Aspose.PDF for JavaScript via C++: AsposePdfAddWatermark, AsposePdfDe…

…leteWatermarks

english/javascript-cpp/_index.md

@@ -82,6 +82,8 @@ Such operations are very time consuming, so we recommend using Web Worker.
 | [AsposePdfValidatePDFA](./organize/asposepdfvalidatepdfa/) | Validate PDF/A compatibility a PDF-file. |
 | [AsposePdfFindHiddenText](./organize/asposepdffindhiddentext/) | Find hidden text in a PDF-file. |
 | [AsposePdfDeleteHiddenText](./organize/asposepdfdeletehiddentext/) | Delete hidden text from a PDF-file. |
+| [AsposePdfAddWatermark](./organize/asposepdfaddwatermark/) | Add watermark to a PDF-file. |
+| [AsposePdfDeleteWatermarks](./organize/asposepdfdeletewatermarks/) | Delete watermarks from a PDF-file. |
 
 
 ## Metadata PDF functions

english/javascript-cpp/organize/_index.md

@@ -36,6 +36,8 @@ url: /javascript-cpp/organize/
 | [AsposePdfValidatePDFA](./asposepdfvalidatepdfa/) | Validate PDF/A compatibility a PDF-file. |
 | [AsposePdfFindHiddenText](./asposepdffindhiddentext/) | Find hidden text in a PDF-file. |
 | [AsposePdfDeleteHiddenText](./asposepdfdeletehiddentext/) | Delete hidden text from a PDF-file. |
+| [AsposePdfAddWatermark](./asposepdfaddwatermark/) | Add watermark to a PDF-file. |
+| [AsposePdfDeleteWatermarks](./asposepdfdeletewatermarks/) | Delete watermarks from a PDF-file. |
 
 
 ## Detailed Description

english/javascript-cpp/organize/asposepdfaddwatermark/_index.md

@@ -0,0 +1,106 @@
+---
+title: "AsposePdfAddWatermark"
+second_title: Aspose.PDF for JavaScript via C++
+description: "Add watermark to a PDF-file."
+type: docs
+url: /javascript-cpp/organize/asposepdfaddwatermark/
+---
+
+_Add watermark to a PDF-file._
+
+```js
+function AsposePdfAddWatermark(
+    fileBlob,
+    fileName,
+    text,
+    fontName,
+    fontSize,
+    foregroundColor,
+    xPosition,
+    yPosition,
+    rotation,
+    isBackground,
+    opacity,
+    fileNameResult 
+)
+```
+
+**Parameters**:
+
+* **fileBlob** Blob object
+* **fileName** file name
+* **text** watermark text
+* **fontName** font name
+* **fontSize** font size
+* **foregroundColor** text color (hexadecimal format "#RRGGBB", where RR-red, GG-green and BB-blue hexadecimal integers)
+* **xPosition** x watermark position
+* **yPosition** y watermark position
+* **rotation** watermark rotation (0-360)
+* **isBackground** background (1 or 0)
+* **opacity** opacity (decimal)
+* **fileNameResult** result file name
+
+**Return**:
+
+JSON object
+
+* **errorCode** - code error (0 no error)
+* **errorText** - text error ("" no error)
+* **fileNameResult** - result file name
+
+
+**Web Worker example**:
+```js
+  /*Create Web Worker*/
+  const AsposePDFWebWorker = new Worker("AsposePDFforJS.js");
+  AsposePDFWebWorker.onerror = evt => console.log(`Error from Web Worker: ${evt.message}`);
+  AsposePDFWebWorker.onmessage = evt => document.getElementById('output').textContent = 
+    (evt.data == 'ready') ? 'loaded!' :
+      (evt.data.json.errorCode == 0) ? `Result:\n${DownloadFile(evt.data.json.fileNameResult, "application/pdf", evt.data.params[0])}` : `Error: ${evt.data.json.errorText}`;
+
+  /*Event handler*/
+  const ffileAddWatermark = e => {
+    const file_reader = new FileReader();
+    file_reader.onload = event => {
+      const text = "Aspose PDF";
+      const fontName = "Arial";
+      const fontSize = 32;
+      const foregroundColor = "#010101";
+      const xPosition = 100;
+      const yPosition = 100;
+      const rotation = 45;
+      const isBackground = 1;
+      const opacity = 0.5;
+      /*Add watermark to a PDF-file and save the "ResultPdfAddWatermark.pdf" - Ask Web Worker*/
+      AsposePDFWebWorker.postMessage({ "operation": 'AsposePdfAddWatermark', "params": [event.target.result, e.target.files[0].name, text, fontName, fontSize, foregroundColor, xPosition, yPosition, rotation, isBackground, opacity, "ResultPdfAddWatermark.pdf"] }, [event.target.result]);
+    };
+    file_reader.readAsArrayBuffer(e.target.files[0]);
+  };
+
+  /*Make a link to download the result file*/
+  const DownloadFile = (filename, mime, content) => {
+      mime = mime || "application/octet-stream";
+      var link = document.createElement("a"); 
+      link.href = URL.createObjectURL(new Blob([content], {type: mime}));
+      link.download = filename;
+      link.innerHTML = "Click here to download the file " + filename;
+      document.body.appendChild(link); 
+      document.body.appendChild(document.createElement("br"));
+      return filename;
+    }
+```
+**Simple example**:
+```js
+  var ffileAddWatermark = function (e) {
+    const file_reader = new FileReader();
+    file_reader.onload = (event) => {
+      /*Add watermark to a PDF-file and save the "ResultPdfAddWatermark.pdf"*/
+      const json = AsposePdfAddWatermark(event.target.result, e.target.files[0].name, "Aspose PDF", "Arial", 32, "#010101", 100, 100, 45, 1, 0.5, "ResultPdfAddWatermark.pdf");
+      if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult;
+      else document.getElementById('output').textContent = json.errorText;
+      /*Make a link to download the result file*/
+      DownloadFile(json.fileNameResult, "application/pdf");
+    };
+    file_reader.readAsArrayBuffer(e.target.files[0]);
+  };
+```

