How to make the screenshot and share button not visible in the screen shot it self

I made a screen capture and share button for an AR app but I face a problem 1. I don't want the share button itself to be visible in the screenshot plz tell me what changes are to be made to do this I attached my script below

 using UnityEngine;
 using System.Collections;
 using System.Runtime.InteropServices;
 using System.IO;
 using System;
 
 /*
  * https://github.com/ChrisMaire/unity-native-sharing
  */
 
 public class Test : MonoBehaviour {
     public string ScreenshotName = "AR_FLAG.png";
 
     public void ShareScreenshotWithText(string text)
     {
         string screenShotPath = Application.persistentDataPath + "/" + ScreenshotName;
         if(File.Exists(screenShotPath)) File.Delete(screenShotPath);
 
         ScreenCapture.CaptureScreenshot(ScreenshotName);
 
         StartCoroutine(delayedShare(screenShotPath, text));
     }
 
     //CaptureScreenshot runs asynchronously, so you'll need to either capture the screenshot early and wait a fixed time
     //for it to save, or set a unique image name and check if the file has been created yet before sharing.
     IEnumerator delayedShare(string screenShotPath, string text)
     {
         while(!File.Exists(screenShotPath)) {
             yield return new WaitForSeconds(.0f);
         }
 
         NativeShare.Share(text, screenShotPath, "", "", "image/png", true, "");
     }
 
     //---------- Helper Variables ----------//
     private float width
     {
         get
         {
             return Screen.width;
         }
     }
 
     private float height
     {
         get
         {
             return Screen.height;
         }
     }
 
 
     //---------- Screenshot ----------//
     public void Screenshot()
     {
         // Short way
         StartCoroutine(GetScreenshot());
     }
 
     //---------- Get Screenshot ----------//
     public IEnumerator GetScreenshot()
     {
         yield return new WaitForEndOfFrame();
 
         // Get Screenshot
         Texture2D screenshot;
         screenshot = new Texture2D((int)width, (int)height, TextureFormat.ARGB32, false);
         screenshot.ReadPixels(new Rect(0, 0, width, height), 0, 0, false);
         screenshot.Apply();
 
         // Save Screenshot
         Save_Screenshot(screenshot);
     }
 
 
     //---------- Save Screenshot ----------//
     private void Save_Screenshot(Texture2D screenshot)
     {
         string screenShotPath = Application.persistentDataPath + "/" + DateTime.Now.ToString("dd-MM-yyyy_HH:mm:ss") + "_" + ScreenshotName;
         File.WriteAllBytes(screenShotPath, screenshot.EncodeToJPG());
 
         // Native Share
         StartCoroutine(DelayedShare_Image(screenShotPath));
     }
 
     //---------- Clear Saved Screenshots ----------//
     //public void Clear_SavedScreenShots()
    // {
         //string path = Application.persistentDataPath;
 
         //DirectoryInfo dir = new DirectoryInfo(path);
         //FileInfo[] info = dir.GetFiles("*.png");
 
         //foreach (FileInfo f in info)
        // {
             //File.Delete(f.FullName);
       //  }
    // }
 
     //---------- Delayed Share ----------//
     private IEnumerator DelayedShare_Image(string screenShotPath)
     {
         while (!File.Exists(screenShotPath))
         {
             yield return new WaitForSeconds(.05f);
         }
 
         // Share
         NativeShare_Image(screenShotPath);
     }
 
     //---------- Native Share ----------//
     private void NativeShare_Image(string screenShotPath)
    {
         string text = "Celebrate #Bahrain National Day with #AugmentedReality #Flag Point your own #ARflag and share with your friends #BahrainNationalDay #BahrainFlag #AR #BahrainFlagAR";
         string subject = "AR_FLAG";
        string url = "www.munfarid.org";
         string title = "Select Sharing app";
 
 #if UNITY_ANDROID
 
         subject = "AR_FLAG";
         text = "Celebrate #Bahrain National Day with #AugmentedReality #Flag Point your own #ARflag and share with your friends #BahrainNationalDay #BahrainFlag #AR #BahrainFlagAR";
 #endif
 
 #if UNITY_IOS
         subject = "Test subject.";
         text = "Test text";
 #endif
 
         // Share
         NativeShare.Share(text, screenShotPath, url, subject, "image/png", true, title);
     }
 }