+    const entries = zip.getEntries().map((e) => e.entryName);
+    expect(entries).toContain("favicon-16x16.png");
+    expect(entries).toContain("favicon.ico");
+  });
+
+  // ── Batch: 5+ images ────────────────────────────────────────────
+
+  it("generates favicons for 5 images in subfolders", async () => {
+    const JPG = readFileSync(join(FIXTURES, "test-100x100.jpg"));
+    const WEBP = readFileSync(join(FIXTURES, "test-50x50.webp"));
+    const TINY = readFileSync(join(FIXTURES, "test-1x1.png"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "a.png", contentType: "image/png", content: PNG },
+      { name: "file", filename: "b.jpg", contentType: "image/jpeg", content: JPG },
+      { name: "file", filename: "c.webp", contentType: "image/webp", content: WEBP },
+      { name: "file", filename: "d.png", contentType: "image/png", content: TINY },
+      { name: "file", filename: "e.png", contentType: "image/png", content: PNG },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/favicon",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const zip = new AdmZip(Buffer.from(res.rawPayload));
+    const entries = zip.getEntries().map((e) => e.entryName);
+    expect(entries.some((e) => e.startsWith("a/"))).toBe(true);
+    expect(entries.some((e) => e.startsWith("b/"))).toBe(true);
+    expect(entries.some((e) => e.startsWith("c/"))).toBe(true);
+    expect(entries.some((e) => e.startsWith("d/"))).toBe(true);
+    expect(entries.some((e) => e.startsWith("e/"))).toBe(true);
+  });
+
   // ── HEIF format input ────────────────────────────────────────────
 
   it("generates favicons from HEIF input", async () => {
diff --git a/tests/integration/image-to-base64.test.ts b/tests/integration/image-to-base64.test.ts
index dcab7752..ed597149 100644
--- a/tests/integration/image-to-base64.test.ts
+++ b/tests/integration/image-to-base64.test.ts
@@ -788,6 +788,29 @@ describe("image-to-base64", () => {
     expect(res.statusCode).toBe(400);
   });
 
+  // ── Animated GIF input ──────────────────────────────────────────
+
+  it("converts animated GIF to base64", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "anim.gif", contentType: "image/gif", content: GIF },
+      { name: "settings", content: JSON.stringify({}) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/image-to-base64",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.results).toHaveLength(1);
+    expect(json.results[0].base64.length).toBeGreaterThan(0);
+    expect(json.results[0].dataUri).toMatch(/^data:image\/.+;base64,/);
+  });
+
   // ── maxHeight=0 means no resize ──────────────────────────────────
 
   it("maxHeight=0 means no height resize (pass-through)", async () => {
diff --git a/tests/integration/image-to-pdf.test.ts b/tests/integration/image-to-pdf.test.ts
index 91b42c0c..f4817e19 100644
--- a/tests/integration/image-to-pdf.test.ts
+++ b/tests/integration/image-to-pdf.test.ts
@@ -739,6 +739,72 @@ describe("image-to-pdf", () => {
     expect(json.pages).toBe(1);
   });
 
+  // ── HEIF input ────────────────────────────────────────────────────
+
+  it("converts HEIF image to PDF", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "photo.heif", contentType: "image/heif", content: HEIF },
+      { name: "settings", content: JSON.stringify({}) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/image-to-pdf",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.pages).toBe(1);
+    expect(json.processedSize).toBeGreaterThan(0);
+  }, 60_000);
+
+  // ── Animated GIF input ──────────────────────────────────────────
+
+  it("converts animated GIF to PDF", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "anim.gif", contentType: "image/gif", content: GIF },
+      { name: "settings", content: JSON.stringify({}) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/image-to-pdf",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.pages).toBe(1);
+    expect(json.processedSize).toBeGreaterThan(0);
+  });
+
+  // ── SVG input ───────────────────────────────────────────────────
+
+  it("converts SVG to PDF", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "icon.svg", contentType: "image/svg+xml", content: SVG },
+      { name: "settings", content: JSON.stringify({}) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/image-to-pdf",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.pages).toBe(1);
+    expect(json.processedSize).toBeGreaterThan(0);
+  });
+
   // ── Rejects invalid orientation ──────────────────────────────────
 
