Many logos come with tag lines and/or (R) or (TM) attachments. When positioning a logo on a page, ignore these and focus only on the main text or graphic to align the image on a slide (even better: violate the logo style rules and crop them out). For horizontal alignment of a number of logos in a row, draw a temporary line and make sure the text of all the logos sits right on it.

If you liked this post, why not subscribe to daily updates about presentation design via email? Just blog posts, no spam, or you can follow Jan on Twitter to never miss a thing.