diff --git a/frontend/src/lib/document/DocumentTopBar.svelte.test.ts b/frontend/src/lib/document/DocumentTopBar.svelte.test.ts
new file mode 100644
index 00000000..93d07948
--- /dev/null
+++ b/frontend/src/lib/document/DocumentTopBar.svelte.test.ts
@@ -0,0 +1,193 @@
+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+import DocumentTopBar from './DocumentTopBar.svelte';
+
+afterEach(cleanup);
+
+const sender = { id: 's1', firstName: 'Anna', lastName: 'Schmidt', displayName: 'Anna Schmidt' };
+const receiver = { id: 'r1', firstName: 'Bert', lastName: 'Meier', displayName: 'Bert Meier' };
+
+const baseDoc = {
+	id: 'd1',
+	title: 'Brief an Helene',
+	originalFilename: 'brief.pdf',
+	documentDate: '1923-04-15',
+	sender,
+	receivers: [receiver],
+	filePath: null as string | null,
+	contentType: null as string | null,
+	location: null,
+	status: 'UPLOADED',
+	tags: [] as { id: string; name: string }[]
+};
+
+const baseProps = (overrides: Record<string, unknown> = {}) => ({
+	doc: baseDoc,
+	canWrite: false,
+	fileUrl: '',
+	transcribeMode: false,
+	inferredRelationship: null,
+	geschichten: [],
+	canBlogWrite: false,
+	...overrides
+});
+
+describe('DocumentTopBar', () => {
+	it('renders the document title as the main heading', async () => {
+		render(DocumentTopBar, { props: baseProps() });
+
+		await expect.element(page.getByRole('heading', { name: 'Brief an Helene' })).toBeVisible();
+	});
+
+	it('falls back to originalFilename when title is missing', async () => {
+		render(DocumentTopBar, { props: baseProps({ doc: { ...baseDoc, title: null } }) });
+
+		await expect.element(page.getByRole('heading', { name: 'brief.pdf' })).toBeVisible();
+	});
+
+	it('renders the short documentDate when one is present', async () => {
+		render(DocumentTopBar, { props: baseProps() });
+
+		await expect.element(page.getByText('15.04.1923')).toBeVisible();
+	});
+
+	it('omits the date paragraph entirely when documentDate is null', async () => {
+		render(DocumentTopBar, { props: baseProps({ doc: { ...baseDoc, documentDate: null } }) });
+
+		await expect.element(page.getByText(/^\d{2}\.\d{2}\.\d{4}$/)).not.toBeInTheDocument();
+	});
+
+	it('does not render the transcribe button when canWrite is false', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({ doc: { ...baseDoc, filePath: 'x', contentType: 'application/pdf' } })
+		});
+
+		await expect
+			.element(page.getByRole('button', { name: /transkribieren/i }))
+			.not.toBeInTheDocument();
+	});
+
+	it('does not render the transcribe button when contentType is not PDF', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({
+				canWrite: true,
+				doc: { ...baseDoc, filePath: 'x', contentType: 'image/jpeg' }
+			})
+		});
+
+		await expect
+			.element(page.getByRole('button', { name: /transkribieren/i }))
+			.not.toBeInTheDocument();
+	});
+
+	it('renders the transcribe button when canWrite is true and the file is a PDF', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({
+				canWrite: true,
+				doc: { ...baseDoc, filePath: 'x', contentType: 'application/pdf' }
+			})
+		});
+
+		await expect.element(page.getByRole('button', { name: /transkribieren/i })).toBeVisible();
+	});
+
+	it('renders the stop-transcribe button when transcribeMode is true', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({
+				canWrite: true,
+				transcribeMode: true,
+				doc: { ...baseDoc, filePath: 'x', contentType: 'application/pdf' }
+			})
+		});
+
+		await expect.element(page.getByRole('button', { name: /fertig/i })).toBeVisible();
+	});
+
+	it('hides the edit link when transcribeMode is true', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({
+				canWrite: true,
+				transcribeMode: true,
+				doc: { ...baseDoc, filePath: 'x', contentType: 'application/pdf' }
+			})
+		});
+
+		await expect.element(page.getByRole('link', { name: /bearbeiten/i })).not.toBeInTheDocument();
+	});
+
+	it('renders the edit link when canWrite is true and not in transcribeMode', async () => {
+		render(DocumentTopBar, { props: baseProps({ canWrite: true }) });
+
+		await expect
+			.element(page.getByRole('link', { name: /bearbeiten/i }))
+			.toHaveAttribute('href', '/documents/d1/edit');
+	});
+
+	it('does not render the edit link when canWrite is false', async () => {
+		render(DocumentTopBar, { props: baseProps() });
+
+		await expect.element(page.getByRole('link', { name: /bearbeiten/i })).not.toBeInTheDocument();
+	});
+
+	it('renders the download link when filePath is present and not in transcribe mode', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({ doc: { ...baseDoc, filePath: 'docs/x.pdf' }, fileUrl: '/api/docs/x' })
+		});
+
+		await expect.element(page.getByTitle('Herunterladen')).toBeVisible();
+	});
+
+	it('does not render the download link when filePath is null', async () => {
+		render(DocumentTopBar, { props: baseProps() });
+
+		await expect.element(page.getByTitle('Herunterladen')).not.toBeInTheDocument();
+	});
+
+	it('opens the metadata drawer when the details toggle is clicked', async () => {
+		render(DocumentTopBar, { props: baseProps() });
+
+		await page.getByRole('button', { name: /^details$/i }).click();
+
+		await expect
+			.element(page.getByRole('button', { name: /^details$/i }))
+			.toHaveAttribute('aria-expanded', 'true');
+	});
+
+	it('renders the mobile kebab menu trigger when filePath is present', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({ doc: { ...baseDoc, filePath: 'docs/x.pdf' } })
+		});
+
+		await expect.element(page.getByRole('button', { name: /weitere aktionen/i })).toBeVisible();
+	});
+
+	it('does not render the mobile kebab menu when there is no filePath and no canWrite/PDF combo', async () => {
+		render(DocumentTopBar, { props: baseProps() });
+
+		await expect
+			.element(page.getByRole('button', { name: /weitere aktionen/i }))
+			.not.toBeInTheDocument();
+	});
+
+	it('opens the mobile kebab menu when the trigger is clicked', async () => {
+		render(DocumentTopBar, {
+			props: baseProps({ doc: { ...baseDoc, filePath: 'docs/x.pdf' } })
+		});
+
+		await page.getByRole('button', { name: /weitere aktionen/i }).click();
+
+		await expect
+			.element(page.getByRole('button', { name: /weitere aktionen/i }))
+			.toHaveAttribute('aria-expanded', 'true');
+	});
+
+	it('renders the metadata drawer content when detailsOpen is toggled on', async () => {
+		render(DocumentTopBar, { props: baseProps() });
+
+		await page.getByRole('button', { name: /^details$/i }).click();
+
+		const drawer = document.querySelector('[data-topbar] > div:nth-child(2)');
+		expect(drawer).not.toBeNull();
+	});
+});