Set thumbnail size, quality, and border orientation To set the minimum thumbnail size Choose Edit > Preferences to open the Preferences window. Click the Thumbnails tab. Set the Minimum size value by dragging the slider toward Small (to make them smaller) or Large (to make them larger). Click OK. To set the thumbnail quality Choose Edit > Preferences to open the Preferences window. Click the Thumbnails tab. Set Stored resolution to Low, Medium, or High. If you set Stored resolution to Low, turn on Optimize thumbnail quality. Click OK. To set the thumbnail border orientation Choose Edit > Preferences to open the Preferences window. Click the Thumbnails tab. Do one of the following:

• To set thumbnail borders to landscape orientation, set Display format to Landscape.
• To set thumbnail borders to portrait orientation, set Display format to Portrait.
• To set thumbnail borders to square images, set Display format to Square.
• To set thumbnail borders to wide orientation, set Display format to Wide.

Click OK. Setting thumbnail size, quality, and border orientation PortfolioWall determines the size of thumbnails based on the number of assets within a project tab. The more assets there are, the smaller the size of each thumbnail. If thumbnails appear too small, you can set the minimum size for thumbnails to a larger value. You can control the quality of thumbnails. Lower quality thumbnails are loaded faster than higher quality thumbnails. If you select a low thumbnail quality, you can choose to optimize thumbnail quality to help improve thumbnail quality. Thumbnails are framed with an invisible border. You can see this border when you move a thumbnail. The default orientation of this border is landscape. You can change the thumbnail border orientation to portrait, square, or wide to best match the orientation of most of the images in a project. View thumbnails