diff --git a/.gitignore b/.gitignore
index 60ea030a..9f0a174e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 node_modules/
 *.code-workspace
+.idea/
\ No newline at end of file
diff --git a/client-ionic/declarations/shared-operations.d.ts b/client-ionic/declarations/shared-operations.d.ts
new file mode 100644
index 00000000..7d910b50
--- /dev/null
+++ b/client-ionic/declarations/shared-operations.d.ts
@@ -0,0 +1,53 @@
+
+declare module '@stirling-pdf/shared-operations/functions/editMetadata' {
+    export type Metadata = {
+        Title: string | null | undefined;       // The title of the document.
+        Author: string | null | undefined;      // The author of the document.
+        Subject: string | null | undefined;     // The subject of the document.
+        Keywords: string[] | null | undefined;  // An array of keywords associated with the document.
+        Producer: string | null | undefined;    // The producer of the document.
+        Creator: string | null | undefined;     // The creator of the document.
+        CreationDate: Date | null | undefined;  // The date when the document was created.
+        ModificationDate: Date | null | undefined; // The date when the document was last modified.
+    }
+    export async function editMetadata(snapshot: string | Uint8Array | ArrayBuffer, metadata: Metadata): Promise<Uint8Array>;
+}
+
+declare module '@stirling-pdf/shared-operations/functions/extractPages' {
+    export async function extractPages(snapshot: string | Uint8Array | ArrayBuffer, pagesToExtractArray: number[]): Promise<Uint8Array>;
+    export async function createSubDocument(pdfDoc: typeof import("pdf-lib").PDFDocument, pagesToExtractArray: number[])
+}
+
+declare module '@stirling-pdf/shared-operations/functions/mergePDFs' {
+    export async function mergePDFs(snapshots: (string | Uint8Array | ArrayBuffer)[]): Promise<Uint8Array>;
+}
+
+declare module '@stirling-pdf/shared-operations/functions/organizePages' {
+    export async function organizePages(
+        snapshot: string | Uint8Array | ArrayBuffer,
+        operation: "CUSTOM_PAGE_ORDER" |
+                   "REVERSE_ORDER" |
+                   "DUPLEX_SORT" |
+                   "BOOKLET_SORT" |
+                   "ODD_EVEN_SPLIT" |
+                   "REMOVE_FIRST" |
+                   "REMOVE_LAST" |
+                   "REMOVE_FIRST_AND_LAST",
+        customOrderString: string): Promise<Uint8Array>;
+}
+
+declare module '@stirling-pdf/shared-operations/functions/rotatePages' {
+    export async function rotatePages(snapshot: string | Uint8Array | ArrayBuffer, rotation: number): Promise<Uint8Array>;
+}
+
+declare module '@stirling-pdf/shared-operations/functions/scaleContent' {
+    export async function scaleContent(snapshot: string | Uint8Array | ArrayBuffer, scaleFactor: number): Promise<Uint8Array>;
+}
+
+declare module '@stirling-pdf/shared-operations/functions/scalePage' {
+    export async function scalePage(snapshot: string | Uint8Array | ArrayBuffer, pageSize: {width:number,height:number}): Promise<Uint8Array>;
+}
+
+declare module '@stirling-pdf/shared-operations/functions/splitPDF' {
+    export async function splitPDF(snapshot: string | Uint8Array | ArrayBuffer, splitAfterPageArray: number[]): Promise<Uint8Array>;
+}
diff --git a/client-ionic/package.json b/client-ionic/package.json
index 01841cd8..a5696900 100644
--- a/client-ionic/package.json
+++ b/client-ionic/package.json
@@ -17,14 +17,15 @@
     "@capawesome/capacitor-file-picker": "^5.1.1",
     "@ionic/react": "^7.0.0",
     "@ionic/react-router": "^7.0.0",
+    "@stirling-pdf/shared-operations": "*",
     "@types/react-router": "^5.1.20",
     "@types/react-router-dom": "^5.3.3",
     "ionicons": "^7.0.0",
+    "pdf-lib": "^1.17.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-router": "^5.3.4",
-    "react-router-dom": "^5.3.4",
-    "@stirling-pdf/shared-operations": "*"
+    "react-router-dom": "^5.3.4"
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^5.16.5",
diff --git a/client-ionic/src/pages/Home.tsx b/client-ionic/src/pages/Home.tsx
index 9b0ab963..24708a73 100644
--- a/client-ionic/src/pages/Home.tsx
+++ b/client-ionic/src/pages/Home.tsx
@@ -1,23 +1,28 @@
 import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar, IonButton } from '@ionic/react';
-import ExploreContainer from '../components/ExploreContainer';
 import './Home.css';
-import "../../../server-node/public/wasm/pdfcpu-wrapper-browser.js"
-import { splitPDF } from '../utils/pdf-operations.js';
+import { rotatePages } from '../utils/pdf-operations.js';
 
 import { FilePicker } from '@capawesome/capacitor-file-picker';
 