   it("rejects invalid orientation value", async () => {
diff --git a/tests/integration/replace-color.test.ts b/tests/integration/replace-color.test.ts
index 03b4233f..836fc3f3 100644
--- a/tests/integration/replace-color.test.ts
+++ b/tests/integration/replace-color.test.ts
@@ -420,3 +420,51 @@ describe("Target color validation", () => {
     expect(res.statusCode).toBe(400);
   });
 });
+
+// ── HEIF input ─────────────────────────────────────────────────
+describe("HEIF input", () => {
+  it("processes HEIF image (motorcycle.heif)", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const res = await postTool(
+      { sourceColor: "#808080", targetColor: "#FF0000", tolerance: 50 },
+      HEIF,
+      "photo.heif",
+      "image/heif",
+    );
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  }, 60_000);
+});
+
+// ── Animated GIF input ─────────────────────────────────────────
+describe("Animated GIF input", () => {
+  it("processes animated GIF", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const res = await postTool(
+      { sourceColor: "#808080", targetColor: "#00FF00", tolerance: 60 },
+      GIF,
+      "anim.gif",
+      "image/gif",
+    );
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  });
+});
+
+// ── SVG input ──────────────────────────────────────────────────
+describe("SVG input", () => {
+  it("processes SVG image", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const res = await postTool(
+      { sourceColor: "#000000", targetColor: "#FF0000", tolerance: 30 },
+      SVG,
+      "icon.svg",
+      "image/svg+xml",
+    );
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  });
+});
diff --git a/tests/integration/sharpening.test.ts b/tests/integration/sharpening.test.ts
index 00b3cf9b..7282762b 100644
--- a/tests/integration/sharpening.test.ts
+++ b/tests/integration/sharpening.test.ts
@@ -452,3 +452,46 @@ describe("HEIC with different methods", () => {
     expect(res.statusCode).toBe(200);
   });
 });
+
+// ── HEIF input ──────────────────────────────────────────────────
+describe("HEIF input", () => {
+  it("processes HEIF image (motorcycle.heif)", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const res = await postTool(
+      { method: "adaptive", sigma: 2.0 },
+      HEIF,
+      "photo.heif",
+      "image/heif",
+    );
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  }, 60_000);
+});
+
+// ── Animated GIF input ──────────────────────────────────────────
+describe("Animated GIF input", () => {
+  it("processes animated GIF", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const res = await postTool(
+      { method: "unsharp-mask", amount: 150 },
+      GIF,
+      "anim.gif",
+      "image/gif",
+    );
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  });
+});
+
+// ── SVG input ───────────────────────────────────────────────────
+describe("SVG input", () => {
+  it("processes SVG image", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const res = await postTool({ method: "adaptive" }, SVG, "icon.svg", "image/svg+xml");
+    expect(res.statusCode).toBe(200);
+    const result = JSON.parse(res.body);
+    expect(result.downloadUrl).toBeDefined();
+  });
+});
diff --git a/tests/integration/text-overlay.test.ts b/tests/integration/text-overlay.test.ts
index d5583e36..551a4cc6 100644
--- a/tests/integration/text-overlay.test.ts
+++ b/tests/integration/text-overlay.test.ts
@@ -530,6 +530,69 @@ describe("text-overlay", () => {
     expect(res.statusCode).toBe(400);
   });
 
