diff --git a/App/app/api/po/[id]/export/route.ts b/App/app/api/po/[id]/export/route.ts
index 61f6ccb..beff233 100644
--- a/App/app/api/po/[id]/export/route.ts
+++ b/App/app/api/po/[id]/export/route.ts
@@ -459,14 +459,49 @@ export async function GET(request: NextRequest, { params }: Props) {
     ws.getRow(SIG_ROW + 1).height = 14;
     ws.getRow(SIG_ROW + 2).height = 14;
 
-    // Left sig block (approver — the manager who authorized the PO)
-    if (signatureBase64) {
+    // Left signatory block (cols A-D). Position images by absolute pixels via native
+    // EMU offsets — ExcelJS's fractional-column anchors don't map cleanly to pixels.
+    const EMU = 9525; // EMU per pixel
+    const COL_PX = [22, 4, 28, 15, 8, 15, 15, 8, 16].map((w) => Math.round(w * 7 + 5));
+    const SIG_BLOCK_PX = COL_PX[0] + COL_PX[1] + COL_PX[2] + COL_PX[3]; // A-D
+    const anchorAt = (leftPx: number, row: number) => {
+      let x = 0;
+      for (let c = 0; c < COL_PX.length - 1; c++) {
+        if (leftPx < x + COL_PX[c]) {
+          return { nativeCol: c, nativeColOff: Math.round((leftPx - x) * EMU), nativeRow: row, nativeRowOff: 0 } as unknown as ExcelJS.Anchor;
+        }
+        x += COL_PX[c];
+      }
+      return { nativeCol: COL_PX.length - 1, nativeColOff: Math.round((leftPx - x) * EMU), nativeRow: row, nativeRowOff: 0 } as unknown as ExcelJS.Anchor;
+    };
+
+    const sigExt = signatureBase64 ? scaleToBox(signatureSize ?? { width: 360, height: 96 }, 165, 44) : null;
+    const sigLeft = sigExt ? Math.round((SIG_BLOCK_PX - sigExt.width) / 2) : 0; // centred over the name
+
+    // Stamp / seal — drawn FIRST so it sits BEHIND the signature, tucked to its right.
+    if (stampImg) {
+      const stampExt = scaleToBox(stampImg, 80, 66);
+      const stampLeft = sigExt
+        ? Math.min(SIG_BLOCK_PX - stampExt.width, sigLeft + sigExt.width - Math.round(stampExt.width * 0.35))
+        : SIG_BLOCK_PX - stampExt.width - 6;
+      const stampId = wb.addImage({
+        base64: stampImg.base64,
+        extension: stampImg.mime === "image/jpeg" ? "jpeg" : "png",
+      });
+      ws.addImage(stampId, {
+        tl: anchorAt(Math.max(0, stampLeft), SIG_ROW - 1),
+        ext: stampExt,
+        editAs: "oneCell",
+      });
+    }
+
+    // Approver signature — drawn AFTER the stamp (on top), centred over the name.
+    if (signatureBase64 && sigExt) {
       const imgType = signatureMime === "image/jpeg" ? "jpeg" : "png";
       const imgId = wb.addImage({ base64: signatureBase64, extension: imgType });
-      // Sized by pixels (aspect preserved) and placed inside the signatory box
       ws.addImage(imgId, {
-        tl: { col: 0.4, row: SIG_ROW - 1 } as unknown as ExcelJS.Anchor,
-        ext: scaleToBox(signatureSize ?? { width: 360, height: 96 }, 165, 44),
+        tl: anchorAt(Math.max(0, sigLeft), SIG_ROW - 1),
+        ext: sigExt,
         editAs: "oneCell",
       });
       sc(SIG_ROW,     1, "", { border: { top: thin(), left: thin(), right: thin() } });
@@ -485,19 +520,6 @@ export async function GET(request: NextRequest, { params }: Props) {
     ws.getRow(SIG_ROW + 2).height = 14;
     ws.getRow(SIG_ROW + 3).height = 14;
 
-    // Company stamp / seal — overlays the right of the approver's signatory block (aspect preserved)
-    if (stampImg) {
-      const stampId = wb.addImage({
-        base64: stampImg.base64,
-        extension: stampImg.mime === "image/jpeg" ? "jpeg" : "png",
-      });
-      ws.addImage(stampId, {
-        tl: { col: 2.35, row: SIG_ROW - 1 } as unknown as ExcelJS.Anchor,
-        ext: scaleToBox(stampImg, 80, 66),
-        editAs: "oneCell",
-      });
-    }
-
     // Right sig block (vendor)
     const vName = po.vendor?.name ?? "";
     sc(SIG_ROW,     6, vName, { font: fBold, border: { top: thin(), left: thin(), right: thin() }, align: alignC });