-async function testFunction() {
-    console.log("Test Function for Button Click");
-    console.log(splitPDF);
+console.log(rotatePages);
+async function rotate90() {
+  console.log("Test rotate 90 with Button Click");
 
-    const result = await FilePicker.pickFiles({
-        types: ['application/pdf'],
-        multiple: true,
-    });
+  const pickedFiles = await FilePicker.pickFiles({
+    types: ['application/pdf'],
+    multiple: false,
+  });
+  const file = pickedFiles.files[0];
+  
+  const buffer = await file.blob?.arrayBuffer();
+  if (!buffer) return;
+  
+  const rotated = await rotatePages(buffer, 90)
 
-    console.log(result);
+  console.log(rotated);
 }
 
+
 const Home: React.FC = () => {
   return (
     <IonPage>
@@ -32,7 +37,7 @@ const Home: React.FC = () => {
             <IonTitle size="large">Blank</IonTitle>
           </IonToolbar>
         </IonHeader>
-        <IonButton onClick={testFunction}>Default</IonButton>
+        <IonButton onClick={rotate90}>Rotate 90</IonButton>
       </IonContent>
     </IonPage>
   );
diff --git a/client-ionic/src/utils/pdf-operations.js b/client-ionic/src/utils/pdf-operations.js
deleted file mode 100644
index 4974b1e4..00000000
--- a/client-ionic/src/utils/pdf-operations.js
+++ /dev/null
@@ -1,48 +0,0 @@
-// PDFLib gets importet via index.html script-tag
-import * as pdfcpuWraopper from "../../../server-node/public/wasm/pdfcpu-wrapper-browser.js";
-
-import { editMetadata as dependantEditMetadata} from "@stirling-pdf/shared-operations/functions/editMetadata.js";
-import { extractPages as dependantExtractPages } from "@stirling-pdf/shared-operations/functions/extractPages.js";
-import { impose as dependantImpose } from '@stirling-pdf/shared-operations/functions/impose.js';
-import { mergePDFs as dependantMergePDFs } from '@stirling-pdf/shared-operations/functions/mergePDFs.js';
-import { organizePages as dependantOrganizePages } from '@stirling-pdf/shared-operations/functions/organizePages.js';
-import { rotatePages as dependantRotatePages } from '@stirling-pdf/shared-operations/functions/rotatePages.js';
-import { scaleContent as dependantScaleContent} from '@stirling-pdf/shared-operations/functions/scaleContent.js';
-import { scalePage as dependantScalePage } from '@stirling-pdf/shared-operations/functions/scalePage.js';
-import { splitPDF as dependantSplitPDF } from '@stirling-pdf/shared-operations/functions/splitPDF.js';
-
-export async function editMetadata(snapshot, metadata) {
-    return dependantEditMetadata(snapshot, metadata, PDFLib);
-}
-
-export async function extractPages(snapshot, pagesToExtractArray) {
-    return dependantExtractPages(snapshot, pagesToExtractArray, PDFLib);
-}
-
-export async function impose(snapshot, nup, format) {
-    return dependantImpose(snapshot, nup, format, pdfcpuWraopper);
-}
-
-export async function mergePDFs(snapshots) {
-    return dependantMergePDFs(snapshots, PDFLib);
-}
-
-export async function organizePages(snapshot, operation, customOrderString) {
-    return dependantOrganizePages(snapshot, operation, customOrderString, PDFLib);
-}
-
-export async function rotatePages(snapshot, rotation) {
-    return dependantRotatePages(snapshot, rotation, PDFLib);
-}
-
-export async function scaleContent(snapshot, scaleFactor) {
-    return dependantScaleContent(snapshot, scaleFactor, PDFLib);
-}
-
-export async function scalePage(snapshot, pageSize) {
-    return dependantScalePage(snapshot, pageSize, PDFLib);
-}
-
-export async function splitPDF(snapshot, splitAfterPageArray) {
-    return dependantSplitPDF(snapshot, splitAfterPageArray, PDFLib);
-}
diff --git a/client-ionic/src/utils/pdf-operations.ts b/client-ionic/src/utils/pdf-operations.ts
new file mode 100644
index 00000000..83716144
--- /dev/null
+++ b/client-ionic/src/utils/pdf-operations.ts
@@ -0,0 +1,53 @@
+
+// Import injected libraries here!
+
+import { Metadata, editMetadata as dependantEditMetadata} from "@stirling-pdf/shared-operations/functions/editMetadata";
+import { extractPages as dependantExtractPages } from "@stirling-pdf/shared-operations/functions/extractPages";
+import { mergePDFs as dependantMergePDFs } from '@stirling-pdf/shared-operations/functions/mergePDFs';
+import { organizePages as dependantOrganizePages } from '@stirling-pdf/shared-operations/functions/organizePages';
