diff --git a/backend/api/v1/modules/crm/quotes/routes.py b/backend/api/v1/modules/crm/quotes/routes.py
index a5b38d5..7693f01 100644
--- a/backend/api/v1/modules/crm/quotes/routes.py
+++ b/backend/api/v1/modules/crm/quotes/routes.py
@@ -1,4 +1,4 @@
-from fastapi import APIRouter, Depends, File, Query, UploadFile, status
+from fastapi import APIRouter, Depends, File, Query, Response, UploadFile, status
 from sqlalchemy.orm import Session
 
 from core.database import get_core_db
@@ -152,16 +152,23 @@ def reject_quote(
     return service.reject_quote(db, quote_id, current_user["tenant_id"], company_id)
 
 
-@router.get("/quotes/{quote_id}/pdf-url")
-def quote_pdf_url(
+@router.get("/quotes/{quote_id}/pdf")
+def quote_pdf(
     quote_id: int,
     company_id: int = Query(..., description="Company ID"),
     current_user: dict = Depends(get_current_user),
     db: Session = Depends(get_core_db),
 ):
-    """Genera el PDF de la cotización (formato maestro + marca) y devuelve una URL."""
-    url = pdf_service.get_pdf_url(db, quote_id, current_user["tenant_id"], company_id)
-    return {"url": url}
+    """Devuelve el PDF de la cotización directamente (vía backend, sin exponer MinIO)."""
+    tenant_id = current_user["tenant_id"]
+    quote = service.get_quote(db, quote_id, tenant_id, company_id)
+    pdf_bytes = pdf_service.build_pdf_bytes(db, quote, tenant_id, company_id)
+    ref = (quote.reference or f"cot-{quote.id}").replace("/", "-")
+    return Response(
+        content=pdf_bytes,
+        media_type="application/pdf",
+        headers={"Content-Disposition": f'inline; filename="cotizacion-{ref}.pdf"'},
+    )
 
 
 @router.post("/quotes/{quote_id}/send-email")
diff --git a/frontend/src/lib/api/crm/commercial.ts b/frontend/src/lib/api/crm/commercial.ts
index 37bd255..e190fde 100644
--- a/frontend/src/lib/api/crm/commercial.ts
+++ b/frontend/src/lib/api/crm/commercial.ts
@@ -158,7 +158,7 @@ export const quotesAPI = {
 	clone: (id: number, companyId: number) => unwrap<Quote>(api.post(`/v1/crm/quotes/${id}/clone?${qp(companyId)}`, {})),
 	remove: (id: number, companyId: number) => unwrap(api.delete(`/v1/crm/quotes/${id}?${qp(companyId)}`)),
 	items: (quoteId: number, companyId: number) => unwrap<QuoteItem[]>(api.get(`/v1/crm/quotes/${quoteId}/items?${qp(companyId)}`)),
-	pdfUrl: (id: number, companyId: number) => unwrap<{ url: string }>(api.get(`/v1/crm/quotes/${id}/pdf-url?${qp(companyId)}`)),
+	pdfBlob: (id: number, companyId: number) => (api as any).getBlob(`/v1/crm/quotes/${id}/pdf?${qp(companyId)}`) as Promise<Blob>,
 	sendEmail: (id: number, companyId: number, body: { to?: string | null; subject?: string | null; message?: string | null }) =>
 		unwrap<{ sent_to: string; reference: string }>(api.post(`/v1/crm/quotes/${id}/send-email?${qp(companyId)}`, body))
 };
diff --git a/frontend/src/routes/dashboard/crm/cotizaciones/[id]/+page.svelte b/frontend/src/routes/dashboard/crm/cotizaciones/[id]/+page.svelte
index 585d5c6..6573670 100644
--- a/frontend/src/routes/dashboard/crm/cotizaciones/[id]/+page.svelte
+++ b/frontend/src/routes/dashboard/crm/cotizaciones/[id]/+page.svelte
@@ -146,8 +146,10 @@
 		if (!companyId || !quote) return;
 		busy = true;
 		try {
-			const { url } = await quotesAPI.pdfUrl(quote.id, companyId);
-			if (url) window.open(url, '_blank', 'noopener');
+			const blob = await quotesAPI.pdfBlob(quote.id, companyId);
+			const url = URL.createObjectURL(blob);
+			window.open(url, '_blank', 'noopener');
+			setTimeout(() => URL.revokeObjectURL(url), 60000);
 		} catch (e) {
 			toast.error(e instanceof Error ? e.message : 'No se pudo generar el PDF');
 		} finally {