added 2 new root folders

shared-operations/functions/impose.js

@@ -0,0 +1,12 @@
+export async function impose(snapshot, nup, format, pdfcpuWrapper) {
+    return await pdfcpuWrapper.oneToOne([
+            "pdfcpu.wasm",
+            "nup",
+            "-c",
+            "disable",
+            'f:' + format,
+            "/output.pdf",
+            String(nup),
+            "input.pdf",
+        ], snapshot);
+}