+import { rotatePages as dependantRotatePages } from '@stirling-pdf/shared-operations/functions/rotatePages';
+import { scaleContent as dependantScaleContent} from '@stirling-pdf/shared-operations/functions/scaleContent';
+import { scalePage as dependantScalePage } from '@stirling-pdf/shared-operations/functions/scalePage';
+import { splitPDF as dependantSplitPDF } from '@stirling-pdf/shared-operations/functions/splitPDF';
+
+export async function editMetadata(snapshot: string | Uint8Array | ArrayBuffer, metadata: Metadata) {
+    return dependantEditMetadata(snapshot, metadata);
+}
+
+export async function extractPages(snapshot: string | Uint8Array | ArrayBuffer, pagesToExtractArray: number[]) {
+    return dependantExtractPages(snapshot, pagesToExtractArray);
+}
+
+export async function mergePDFs(snapshots: (string | Uint8Array | ArrayBuffer)[]) {
+    return dependantMergePDFs(snapshots);
+}
+
+export async function organizePages(
+        snapshot: string | Uint8Array | ArrayBuffer,
+        operation: "CUSTOM_PAGE_ORDER" |
+                "REVERSE_ORDER" |
+                "DUPLEX_SORT" |
+                "BOOKLET_SORT" |
+                "ODD_EVEN_SPLIT" |
+                "REMOVE_FIRST" |
+                "REMOVE_LAST" |
+                "REMOVE_FIRST_AND_LAST",
+        customOrderString: string) {
+    return dependantOrganizePages(snapshot, operation, customOrderString);
+}
+
+export async function rotatePages(snapshot: string | Uint8Array | ArrayBuffer, rotation: number) {
+    return dependantRotatePages(snapshot, rotation);
+}
+
+export async function scaleContent(snapshot: string | Uint8Array | ArrayBuffer, scaleFactor: number) {
+    return dependantScaleContent(snapshot, scaleFactor);
+}
+
+export async function scalePage(snapshot: string | Uint8Array | ArrayBuffer, pageSize: { width: number; height: number; }) {
+    return dependantScalePage(snapshot, pageSize);
+}
+
+export async function splitPDF(snapshot: string | Uint8Array | ArrayBuffer, splitAfterPageArray: number[]) {
+    return dependantSplitPDF(snapshot, splitAfterPageArray);
+}
diff --git a/client-ionic/tsconfig.json b/client-ionic/tsconfig.json
index 7a0abb4b..2bc4a5fb 100644
--- a/client-ionic/tsconfig.json
+++ b/client-ionic/tsconfig.json
@@ -16,6 +16,9 @@
     "noEmit": true,
     "jsx": "react-jsx"
   },
-  "include": ["src", "../shared-operations/packages/wasm", "../server-node/public/utils/pdfcpu-wrapper-node.js"],
+  "include": [
+    "src",
+    "declarations/*.d.ts"
+  ],
   "references": [{ "path": "./tsconfig.node.json" }]
 }
diff --git a/package-lock.json b/package-lock.json
index 90fc19b4..4bfa655a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,6 +19,7 @@
       "version": "0.0.0",
       "dependencies": {
         "@capacitor/core": "^5.5.0",
+        "@capacitor/filesystem": "^5.1.4",
         "@capawesome/capacitor-file-picker": "^5.1.1",
         "@ionic/react": "^7.0.0",
         "@ionic/react-router": "^7.0.0",
@@ -26,6 +27,7 @@
         "@types/react-router": "^5.1.20",
         "@types/react-router-dom": "^5.3.3",
         "ionicons": "^7.0.0",
+        "pdf-lib": "^1.17.1",
         "react": "^18.2.0",
         "react-dom": "^18.2.0",
         "react-router": "^5.3.4",
@@ -1967,6 +1969,14 @@
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
       "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
     },
+    "node_modules/@capacitor/filesystem": {
+      "version": "5.1.4",
+      "resolved": "https://registry.npmjs.org/@capacitor/filesystem/-/filesystem-5.1.4.tgz",
+      "integrity": "sha512-10EM1KvFMs+pTzxkcflspzxBWcX9sOnS9nTP5Afjr5hn4OxLrwTFySw2Z12Uv6jdN4OnhY3jXtDKXPljXvXILg==",
+      "peerDependencies": {
+        "@capacitor/core": "^5.1.1"
+      }
+    },
     "node_modules/@capawesome/capacitor-file-picker": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/@capawesome/capacitor-file-picker/-/capacitor-file-picker-5.1.1.tgz",
diff --git a/shared-operations/functions/editMetadata.js b/shared-operations/functions/editMetadata.js
index 05669944..2703c5b6 100644
--- a/shared-operations/functions/editMetadata.js
+++ b/shared-operations/functions/editMetadata.js
@@ -1,5 +1,6 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument, ParseSpeeds } from 'pdf-lib';
+
 
