How to Add a Watermark in PowerPoint

How to Add a Watermark in PowerPoint: The Short Answer

To add a watermark in PowerPoint, put it on the slide master. Word has a watermark gallery; PowerPoint does not. Microsoft’s own instructions are to open the slide master, add a text box with your watermark text, rotate it and give it a light color. Everything on the master appears on every slide built from it, behind the slide’s own content.

Add a Text Watermark to Every Slide

This is the classic DRAFT, CONFIDENTIAL or SAMPLE watermark. The steps are the same in PowerPoint for Microsoft 365 on Windows and Mac.

1. 1
   Open the slide master

   Choose View › Slide Master. In the thumbnail pane on the left, scroll to the top and select the first, larger thumbnail. That is the master; the smaller ones below it are layouts.

2. 2
   Draw a text box

   Choose Insert › Text Box, draw a box across the middle of the slide, and type your word.

3. 3
   Style it

   Select the text and choose a bold font, a large size and a light gray. Widen the letter spacing if you like (Home › Character Spacing).

4. 4
   Rotate it

   Drag the rotation handle at the top of the box to tilt the text, or set an exact angle under Shape Format › Rotate › More Rotation Options. Around 25–45 degrees reads well.

5. 5
   Close the master

   Choose Slide Master › Close Master View. The watermark now sits behind the content of every slide that uses the master.

For finer control than "light gray", right-click the text box, choose Format Shape, open Text Options › Text Fill, and raise the Transparency slider. A dark gray at 85% transparency stays visible on both white and colored slides.

Microsoft notes that title slides may not show the text. The usual reason is a layout setting: Hide Background Graphics. In Slide Master view, select the layout that is missing the watermark and clear Hide Background Graphics on the Slide Master tab. If the layout needs to hide the theme’s other graphics, add a copy of the watermark to that layout instead.

Add a Logo or Picture Watermark

A picture watermark works the same way. Use a PNG with a transparent background, so it does not cover the slide with a white rectangle.

1. 1
   Insert the picture on the master

   In Slide Master view, with the top thumbnail selected, choose Insert › Pictures and pick your logo.

2. 2
   Size and place it

   Make it large and centered for a protective watermark, or small in a corner for branding.

3. 3
   Make it transparent

   With the picture selected, choose Picture Format › Transparency and pick a preset, or Picture Transparency Options for an exact value. In versions without that button, Picture Format › Color › Washout lightens it instead.

4. 4
   Send it to the back

   Choose Picture Format › Send Backward › Send to Back, so it sits behind the title and text placeholders on the master. Then close Master View.

Picture transparency in the Picture Format tab is available in PowerPoint for Microsoft 365 and PowerPoint 2021, according to Microsoft. Whether a word or a logo suits your deck better is covered in logo vs text watermark.

0% transparency

90% transparency

At full strength the logo fights the chart for attention. At around 90% transparency it is still on every slide and in every screenshot, but the audience reads the data first. For more on choosing a level, see how transparent a watermark should be.

Why the Watermark Disappears on Some Slides

Master graphics are always drawn behind what is on the slide itself. That is what keeps the watermark from covering your text, and also why it vanishes in a few situations:

• A photo or filled shape covers it. A full-bleed picture or a colored box on the slide hides whatever is on the master beneath it.
• The layout hides background graphics. See the step above: clear Hide Background Graphics for that layout.
• The slide uses a different master. Decks assembled from several files often carry more than one master. Scroll down the thumbnail pane in Slide Master view and add the watermark to each one.
• The slide itself hides them. The Format Background pane has its own Hide background graphics box for individual slides. Right-click the slide, choose Format Background and make sure it is cleared.

On the master

On the slide, in front

For a photo slide, copy the watermark text box from the master, paste it onto that slide and leave it in front. A light gray with high transparency reads on both the white area and the photo. The trade-off is that it is now an ordinary object on the slide that anyone can click and delete.

The same trick is how you watermark a single slide: insert a text box on that slide only, style it, and use Shape Format › Send Backward › Send to Back if it should sit behind the content.

The Background Picture Method

There is a second built-in route that some people prefer: use the watermark as the slide background. Right-click the edge of a slide, choose Format Background, select Picture or texture fill, insert your image, drag the Transparency slider to the right, and choose Apply to All.

It works best with an image made for the full slide, such as a 16:9 PNG with your mark already placed or tiled. A small logo inserted this way is stretched to fill the whole slide. Apply to All replaces the background on every slide, including any colors your theme used, so check the deck afterwards. For most watermarks, the slide master is the simpler tool.

Lock It In: Export to PDF, Then Watermark

A watermark inside a .pptx protects against honest mistakes, not determined copying. Anyone who has the file can open View › Slide Master and delete it in seconds, then reuse your slides as their own. If you are sending a pitch, a proposal or course slides to people outside your team, send a PDF instead. Teachers selling slide decks will find the same workflow in watermarks for teachers and course creators.

1. 1
   Export the deck

   Choose File › Export › Create PDF/XPS Document, or File › Save As and pick PDF. Any slide master watermark comes along onto every page.

2. 2
   Watermark the PDF

   Upload the PDF to Watermark.ws and add your text or logo. Turn on tiling to repeat a small mark across every page, and lower the opacity until the slides still read well.

3. 3
   Save it as a template

   Reuse the same design for the next deck, or change only the client’s name for each copy you send. A name on each copy also shows whose copy it was if one leaks; see traceable watermarks for leaked documents.

Exported PDF

Tiled watermark

Unlike the master watermark, a mark added to the PDF sits on top of the photos, so no slide escapes it. A tiled pattern also leaves no clean area to crop. Tiled watermarks covers spacing and angle, and watermarking design drafts covers what to put on work you share before it is paid for.

For a walkthrough of the PDF side, see the guide to watermarking PDFs online.