Sharing Files On Webex



Webex by Cisco is one of the legacy web meeting platforms and that shows in the options they offer presenters for sharing PowerPoint slides during meetings. Their approach is different from that of Microsoft Teams or Zoom and they offer fewer options that don’t offer as good an experience for the presenter and meeting attendees.

As a business professional, what are the biggest frustrations, challenges, or struggles you have creating & delivering virtual presentations? Let me know here so I can create articles and videos to solve the biggest issues. Thanks.

Share your Content in Webex Using Webex, you can share your computer screen with all the participants. In order to share audio along with your content, you must choose the 'Optimize for motion and video' sharing method. See Step 3 below. This is a tutorial about how to upload files into WebEx meeting center before the meeting. Within the meeting, you could also share a file from your computer.

  • Immersive Share. Create a more immersive sharing experience by turning your shared content into your meeting background with your video overlayed on top. Webex automatically sets your status when you’re in a meeting, sharing your screen, and out.
  • Included in every Webex plan is the ultimate team collaboration platform for messaging, file-sharing, whiteboarding, and getting stuff done. Skip to content. Meet your virtual assistant. Meet Webex assistant. Try Webex Assistant free, for 15 days, when you sign up for a paid account.
  • Learn how you can share your screen or an application while in a Webex Meetings video conference. This short video shows you how to share different content t.

The screen-based approach

Webex was built when the model for sharing content during a web meeting was to share your screen or don’t share at all. This shows in their sharing approach. You have the traditional option to share your entire screen which works the way you expect it to. The attendees see everything on your screen.

Webex also offers sharing an application in a meeting but it still works on the screen-based approach. The attendees see your entire screen but the only visible part is the application you are sharing. If your application only takes up a quarter of the screen, the attendees see three-quarters of the screen blank and your application small in one corner, as shown in this screen capture of an attendee screen while showing a PowerPoint Slide Show running in the PowerPoint window.

If another application is partially covering up part of the application you are sharing, that portion is greyed out for the attendees [Late 2020 update: With the new version of Webex, a non-shared window on top of a shared window does not cause that part of the shared window to be greyed out. The audience continues to see the full shared window.].

The application sharing is not window based. If you have two windows open for that application, say two PowerPoint files, when you share the PowerPoint application, the attendees will see both PowerPoint windows on the screen. The only way to hide one is to minimize it to the toolbar.

Webex allows more than one application to be shared at a time because it is just making more of the shared screen visible to the attendees. If one application is on top of the other, that’s what the attendees see on the screen. When sharing an application, you need to stop sharing that application if you don’t want the attendees to still see it. This is a different approach to switching what content you share with attendees in a meeting.

Files

Webex also always shows your cursor on the screen, even if it is not within the window of the application you are sharing. As the cursor moves, the attendees see it moving.

(The Webex documentation on sharing content in a meeting is here if you want to learn more about the options.)

Sharing slides only

If you want to share your slides in Slide Show mode with the slides full screen and you can’t see anything else on the screen, the best option is to share your screen when in Slide Show mode. This will work well.

Presenter View with 1 screen

Unlike Teams or Zoom that offer ways to use PowerPoint’s Presenter View Preview mode to share your slides with the attendees while you see your notes, this is not possible in Webex. If you use Presenter View Preview and share the PowerPoint application, the attendees see all of Presenter View, including your notes and the next build/slide. Even the option of using Google Slides Presenter View in a browser (video here) does not work because Webex shares all browser windows when you share the browser app, including the one with your notes and slide previews. The only way to use Presenter View in Webex to share the slides with the audience while you see your notes is to have two screens. If you only have your laptop and don't have room for a second screen, one option is to use a video capture card to create a second 'virtual' screen as I explain in this article and video.

Presenter View with 2 screens

If you have two screens (article with options for adding an additional screen) you can use Presenter View in Webex. Share the screen with the Slide Show on it and the attendees will see your slides only. The downside is that Webex puts the meeting controls at the top of the Slide Show screen because it is being shared. Attendees will see your cursor move to the controls and when the controls drop down that part of your slide is covered up with grey rectangles.