 /**
  * @typedef {Object} Metadata
@@ -17,13 +18,12 @@ import PDFLib from 'pdf-lib';
  * 
  * @param {Uint16Array} snapshot
  * @param {Metadata} metadata - Set property to null or "" to clear, undefined properties will be skipped.
- * @param {PDFLib} PDFLib
- * @returns 
+ * @returns Promise<Uint8Array>
  */
 export async function editMetadata(snapshot, metadata) {
     // Load the original PDF file
-    const pdfDoc = await PDFLib.PDFDocument.load(snapshot, {
-        parseSpeed: PDFLib.ParseSpeeds.Fastest,
+    const pdfDoc = await PDFDocument.load(snapshot, {
+        parseSpeed: ParseSpeeds.Fastest,
     });
 
     if(metadata.Title !== undefined)
diff --git a/shared-operations/functions/extractPages.js b/shared-operations/functions/extractPages.js
index cd88753a..5e229b87 100644
--- a/shared-operations/functions/extractPages.js
+++ b/shared-operations/functions/extractPages.js
@@ -1,15 +1,15 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument } from 'pdf-lib';
 
 export async function extractPages(snapshot, pagesToExtractArray) {
-    const pdfDoc = await PDFLib.PDFDocument.load(snapshot)
+    const pdfDoc = await PDFDocument.load(snapshot)
 
     // TODO: invent a better format for pagesToExtractArray and convert it.
     return createSubDocument(pdfDoc, pagesToExtractArray);
 };
 
 export async function createSubDocument(pdfDoc, pagesToExtractArray) {
-    const subDocument = await PDFLib.PDFDocument.create();
+    const subDocument = await PDFDocument.create();
 
     // Check that array max number is not larger pdf pages number
     if(Math.max(...pagesToExtractArray) >= pdfDoc.getPageCount()) {
diff --git a/shared-operations/functions/mergePDFs.js b/shared-operations/functions/mergePDFs.js
index 39094e8b..3799d9fc 100644
--- a/shared-operations/functions/mergePDFs.js
+++ b/shared-operations/functions/mergePDFs.js
@@ -1,12 +1,12 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument } from 'pdf-lib';
 
 export const mergePDFs = async (snapshots) => {
 
-    const mergedPdf = await PDFLib.PDFDocument.create(); 
+    const mergedPdf = await PDFDocument.create(); 
 
     for (let i = 0; i < snapshots.length; i++) {
-        const pdfToMerge = await PDFLib.PDFDocument.load(snapshots[i]);
+        const pdfToMerge = await PDFDocument.load(snapshots[i]);
 
         const copiedPages = await mergedPdf.copyPages(pdfToMerge, pdfToMerge.getPageIndices());
         copiedPages.forEach((page) => mergedPdf.addPage(page));
diff --git a/shared-operations/functions/organizePages.js b/shared-operations/functions/organizePages.js
index f63327b9..b92d975c 100644
--- a/shared-operations/functions/organizePages.js
+++ b/shared-operations/functions/organizePages.js
@@ -1,5 +1,5 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument } from 'pdf-lib';
 
