Remove tooltips from PDFs exported from PowerPoint

When exporting a PDF from PowerPoint (I use PowerPoint 2010), each image that was inserted into the PowerPoint document from a file will have a tooltip showing the file name in the PDF. I didn't even know before that PDF elements can have tooltips. It is very annoying an distracting when the tooltips come up during a talk.

Question: How can I prevent the tooltips from being included in the PDF?

Note: Using alternate PDF viewers or alternate settings in Adobe Reader is not an option.

Solution 1:

I found a workaround here.

To summarize:

• The tooltips are included for accessibility.

• To turn them off, change the options in the Save as PDF... dialog and disable "Document structure tags for accessibility"

Solution 2:

That tooptip is generated from the Alt Text in Word. By default, it is the image file name/path you copied and pasted. It can be modified in Word or PowerPoint, as described here.

To remove it, you have 3 solutions:

1. In Word or PowerPoint, use File -> Print. This will remove all Alt Text.

2. In Word or PowerPoint's Acrobat ribbon, choose Preferences, then uncheck “Enable accessibility…" Sorry for not having an English version.

3. Using acrobat.In Acrobat 9, go to Advanced > PDF Optimizer. (The path may be slightly different in Acrobat 8.) Under Discard Objects, make sure that Discard Document Tags is checked. This will remove alt text from images. You can also run this in batch (on multiple PDFs at once) by going to Advanced > Document Processing > Batch Processing. Decribed here.