diff --git a/frontend/components/report/designer/CanvasComponent.tsx b/frontend/components/report/designer/CanvasComponent.tsx
index 554c7065..ccc3aa8a 100644
--- a/frontend/components/report/designer/CanvasComponent.tsx
+++ b/frontend/components/report/designer/CanvasComponent.tsx
@@ -357,11 +357,11 @@ export function CanvasComponent({ component }: CanvasComponentProps) {
             height: snappedSize,
           });
         } else {
-          // Grid Snap 적용
-          updateComponent(component.id, {
-            width: snapValueToGrid(boundedWidth),
-            height: snapValueToGrid(boundedHeight),
-          });
+        // Grid Snap 적용
+        updateComponent(component.id, {
+          width: snapValueToGrid(boundedWidth),
+          height: snapValueToGrid(boundedHeight),
+        });
         }
       }
     };
@@ -444,17 +444,17 @@ export function CanvasComponent({ component }: CanvasComponentProps) {
       case "text":
       case "label":
         return (
-          <div
+            <div
             className="h-full w-full"
-            style={{
-              fontSize: `${component.fontSize}px`,
-              color: component.fontColor,
-              fontWeight: component.fontWeight,
-              textAlign: component.textAlign as "left" | "center" | "right",
-              whiteSpace: "pre-wrap",
-            }}
-          >
-            {displayValue}
+              style={{
+                fontSize: `${component.fontSize}px`,
+                color: component.fontColor,
+                fontWeight: component.fontWeight,
+                textAlign: component.textAlign as "left" | "center" | "right",
+                whiteSpace: "pre-wrap",
+              }}
+            >
+              {displayValue}
           </div>
         );
 
@@ -534,7 +534,7 @@ export function CanvasComponent({ component }: CanvasComponentProps) {
         // 기본 테이블 (데이터 없을 때)
         return (
           <div className="flex h-full w-full items-center justify-center border-2 border-dashed border-gray-300 bg-gray-50 text-xs text-gray-400">
-            쿼리를 연결하세요
+              쿼리를 연결하세요
           </div>
         );
 
@@ -858,12 +858,12 @@ export function CanvasComponent({ component }: CanvasComponentProps) {
         // 계산 결과 (첫 번째 항목은 기준값, 두 번째부터 연산자 적용)
         const calculateResult = (): number => {
           if (calcItems.length === 0) return 0;
-
+          
           // 첫 번째 항목은 기준값
           let result = getCalcItemValue(
             calcItems[0] as { label: string; value: number | string; operator: string; fieldName?: string },
           );
-
+          
           // 두 번째 항목부터 연산자 적용
           for (let i = 1; i < calcItems.length; i++) {
             const item = calcItems[i];
@@ -899,30 +899,30 @@ export function CanvasComponent({ component }: CanvasComponentProps) {
                   item: { label: string; value: number | string; operator: string; fieldName?: string },
                   index: number,
                 ) => {
-                  const itemValue = getCalcItemValue(item);
-                  return (
-                    <div key={index} className="flex items-center justify-between py-1">
-                      <span
-                        className="flex-shrink-0"
-                        style={{
-                          width: `${calcLabelWidth}px`,
-                          fontSize: `${calcLabelFontSize}px`,
-                          color: calcLabelColor,
-                        }}
-                      >
-                        {item.label}
-                      </span>
-                      <span
-                        className="text-right"
-                        style={{
-                          fontSize: `${calcValueFontSize}px`,
-                          color: calcValueColor,
-                        }}
-                      >
-                        {formatNumber(itemValue)}
-                      </span>
-                    </div>
-                  );
+                const itemValue = getCalcItemValue(item);
+                return (
+                  <div key={index} className="flex items-center justify-between py-1">
+                    <span
+                      className="flex-shrink-0"
+                      style={{
+                        width: `${calcLabelWidth}px`,
+                        fontSize: `${calcLabelFontSize}px`,
+                        color: calcLabelColor,
+                      }}
+                    >
+                      {item.label}
+                    </span>
+                    <span
+                      className="text-right"
+                      style={{
+                        fontSize: `${calcValueFontSize}px`,
+                        color: calcValueColor,
+                      }}
+                    >
+                      {formatNumber(itemValue)}
+                    </span>
+                  </div>
+                );
                 },
               )}
             </div>
diff --git a/frontend/components/report/designer/ReportPreviewModal.tsx b/frontend/components/report/designer/ReportPreviewModal.tsx
index bf0603b7..7069bb75 100644
--- a/frontend/components/report/designer/ReportPreviewModal.tsx
+++ b/frontend/components/report/designer/ReportPreviewModal.tsx
@@ -17,6 +17,9 @@ import { getFullImageUrl } from "@/lib/api/client";
 import JsBarcode from "jsbarcode";
 import QRCode from "qrcode";
 
+// mm -> px 변환 상수
+const MM_TO_PX = 4;
+
 interface ReportPreviewModalProps {
   isOpen: boolean;
   onClose: () => void;
@@ -149,8 +152,8 @@ function PreviewWatermarkLayer({ watermark, pageWidth, pageHeight }: PreviewWate
   // 타일 스타일
   if (watermark.style === "tile") {
     const tileSize = watermark.type === "text" ? (watermark.fontSize || 48) * 4 : 150;
-    const cols = Math.ceil((pageWidth * 3.7795) / tileSize) + 2;
-    const rows = Math.ceil((pageHeight * 3.7795) / tileSize) + 2;
+    const cols = Math.ceil((pageWidth * MM_TO_PX) / tileSize) + 2;
+    const rows = Math.ceil((pageHeight * MM_TO_PX) / tileSize) + 2;
 
     return (
       <div style={baseStyle}>
@@ -514,7 +517,7 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
 
     printWindow.document.write(printHtml);
     printWindow.document.close();
-    printWindow.print();
+    // print()는 HTML 내 스크립트에서 이미지 로드 완료 후 자동 호출됨
   };
 
