The Output workspace/module for generating PDF contact sheets/presentations and Web Galleries did not ship Bridge. You can manually download and install the Adobe Output Module and workspace for Bridge following the directions in the following document:
You can also create contact sheets by selecting Tools > Photoshop > Contact Sheet II from Bridge, or File > Automate > Contact Sheet II from Photoshop.
You can create PDF Presentations by selecting File > Automate > PDF Presentation from Photoshop.
If you have a Creative Cloud All Apps plan, you can use Lightroom 5 to generate contact sheets and web galleries:
- Lightroom Help / Print module layouts and templates: http://helpx.adobe.com/lightroom/help/print-module-layouts-templates.html
- Lightroom Help / Creating web galleries: Basic workflow: http://helpx.adobe.com/lightroom/help/creating-web-galleries-basic-workflow.html