Sharing the Slide Show in the PowerPoint window

Another option for sharing slides in a virtual meeting is to use Reading View in PowerPoint where the slide show runs in the PowerPoint window. This can allow you to use a PDF of your notes on the screen beside the PowerPoint window (article on using this method in Zoom). As explained above, the attendees will see your slides in only a portion of the screen (as shown in the screen capture above) and they will see your cursor moving in the grey area of the screen as you scroll through your notes.

Seeing your notes on a second device

If you only have one screen or don’t want to use Presenter View, one option to consider is to create your speaking notes as a PDF (article here) and display them on a tablet that is positioned beside the screen. You can display the slides full screen in Slide Show so the attendees see a full screen slide and scroll through the notes on the tablet when speaking.

Sharing a file

Webex also offers an option to share a file that is not open already. You select the file from a file explorer style window. Unfortunately this also appears to be a legacy module because if you select a modern PowerPoint file it gives you a warning that animation and other dynamic content will not work if you use this share file option. This means that what gets shared may not be the same as what you have designed. This uncertainty rules out this option in my mind.

Use the Optimize for video option

Webex, like Zoom, has an option to set if you want to share video during the meeting. It is not mandatory, but the quality improves for the attendees. Not only does the quality of videos improve, but any animation that has movement or any Morph transitions improve dramatically as well. Without this setting, any motion animations or transitions appear jerky to the attendees. In the sharing dialog, select the option in the top left corner to “Optimize for motion and video”. I suggest you use this mode all the time as it will make any movement in your PowerPoint presentation appear smoother to the attendees. If you get a warning message about the resolution being reduced, I have found that you can safely dismiss it as the quality appears the same in my experience.

Desktop as a canvas

Because Webex uses the screen sharing approach, you may want to consider whether you want to use your desktop as a canvas as explained in this article and video.

Recommendations

Because Webex uses a screen-based approach to sharing, the best experience for attendees is when you share your screen, not an application. If you don’t need to see any notes, share the full screen Slide Show. If you want to see your notes in Presenter View, you will need two screens so you can share the Slide Show screen in the meeting while seeing Presenter View on the other screen. If you want to see your notes and not use Presenter View, your best option is to use two screens and run Slide Show full screen on one screen and look at your notes on the other screen in PDF or Word.

If you have one screen and want to see your notes in Acrobat and share your slides in a PowerPoint window, you will have to make the slides take up as much of the screen as possible while still being able to see your notes document. The attendees will see a blank area of the screen where the PDF is displayed and see your cursor move as you scroll through your notes but Webex doesn’t offer any better option. You may want to consider the option to have notes on a tablet beside the screen that has the slides full-screen in Slide Show mode because the slides will be larger for the attendees.

Dave Paradi has over twenty years of experience delivering customized training workshops to help business professionals improve their presentations. He has written nine books and over 100 articles on the topic of effective presentations and his ideas have appeared in publications around the world. His focus is on helping corporate professionals visually communicate the messages in their data so they don’t overwhelm and confuse executives. Dave is one of less than ten people in North America recognized by Microsoft with the Most Valuable Professional Award for his contributions to the Excel and PowerPoint communities. He regularly presents highly rated sessions at national and regional conferences of financial professionals.

Contents

Your user role in a meeting determines your level of file sharing. The type of files you can share include documents, presentations, and videos.

About Sharing Files

File sharing is ideal for presenting information that you do not need to edit during the meeting, such as a video or slide presentation. Participants can do the following:

  • View a media file, such as a video, without the need for special software or hardware.
  • View any animation and transition effects on shared Microsoft PowerPoint slides.

After a meeting starts, you can open a presentation or document to share. You do not need to select it or “load” it before the meeting.

At any time during a meeting, you can grant participants privileges that allow them to annotate, save, print, and display different views of the shared content.

Granting Sharing Privileges

Procedure
Step 1 In the meeting window, select Participant > Assign Privileges.

The Participant Privileges dialog box appears.

Step 2Grant or remove a privilege, as follows:
  • To grant a specific privilege, select its check box.
  • To grant all privileges, select Assign all privileges.
  • To remove a privilege, clear its check box.
  • To revert to the preset privileges, select Reset to Meeting Defaults.
Step 3Select Assign.

Sharing a File

You can share a file, such as a document, presentation, or video, that resides on your computer. Participants view the shared file in their content viewers.

Procedure
Step 1Select Share > File.

The Share File dialog box appears.

Step 2Select the document or presentation that you want to share.
Step 3Select Open.

