Flex Input is the easiest way to get your content from where it is to where you need it to be. The Google Workspace extension offers the easiest way to add a barcode to a Google Slides presentation. Here's how:

1. Install the Flex Input Google Workspace extension from the Google Workspace Add-on Marketplace.

2. Open a Google Slides presentation, and select the Insert Barcode menu option from the Extensions menu.

3. Enter the contents you want to encode (1), and select the specific barcode format you'd like to use (2).

4. Place the cursor where you want the image to be inserted, and click the Save button to insert the barcode.

The barcode will be saved into the document.

The barcode will be an embedded Google Docs image: you can use it like any other image.

Thanks for using Flex Input!