   // 워터마크 HTML 생성 헬퍼 함수
@@ -554,8 +557,8 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
 
     if (watermark.style === "tile") {
       const tileSize = watermark.type === "text" ? (watermark.fontSize || 48) * 4 : 150;
-      const cols = Math.ceil((pageWidth * 3.7795) / tileSize) + 2;
-      const rows = Math.ceil((pageHeight * 3.7795) / tileSize) + 2;
+      const cols = Math.ceil((pageWidth * MM_TO_PX) / tileSize) + 2;
+      const rows = Math.ceil((pageHeight * MM_TO_PX) / tileSize) + 2;
       const tileItems = Array.from({ length: rows * cols })
         .map(() => `<div style="width: ${tileSize}px; height: ${tileSize}px; display: flex; align-items: center; justify-content: center;">${textContent}</div>`)
         .join("");
@@ -650,9 +653,9 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
             : "";
 
           content = `
-            <div style="display: flex; align-items: center; gap: 8px; height: 100%;">
-              ${personName ? `<div style="font-size: 12px;">${personName}</div>` : ""}
-              <div style="position: relative; width: ${component.width}px; height: ${component.height}px;">
+            <div style="display: flex; align-items: center; gap: 8px; width: 100%; height: 100%;">
+              ${personName ? `<div style="font-size: 12px; white-space: nowrap;">${personName}</div>` : ""}
+              <div style="position: relative; flex: 1; height: 100%;">
                 ${imageUrl ? `<img src="${imageUrl}" style="width: 100%; height: 100%; object-fit: ${component.objectFit || "contain"}; border-radius: 50%;" />` : ""}
                 ${showLabel ? `<div style="position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 12px; font-weight: bold; color: #dc2626;">${labelText}</div>` : ""}
               </div>
@@ -891,8 +894,15 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
             </table>`;
         }
 
+        // 컴포넌트 값은 px로 저장됨 (캔버스는 pageWidth * MM_TO_PX px)
+        // 인쇄용 mm 단위로 변환: px / MM_TO_PX = mm
+        const xMm = component.x / MM_TO_PX;
+        const yMm = component.y / MM_TO_PX;
+        const widthMm = component.width / MM_TO_PX;
+        const heightMm = component.height / MM_TO_PX;
+        
         return `
-          <div style="position: absolute; left: ${component.x}px; top: ${component.y}px; width: ${component.width}px; height: ${component.height}px; background-color: ${component.backgroundColor || "transparent"}; border: ${component.borderWidth ? `${component.borderWidth}px solid ${component.borderColor}` : "none"}; padding: 8px; box-sizing: border-box;">
+          <div style="position: absolute; left: ${xMm}mm; top: ${yMm}mm; width: ${widthMm}mm; height: ${heightMm}mm; background-color: ${component.backgroundColor || "transparent"}; border: ${component.borderWidth ? `${component.borderWidth}px solid ${component.borderColor}` : "none"}; box-sizing: border-box; overflow: hidden;">
             ${content}
           </div>`;
       })
@@ -901,7 +911,7 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
     const watermarkHTML = generateWatermarkHTML(watermark, pageWidth, pageHeight);
 
     return `
-      <div style="position: relative; width: ${pageWidth}mm; min-height: ${pageHeight}mm; background-color: ${backgroundColor}; margin: 0 auto;">
+      <div class="print-page" style="position: relative; width: ${pageWidth}mm; min-height: ${pageHeight}mm; background-color: ${backgroundColor};">
         ${watermarkHTML}
         ${componentsHTML}
       </div>`;
@@ -933,20 +943,18 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
           <meta charset="UTF-8">
           <title>리포트 인쇄</title>
           <style>
-            * { box-sizing: border-box; }
+            * { box-sizing: border-box; margin: 0; padding: 0; }
             @page {
               size: A4;
-              margin: 10mm;
+              margin: 0;
             }
             @media print {
-              body { margin: 0; padding: 0; }
+              html, body { width: 210mm; height: 297mm; }
               .print-page { page-break-after: always; page-break-inside: avoid; }
               .print-page:last-child { page-break-after: auto; }
             }
             body {
               font-family: 'Malgun Gothic', 'Apple SD Gothic Neo', sans-serif;
-              margin: 0;
-              padding: 20px;
               -webkit-print-color-adjust: exact;
               print-color-adjust: exact;
             }
@@ -1070,15 +1078,15 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
                   const barcodeImage = await generateBarcodeImage(component);
                   return { ...component, barcodeImageBase64: barcodeImage };
                 } catch {
-                  return component;
+              return component;
                 }
               }
               return component;
             })
-          );
+                );
           return { ...page, components: componentsWithBase64 };
         })
-      );
+                );
 
       // 쿼리 결과 수집
       const queryResults: Record<string, { fields: string[]; rows: Record<string, unknown>[] }> = {};