The shared document or presentation appears in the content viewer.

Note

You can share many of the popular media file types using the options. Some of the supported Microsoft Windows media file types include .wmv, .wma, .mp3, .mpg, .mpeg, .avi, .wav, .mp4, .qt, .mov and .flv. Some of the supported Mac OS media file types include AVI, DivX, .mkv and .GVI. Some of the unsupported media file types are .rmi, .mkv, .ram, .ra and RMVB.

Choosing an Import Mode for Presentation Sharing


Note

Changing the import mode does not affect presentations that you are currently sharing. To apply a new import mode to a shared presentation, close it first, and then share it again.

Before You Begin

This task is for Windows users only.

Procedure
Step 1 In the meeting window, select Meeting > Options.

The Meeting Options dialog box appears.

Step 2Select the Import Mode tab.
Step 3Select an import mode:
  • Universal Communications Format (UCF)—The default mode. Lets you display animations and slide transitions in Microsoft PowerPoint presentations. In the UCF mode, WebEx imports presentations more quickly than it does in the printer driver mode. However, pages or slides may not appear consistently across platforms.

  • Printer driver—Displays shared presentations as they appear when you print them, providing a consistent appearance of pages and slides across platforms. This mode does not support animations or slide transitions. In this mode, the first page or slide may appear quickly, but the total import time for all pages or slides is usually longer than it is in the UCF mode.

Step 4Select OK.

About Sharing a Whiteboard

Sharing a whiteboard allows you to draw objects and type text that all participants can see in their content viewers. You can also use a pointer to emphasize text or graphics on a whiteboard.

Other things you can do while sharing a whiteboard:

  • Display it at various magnifications, in miniature (thumbnails), and in full-screen view
  • Copy and paste images into it
  • Reorder its position in reference to any other whiteboards
  • Print it
  • Synchronize participants' displays with the display in your content viewer
  • Save it

Note

You can add multiple pages to a shared whiteboard. You can also share multiple whiteboards.

If you allow participants to annotate slides and pages, you and participants can draw and type on a whiteboard simultaneously. You can also allow participants to save, print, and display different views of shared whiteboards.

To share a whiteboard, select Share > Whiteboard.

Using Annotation Tools on Shared Content

In an online meeting, you can use annotation tools on shared content to annotate, highlight, explain, or point to information.

Annotation ToolDescription
Pointer

Lets you point out text and graphics on shared content. The pointer displays an arrow with your name and annotation color. To display the laser pointer, which lets you point out text and graphics on shared content using a red “laser beam,” click the downward-pointing arrow. Clicking this button again turns off the pointer tool.

Text

Lets you type text on shared content. Participants can view the text once you finish typing it and click your mouse in the content viewer, outside the text box.

To change the font, select Edit > Font. Clicking this button again turns off the text tool.

Line

Lets you draw lines and arrows on shared content. For more options, click the downward-pointing arrow.

Rectangle

Lets you draw shapes, such as rectangles and ellipses, on shared content. For more options, click the downward-pointing arrow. Clicking this button again closes the Rectangle tool.

Highlighter

Lets you highlight text and other elements in shared content. For more options, click the downward-pointing arrow. Clicking this button again closes the Highlighter tool.

Annotation Color

Displays the Annotation Color palette, on which you can select a color to annotate shared content. Clicking this button again closes the Annotation Color palette.

Eraser

Erases text and annotations or clears pointers on shared content. To erase a single annotation, click it in the viewer. For more options, click the downward-pointing arrow. Clicking this button again turns off the eraser tool.

Changing Views in a File or Whiteboard

Sharing files on webex app

When viewing a file or a whiteboard, you can switch the views that you see in the content viewer by selecting from the View menu located in the bottom left corner of your screen or by clicking one of the view icons.

ToolDescription

View > Show Thumbnail

Displays thumbnails of shared pages, slides, or whiteboards to the side of the main content. This tool helps you locate a page or slide quickly.

Full-Screen

Displays shared content in a full-screen view. Helps to ensure that participants can view all activity on your screen. Also helps to prevent participants from viewing or using other applications on their screens during a presentation.

Click ESC to return to the content viewer.

View > Rotate Page

For documents in landscape orientation, you can rotate the pages to the left or right so that they appear correctly in the content viewer.

