PDF contents updated

Author: SF2381

Document-Processing/PDF/PDF-Library/javascript/Open-and-save-PDF-files.md

@@ -1,7 +1,7 @@
 ---
 layout: post
-title: Open and save PDF files in JavaScript PDF library | Syncfusion
-description: Learn to load and save PDFs in Syncfusion JavaScript PDF library using URLs, base64 strings, or byte arrays with server-backed services.
+title: Open and save PDF files using JavaScript PDF library | Syncfusion
+description: Learn to load and save PDFs in Syncfusion JavaScript PDF library using data as base64 strings or byte arrays.
 platform: document-processing
 control: PDF
 documentation: ug
@@ -12,70 +12,65 @@ domainurl: ##DomainURL##
 
 ## Opening an existing PDF document
 
-Open an existing PDF document using the `PdfDocument` class with the specified string data.
+Open an existing PDF document using the `PdfDocument` class with the specified PDF data.
 
-```javascript
+```typescript
 // Load an existing PDF document from string data
-let document: PdfDocument = new PdfDocument("Input.pdf");
-
+let document: PdfDocument = new PdfDocument(data);
 ```
 
- ## Opening an existing PDF document from a byte array
+The PdfDocument constructor can accept PDF data in either Base64 string or Uint8Array format. Here’s a quick example for both approaches:
 
-Open an existing PDF document using the `PdfDocument` class with the specified byte array.
+### Using Base64 String
+
+Open an existing PDF document using the `PdfDocument` class with the specified PDF data as Base64 string.
 
 ```javascript
-// Load the PDF data from a file
-const inputPDFByteArray: Uint8Array = new Uint8Array(fs.readFileSync('Input.pdf'));
-// Create a new PdfDocument instance using the byte array
-const loadedDocument = new PdfDocument(inputPDFByteArray);
+let data: string = 'JVBERi0xLjcNJeLjz9MNCjEyNSAw...........TU3MTQNCiUlRU9GDQo=';
+// Load an existing PDF document from data as Base64 string
+let document: PdfDocument = new PdfDocument(data);
 ```
 
-## Opening an Encrypted PDF document
+### Using Uint8Array
 
-Open an encrypted PDF document using the `PdfDocument` class by providing the correct password.
+Open an existing PDF document using the `PdfDocument` class with the specified PDF data as Uint8Array.
 
 ```javascript
-// Load an existing PDF document from string data
-let document: PdfDocument = new PdfDocument("Input.pdf", "password");
+let binaryData: Uint8Array = Uint8Array.from(data);
+// Load an existing PDF document from data as Uint8Array
+let document: PdfDocument = new PdfDocument(binaryData);
 ```
 
-## Opening an Encrypted PDF document from a byte array
+## Opening an Encrypted PDF document with password
 
-Open an encrypted PDF document from a byte array using the `PdfDocument` class by providing the correct password.
+Open an encrypted PDF document using the `PdfDocument` class by providing the correct password.
 
 ```javascript
-// Load the PDF data from a file
-const inputPDFByteArray: Uint8Array = new Uint8Array(fs.readFileSync('Input.pdf'));
-// Load an existing PDF document from string data
-let document: PdfDocument = new PdfDocument(inputPDFByteArray, "password");
+// Load an existing PDF document with password
+let document: PdfDocument = new PdfDocument(data, "password");
 ```
 
-## Saving a PDF document
+## Save and download a PDF document in browser environment
 
-Save the manipulated PDF document using the `Save` method of `PdfDocument` class with the specified string data.
+Save and download the PDF document using the `save` method of `PdfDocument` class with the specified file name.
 
 ```javascript
-// Load an existing PDF document from string data
-let document: PdfDocument = new PdfDocument("Input.pdf");
-//To-Do some manipulation
-//To-Do some manipulation
-// Save the PDF document
-document.save('Output.pdf');
+// Load an existing PDF document
+let document: PdfDocument = new PdfDocument(data);
+// To-Do some manipulation
+// Save and download the PDF document to the specified filename.
+document.save('output.pdf');
 ```
 
-## Saving a PDF Document from a byte array
+## Saving a PDF document to byte array
 
-Open an existing PDF document using the `PdfDocument` class with the specified byte array.
+Save the modified PDF document to the specified byte array using the `save` method available in `PdfDocument` class.
 
 ```javascript
-// Load the PDF data from a file
-const inputPDFByteArray: Uint8Array = new Uint8Array(fs.readFileSync('Input.pdf'));
-// Create a new PdfDocument instance using the byte array
-const loadedDocument = new PdfDocument(inputPDFByteArray);
+// Load an existing PDF document
+let document: PdfDocument = new PdfDocument(data);
 //To-Do some manipulation
-//To-Do some manipulation
-// Save the document
+// Save and get PDF data as byte array.
 let data: Uint8Array = document.save();
 ```
 
@@ -84,12 +79,11 @@ let data: Uint8Array = document.save();
 After the document manipulation and save operation are completed, you should close the instance of `PdfDocument`, in order to release all the memory consumed by PDF DOM. The following code example illustrates how to destroy a `PdfDocument` instance.
 
 ```javascript
-// Load an existing PDF document from string data
-let document: PdfDocument = new PdfDocument("Input.pdf");
-//To-Do some manipulation
+// Load an existing PDF document
+let document: PdfDocument = new PdfDocument(data);
 //To-Do some manipulation
 // Save the PDF document
-document.save('Output.pdf');
+document.save('output.pdf');
 // Destroy the document
 document.destroy();
 ```