The secret to quickly updating an image or a logo, is by creating it as a master component, and use reference copies of it in your artboards. Here's how to do this on a Mac (PC users can swap Command for Control, and Control-Click for Right-Click):
- Drag and drop the logo artwork onto the project canvas or artboard.
- Select the logo asset and press Command-K to Make Component. (Or go to the top menu, and select Object > Make Component)
- The newly created component will appear in the left-hand Assets toolbar, under "Components."
- Select the logo component and drag copies of it into the desired artboards.
- If you decide to update the logo artwork, you can control-click on the component asset in the left-hand toolbar, and select "Edit Master Component." It should appear in the canvas, outlined in green and selected.
- From there, you can drag and drop a new version of the logo into the selected component area, and it will automatically replace all of the instances of the logo. If you have the logo copied into the Pasteboard, you can control-click on the master component, and select "Paste Appearance" from the contextual menu.
On a related note, "Paste Appearance" will be your best friend when you wish to replace individual photos or artwork that have been duplicated with the "Repeat Grid" feature. Command-V will replace all of the repeat-grid images, which may not be the desired result, if you just want to update a single image within the grid.
I hope that this helps!
Take care,
Mark