Zoom In/Zoom Out

Lets you display shared content at various magnifications. Select a zoom in or zoom out icon then click the page, slide, or whiteboard to change its magnification. For more magnification options, select the downward-pointing arrow.

Sync Display for All

If you are a presenter, this option synchronizes the display of all meeting participants with your display. This helps to ensure that everyone is viewing the same page or slide, at the same magnification, as you.

Navigating Slides, Pages, or Whiteboards Using the Toolbar

Files

You can navigate to different pages, slides, or whiteboard “pages” in the content viewer. Each document, presentation, or whiteboard being shared appears on a tab at the top of the content viewer.

Procedure
Step 1 In the meeting window, select the tab for the document, presentation, or whiteboard that you want to display.

If there are more tabs than can appear at one time, select the down arrow button to see a list of remaining tabs, or use your keyboard arrows forward and back through all the tabs.

Step 2Click the arrow options on the toolbar to change the page or slide you are viewing.
Note
  • Alternatively, you can navigate to different pages or slides in a shared document, presentation, or whiteboard by opening the thumbnail viewer.
  • You can advance pages or slides automatically at a time interval that you specify.
  • If your presentation includes animations or slide transitions, you can use the toolbar or keyboard shortcuts to perform them.

Advancing Pages or Slides Automatically

Sharing Files On Webex Presentation

When sharing a document or presentation in the content viewer, you can automatically advance pages or slides at a specified interval. Once you start automatic page or slide advancement, you can stop it at any time.

Procedure
Step 1In the meeting window, select the tab for the document or presentation for which you want to advance pages or slides automatically.
Step 2Select View > Automatically Advance Pages.

The Automatically Advance Pages dialog box appears.

Step 3To change the time interval for advancing pages, do one of the following:
  • Click the up or down buttons to increase or decrease the interval
  • Type a specific time interval

To restart page or slide advancement once all pages or slides are displayed, check Return to beginning and continue advancing pages.

Step 4Select Start.
Step 5Close the Automatically Advance Pages dialog box by clicking the Close button in the upper-right corner of the dialog box.

The pages or slides continue to advance at the specified interval.

Stopping Automatic Page or Slide Advancement

Procedure
Step 1 If you closed the Automatically Advance Pages dialog box, select View > Automatically Advance Pages.

The Automatically Advance Pages dialog box appears.

Step 2Select Stop.

Animating and Adding Effects to Shared Slides

When sharing a Microsoft PowerPoint slide presentation you can animate text and slide transitions just as you can when using the Slide Show option in PowerPoint.


Note

To show slide animations and transitions, you must share the presentation as a Universal Communications Format (UCF) file. The UCF import mode automatically converts a PowerPoint file (.ppt) to a UCF file when you share it.

Before You Begin

Make sure that you are using Windows XP SP2 or later for the optimal display of your presentation.

Procedure
Step 1 Ensure that the content viewer has input focus by clicking in the viewer.

The content viewer has input focus if a blue border appears around the outside of the slide in the viewer.

Step 2On the toolbar, select the appropriate arrows to move through your presentation:
  • Select the drop-down arrow to select any page or slide
  • Select the left arrow to see the previous page or slide
  • Select the right arrow to see the next page or slide
Related Tasks

Adding New Pages to Shared Files or Whiteboards

When sharing a file or whiteboard in the content viewer, you can add a new, blank page for annotation.

Procedure
Step 1In the content viewer, select the tab for the document, presentation, or whiteboard to which you want to add a page or slide.
Step 2Select Edit > Add Page.

A new page appears in the content viewer at the end of the currently selected document, presentation, or whiteboard.

Tip

If you have added multiple pages to a shared file or whiteboard tab, you can view thumbnails to make it easy to view and navigate around your added pages.

Related References

Pasting Images in Slides, Pages or Whiteboards

If you copy a bitmap image to your computer's clipboard, you can paste it into a new page, slide, or whiteboard in the content viewer.

Before You Begin

You can paste any type of bitmap image, such as a GIF, JPEG, BMP, or TIF image in the content viewer. Other types of images—such as EPS or Photoshop (PSD) images—are not supported.

Procedure
Step 1 In the content viewer, select the tab for the document, presentation, or whiteboard in which you want to paste an image.
Step 2Select Edit > Paste As New Page.

The image appears on a new page in the content viewer at the end of the currently selected document, presentation, or whiteboard.

