diff --git a/klp-ui/src/views/wms/coil/panels/LabelRender/index.vue b/klp-ui/src/views/wms/coil/panels/LabelRender/index.vue
index c13e0763..7777da2d 100644
--- a/klp-ui/src/views/wms/coil/panels/LabelRender/index.vue
+++ b/klp-ui/src/views/wms/coil/panels/LabelRender/index.vue
@@ -150,17 +150,21 @@ export default {
 
         // 5. 用html2canvas生成高清Canvas（与批量导出完全一致）
         // 关键：直接截图 labelContainer，与批量打印完全一致
+        // 确保canvas的宽高与labelContainer的实际尺寸一致
+        const containerWidth = labelContainer.offsetWidth || labelContainer.scrollWidth;
+        const containerHeight = labelContainer.offsetHeight || labelContainer.scrollHeight;
+        
         const canvas = await html2canvas(labelContainer, {
           backgroundColor: '#ffffff',
           scale: 3,
           useCORS: true,
           // 让 html2canvas 为频繁读回优化 Canvas（与批量导出一致）
           willReadFrequently: true,
-          // 确保按元素尺寸截图（与批量导出完全一致）
-          width: labelContainer.offsetWidth,
-          height: labelContainer.offsetHeight,
-          windowWidth: labelContainer.scrollWidth,
-          windowHeight: labelContainer.scrollHeight,
+          // 确保按元素尺寸截图，明确指定宽高
+          width: containerWidth,
+          height: containerHeight,
+          windowWidth: containerWidth,
+          windowHeight: containerHeight,
         });
 
         // 5. 使用 pdf-lib 生成单页 PDF（占满整张纸，无边距）
@@ -170,21 +174,17 @@ export default {
 
         const pdfDoc = await PDFDocument.create();
         const imgPng = await pdfDoc.embedPng(canvas.toDataURL('image/png'));
+        // 确保页面尺寸正确：宽100mm，高80mm（横向）
         const page = pdfDoc.addPage([pageWidthPt, pageHeightPt]);
 
-        const imgW = imgPng.width;
-        const imgH = imgPng.height;
-        // 直接占满整个PDF页面，不留边距
-        // 确保图片按页面尺寸等比缩放，占满整张纸
-        const scale = Math.min(pageWidthPt / imgW, pageHeightPt / imgH);
-        const drawW = imgW * scale;
-        const drawH = imgH * scale;
-
-        // 居中放置（如果图片比例与页面不完全一致）
-        const x = (pageWidthPt - drawW) / 2;
-        const y = (pageHeightPt - drawH) / 2;
-
-        page.drawImage(imgPng, { x, y, width: drawW, height: drawH });
+        // 直接拉伸填充整个PDF页面，不留边距，确保占满整张纸
+        // 从(0,0)开始，直接填充整个页面尺寸
+        page.drawImage(imgPng, { 
+          x: 0, 
+          y: 0, 
+          width: pageWidthPt, 
+          height: pageHeightPt 
+        });
 
         const pdfBytes = await pdfDoc.save();
         const blob = new Blob([pdfBytes], { type: 'application/pdf' });