 /**
  * @typedef {"CUSTOM_PAGE_ORDER"|"REVERSE_ORDER"|"DUPLEX_SORT"|"BOOKLET_SORT"|"ODD_EVEN_SPLIT"|"REMOVE_FIRST"|"REMOVE_LAST"|"REMOVE_FIRST_AND_LAST"} OrderOperation
@@ -14,8 +14,8 @@ import PDFLib from 'pdf-lib';
  * @returns 
  */
 export async function organizePages(snapshot, operation, customOrderString) {
-    const pdfDoc = await PDFLib.PDFDocument.load(snapshot);
-    let subDocument = await PDFLib.PDFDocument.create();
+    const pdfDoc = await PDFDocument.load(snapshot);
+    let subDocument = await PDFDocument.create();
     const copiedPages = await subDocument.copyPages(pdfDoc, pdfDoc.getPageIndices());
 
 
diff --git a/shared-operations/functions/rotatePages.js b/shared-operations/functions/rotatePages.js
index ca684a12..73bcb481 100644
--- a/shared-operations/functions/rotatePages.js
+++ b/shared-operations/functions/rotatePages.js
@@ -1,17 +1,17 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument, ParseSpeeds, degrees } from 'pdf-lib';
 
-export async function rotatePages (snapshot, rotation) {
+export async function rotatePages(snapshot, rotation) {
     // Load the original PDF file
-    const pdfDoc = await PDFLib.PDFDocument.load(snapshot, {
-        parseSpeed: PDFLib.ParseSpeeds.Fastest,
+    const pdfDoc = await PDFDocument.load(snapshot, {
+        parseSpeed: ParseSpeeds.Fastest,
     });
 
     const pages = pdfDoc.getPages();
 
     pages.forEach(page => {
         // Change page size
-        page.setRotation(PDFLib.degrees(rotation))
+        page.setRotation(degrees(rotation))
     });
 
     // Serialize the modified document
diff --git a/shared-operations/functions/scaleContent.js b/shared-operations/functions/scaleContent.js
index e61b330f..6fc21edb 100644
--- a/shared-operations/functions/scaleContent.js
+++ b/shared-operations/functions/scaleContent.js
@@ -1,10 +1,10 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument, ParseSpeeds } from 'pdf-lib';
 
 export async function scaleContent(snapshot, scaleFactor) {
     // Load the original PDF file
-    const pdfDoc = await PDFLib.PDFDocument.load(snapshot, {
-        parseSpeed: PDFLib.ParseSpeeds.Fastest,
+    const pdfDoc = await PDFDocument.load(snapshot, {
+        parseSpeed: ParseSpeeds.Fastest,
     });
 
     const pages = pdfDoc.getPages();
diff --git a/shared-operations/functions/scalePage.js b/shared-operations/functions/scalePage.js
index 567f1106..cfe5d621 100644
--- a/shared-operations/functions/scalePage.js
+++ b/shared-operations/functions/scalePage.js
@@ -1,10 +1,10 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument, ParseSpeeds } from 'pdf-lib';
 
 export async function scalePage(snapshot, pageSize) {
     // Load the original PDF file
-    const pdfDoc = await PDFLib.PDFDocument.load(snapshot, {
-        parseSpeed: PDFLib.ParseSpeeds.Fastest,
+    const pdfDoc = await PDFDocument.load(snapshot, {
+        parseSpeed: ParseSpeeds.Fastest,
     });
 
     const new_size = pageSize;
diff --git a/shared-operations/functions/splitPDF.js b/shared-operations/functions/splitPDF.js
index 24695cf6..0b1b8656 100644
--- a/shared-operations/functions/splitPDF.js
+++ b/shared-operations/functions/splitPDF.js
@@ -1,10 +1,10 @@
 
-import PDFLib from 'pdf-lib';
+import { PDFDocument } from 'pdf-lib';
 
 import { createSubDocument } from "./extractPages.js";
 
 export async function splitPDF(snapshot, splitAfterPageArray) {
-    const pdfDoc = await PDFLib.PDFDocument.load(snapshot)
+    const pdfDoc = await PDFDocument.load(snapshot)
 
     const numberOfPages = pdfDoc.getPages().length;