Managing Views of Presentations, Documents, or Whiteboards

Zooming In or Out

Using the tools on the content viewer toolbar, you can do the following:

  • Zoom in to or out from a page, slide, or whiteboard
  • Adjust the size of a page, slide, or whiteboard to fit the content viewer
  • Adjust the size of a page, slide, or whiteboard to fit it width in the content viewer
  • Turn off the Zoom tool at any time
ToDo This

Zoom in to or out from a page, slide, or whiteboard

On the content viewer toolbar:

  • Select the Zoom In or Zoom Out button, and then drag your mouse to the area. Release your mouse button.
  • To zoom in or out to a preset percentage, select the downward-pointing arrow to the left of the Zoom In/Zoom Out button, and then choose the percentage.

Adjust the size of a page, slide, or whiteboard within the content viewer

On the toolbar, select the downward-pointing arrow to the left of the Zoom In/Zoom Out buttons.

Turn off a zoom tool

On the toolbar, click the Zoom In/Zoom Out button.

Controlling Full-Screen or Thumbnail View

You can maximize the size of a page, slide, or whiteboard in the content viewer to fit your monitor's entire screen. A full-screen view replaces the normal meeting window view. You can return to a normal view at any time.


Note

If a meeting presenter displays a full-screen view of a page, slide, or whiteboard, participant screens automatically display a full-screen view as well. However, participants can control full-screen view independently in their meeting windows.

To Do This

Display a full-screen view

On the content viewer toolbar, select the Full Screen icon.

Return to a normal view

On the Meeting Controls panel, select the stop icon to return to the main window.

View thumbnails of slides, pages, or whiteboards

  1. In the content viewer, select the tab for the document, presentation, or whiteboard for which you want to view thumbnails.
  2. On the content viewer toolbar, select View > Show Thumbnails.

Thumbnails of all pages or slides in the selected document, presentation, or whiteboard appear in the thumbnail viewer, in the left column.

To display any page or slide in the content viewer, double-click its miniature in the thumbnail viewer.

Note

Participants must have both the View thumbnails and View any page privileges to display a miniature of a page or slide at full size in the content viewer.

Close the thumbnail viewer

On the content viewer toolbar, select View > Hide Thumbnail.

Synchronize participant views of slides, pages, or whiteboards

On the View menu at the bottom of the window, select Sync Display for All.

Clearing Annotations and Pointers

You can clear any annotations made by you or another participant on a shared page, slide, or whiteboard in the content viewer. You can clear:

  • All annotations at once
  • Specific annotations
  • If you are the presenter or host, clear all annotations you have made

You can also clear your own pointers on all shared slides, pages, or whiteboards in the content viewer. If you are a presenter, you can also clear all participant pointers.

ToDo This

Clear all annotations on a shared page, slide, or whiteboard

  1. On the annotation toolbar, click the downward-pointing arrow to the right of the Eraser Tool icon.
  2. Choose Clear All Annotations.
Note

Only annotations on the page or slide that currently appears in your content viewer are cleared. Annotations on other pages or slides are not cleared. If you are the host or presenter, you can clear all the annotations you've made.

Clear all annotations you have added to a shared page, slide, or whiteboard

  1. On the annotation toolbar, click the downward-pointing arrow to the right of the Eraser Tool icon.
  2. Choose Clear My Annotations.

Clear specific annotations on a shared page, slide, or whiteboard

  1. On the toolbar, click the Eraser Tool icon.Your mouse pointer changes to an eraser.
  2. Click the annotation you want to clear.

Turn off the eraser tool

On the toolbar, click the Eraser Tool icon.

Clear your own pointer on all shared slides, pages, or whiteboards

  1. On the toolbar, click the downward-pointing arrow to the right of the Eraser Tool icon.
  2. Choose Clear My Pointer.

Saving a Presentation, Document, or Whiteboard

Sharing

You can save any shared document, presentation, or whiteboard that appears in the content viewer. A saved file contains all the pages or slides in the document, presentation, or whiteboard that is currently displayed in the content viewer, including any annotations and pointers that you or other attendees added to them.

MS Word, Excel and PowerPoint files are saved in PDF format. Audio and video files are saved in their original formats.

Once you save a new document, presentation, or whiteboard to a file, you can save it again to overwrite the file or save a copy to another file.