english/javascript-cpp/organize/asposepdfdeletewatermarks/_index.md

@@ -0,0 +1,77 @@
+---
+title: "AsposePdfDeleteWatermarks"
+second_title: Aspose.PDF for JavaScript via C++
+description:  "Delete watermarks from a PDF-file."
+type: docs
+url: /javascript-cpp/organize/asposepdfdeletewatermarks/
+---
+
+_Delete watermarks from a PDF-file._
+
+```js
+function AsposePdfDeleteWatermarks(
+    fileBlob,
+    fileName,
+    fileNameResult
+)
+```
+
+**Parameters**: 
+
+* **fileBlob** Blob object 
+* **fileName** file name 
+* **fileNameResult** result file name 
+
+**Return**: 
+JSON object 
+  * **errorCode** - code error (0 no error)
+  * **errorText** - text error ("" no error)
+  * **fileNameResult** - result file name
+
+
+**Web Worker example**:
+```js
+  /*Create Web Worker*/
+  const AsposePDFWebWorker = new Worker("AsposePDFforJS.js");
+  AsposePDFWebWorker.onerror = evt => console.log(`Error from Web Worker: ${evt.message}`);
+  AsposePDFWebWorker.onmessage = evt => document.getElementById('output').textContent = 
+    (evt.data == 'ready') ? 'loaded!' :
+      (evt.data.json.errorCode == 0) ? `Result:\n${DownloadFile(evt.data.json.fileNameResult, "application/pdf", evt.data.params[0])}` : `Error: ${evt.data.json.errorText}`;
+
+  /*Event handler*/
+  const ffilePdfDeleteWatermarks = e => {
+    const file_reader = new FileReader();
+    file_reader.onload = event => {
+      /*Delete watermarks from a PDF-file and save the "ResultPdfDeleteWatermarks.pdf" - Ask Web Worker*/
+      AsposePDFWebWorker.postMessage({ "operation": 'AsposePdfDeleteWatermarks', "params": [event.target.result, e.target.files[0].name, "ResultPdfDeleteWatermarks.pdf"] }, [event.target.result]);
+    };
+    file_reader.readAsArrayBuffer(e.target.files[0]);
+  };
+
+  /*Make a link to download the result file*/
+  const DownloadFile = (filename, mime, content) => {
+      mime = mime || "application/octet-stream";
+      var link = document.createElement("a"); 
+      link.href = URL.createObjectURL(new Blob([content], {type: mime}));
+      link.download = filename;
+      link.innerHTML = "Click here to download the file " + filename;
+      document.body.appendChild(link); 
+      document.body.appendChild(document.createElement("br"));
+      return filename;
+    }
+```
+**Simple example**:
+```js
+  var ffilePdfDeleteWatermarks = function (e) {
+    const file_reader = new FileReader();
+    file_reader.onload = (event) => {
+      /*Delete watermarks from a PDF-file and save the "ResultPdfDeleteWatermarks.pdf"*/
+      const json = AsposePdfDeleteWatermarks(event.target.result, e.target.files[0].name, "ResultPdfDeleteWatermarks.pdf");
+      if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult;
+      else document.getElementById('output').textContent = json.errorText;
+      /*Make a link to download the result file*/
+      DownloadFile(json.fileNameResult, "application/pdf");
+    };
+    file_reader.readAsArrayBuffer(e.target.files[0]);
+  };
+```