+  // ── HEIF input ───────────────────────────────────────────────────
+
+  it("handles HEIF input (motorcycle.heif)", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "photo.heif", contentType: "image/heif", content: HEIF },
+      { name: "settings", content: JSON.stringify({ text: "HEIF overlay" }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/text-overlay",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.downloadUrl).toBeDefined();
+  }, 60_000);
+
+  // ── Animated GIF input ──────────────────────────────────────────
+
+  it("handles animated GIF input", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "anim.gif", contentType: "image/gif", content: GIF },
+      { name: "settings", content: JSON.stringify({ text: "GIF overlay" }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/text-overlay",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.downloadUrl).toBeDefined();
+  });
+
+  // ── SVG input ───────────────────────────────────────────────────
+
+  it("handles SVG input", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "icon.svg", contentType: "image/svg+xml", content: SVG },
+      { name: "settings", content: JSON.stringify({ text: "SVG overlay" }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/text-overlay",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.downloadUrl).toBeDefined();
+  });
+
   // ── Preserves image dimensions ───────────────────────────────────
 
   it("preserves image dimensions after text overlay", async () => {
diff --git a/tests/integration/watermark-image.test.ts b/tests/integration/watermark-image.test.ts
index 988bb248..5a8c779d 100644
--- a/tests/integration/watermark-image.test.ts
+++ b/tests/integration/watermark-image.test.ts
@@ -483,6 +483,51 @@ describe("watermark-image", () => {
     expect(res.statusCode).toBe(401);
   });
 
+  // ── HEIF input ────────────────────────────────────────────────────
+
+  it("processes HEIF main image (motorcycle.heif)", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "photo.heif", contentType: "image/heif", content: HEIF },
+      { name: "watermark", filename: "wm.png", contentType: "image/png", content: SMALL_PNG },
+      { name: "settings", content: JSON.stringify({ scale: 10 }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/watermark-image",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.downloadUrl).toBeDefined();
+    expect(json.processedSize).toBeGreaterThan(0);
+  }, 60_000);
+
+  // ── Animated GIF input ──────────────────────────────────────────
+
+  it("processes animated GIF main image", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "anim.gif", contentType: "image/gif", content: GIF },
+      { name: "watermark", filename: "wm.png", contentType: "image/png", content: SMALL_PNG },
+      { name: "settings", content: JSON.stringify({ scale: 20 }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/watermark-image",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.processedSize).toBeGreaterThan(0);
+  });
+
   // ── WebP watermark image ─────────────────────────────────────────
 
   it("processes WebP watermark image", async () => {
diff --git a/tests/integration/watermark-text.test.ts b/tests/integration/watermark-text.test.ts
index a3c193cb..11afc56c 100644
--- a/tests/integration/watermark-text.test.ts
+++ b/tests/integration/watermark-text.test.ts
@@ -518,6 +518,69 @@ describe("watermark-text", () => {
     expect(res.statusCode).toBe(400);
   });
 
+  // ── HEIF input ───────────────────────────────────────────────────
+
+  it("handles HEIF input (motorcycle.heif)", async () => {
+    const HEIF = readFileSync(join(FIXTURES, "content", "motorcycle.heif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "photo.heif", contentType: "image/heif", content: HEIF },
+      { name: "settings", content: JSON.stringify({ text: "HEIF Test" }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/watermark-text",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.downloadUrl).toBeDefined();
+  }, 60_000);
+
+  // ── Animated GIF input ──────────────────────────────────────────
+
+  it("handles animated GIF input", async () => {
+    const GIF = readFileSync(join(FIXTURES, "animated.gif"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "anim.gif", contentType: "image/gif", content: GIF },
+      { name: "settings", content: JSON.stringify({ text: "GIF Test" }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/watermark-text",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.downloadUrl).toBeDefined();
+  });
+
+  // ── SVG input ───────────────────────────────────────────────────
+
+  it("handles SVG input", async () => {
+    const SVG = readFileSync(join(FIXTURES, "test-100x100.svg"));
+    const { body, contentType } = createMultipartPayload([
+      { name: "file", filename: "icon.svg", contentType: "image/svg+xml", content: SVG },
+      { name: "settings", content: JSON.stringify({ text: "SVG Test" }) },
+    ]);
+
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/v1/tools/watermark-text",
+      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
+      body,
+    });
+
+    expect(res.statusCode).toBe(200);
+    const json = JSON.parse(res.body);
+    expect(json.downloadUrl).toBeDefined();
+  });
+
   // ── Preserves image dimensions ───────────────────────────────────
 
   it("preserves image dimensions after watermark", async () => {