Saving a New File


Tip

To save changes to a document, presentation, or whiteboard that was previously saved, simply choose File > Save > Document.

Procedure
Step 1 On the File menu, choose Save > Document.
Step 2Choose a location at which to save the file.
Step 3Type a name for the file in the File name box.

Saving a Copy of a File

This task describes how to save a copy of a document, presentation, or whiteboard.

ProcedureSharing documents webex
Step 1 On the File menu, choose Save As > Document.
Step 2Do either or both of the following:
  • Type a new name for the file.
  • Choose a new location at which to save the file.

Opening a Saved File

If you saved a document, presentation, or whiteboard that appeared in the content viewer during a meeting, you can do either of the following:

  • Open the file in the content viewer during another meeting for sharing. Only a presenter or participants who have the Share documents privilege can open a saved file during a meeting.
  • Open the file at any time on your computer's desktop by double-clicking the saved file.

This task describes how to open a saved file in the content viewer during a meeting.

Sharing Files Through Webex


Note

MS Word, Excel and PowerPoint files are saved in PDF format. Audio and video files are saved in their original formats.

Before You Begin

You must be a presenter or participant with Share documents privileges to open a saved file during a meeting.

Procedure

Sharing Files In Webex Meeting

Step 1 To open a saved file in the content viewer, select File > Open and Share.

The Share Document dialog box appears.

Step 2Select the document, presentation, or whiteboard file that you want to open.
Step 3Select Open.

Printing a File

You can print any shared presentations, documents, or whiteboards that appear in your content viewer. A printed copy of shared content includes all added annotations and pointers.

Procedure
Step 1In the content viewer, select the tab for the document, presentation, or whiteboard that you want to print.
Step 2Select File > Print > Document.
Step 3Select the printing options that you want to use, and then print the document.
Note

When printing shared content in the content viewer, WebEx resizes it to fit on the printed page. However, for whiteboards, WebEx prints only the content that lies within the dashed lines on the whiteboard.

Using Application Sharing

You can use application sharing to show all meeting participants one or more applications on your computer. Application sharing is useful for demonstrating software or editing documents during a meeting.

Participants can view the shared application, including all mouse movements without having to run the application that you are sharing on their computers.

Procedure

Sharing Files On Webex Conference

Step 1 To start application sharing, select Share > Application.

The list of all applications currently running on your computer is displayed.

Step 2Do one of the following:
  • If the application you want to share is currently running, select it in the list to begin sharing it.
  • If the application you want to share is not currently running, select Other Application. The Other Application dialog box appears, showing a list of all applications on your computer. Select the application, and then select Share.

Your application appears in a sharing window on participant screens.

Step 3 To share an additional application, select the application that you want to share:
  • If that application is currently running, select Share.
  • If the application is not currently running, select Share Application in the Meeting Controls panel. You can also find it by using File Explorer or any other tool you use to locate applications on your computer. When you open it, it appears with the Share button

Your application appears in a sharing window on participant screens.

Tip

When you open any application that you have minimized, it opens with the sharing buttons in the upper-right corner.

Step 4To stop application sharing, do one of the following:
  • To stop sharing a specific application, select the Stop Sharing button on the title bar of the application that you no longer want to share.
  • To stop sharing all applications, select the Stop Sharing button in the Meeting Controls panel.

Participants can no longer view your applications.

Using Desktop Sharing

You can share the entire content of your computer, including any applications, windows, and file directories that reside on it. Participants can view your shared desktop, including all mouse movements.

Procedure
Step 1 To start desktop sharing, select Share > Desktop.

Your desktop appears in a sharing window on participants' screens.

Step 2To stop desktop sharing, select the Stop Sharing button in the Meeting Controls panel.

Using Web Browser Sharing

A presenter uses web browser sharing to show all meeting participants all web pages that he or she accesses in a browser. Web browser sharing is useful for showing participants web pages on the Internet, or the presenter's private intranet or computer.

Participants can view the presenter's web browser, including mouse movements, in a sharing window on their screens.

Procedure
Step 1 To start web browser sharing, select Share > Web Browser.

Your default web browser opens.

Step 2Go to a web page in your browser.
Note

Participants view all new web browser windows that you open. You can show participants several web pages simultaneously.

Step 3To stop web browser sharing, select the Stop button on the title bar of the application that you no longer want to share.