To add your own logo to the theme you’ll have to upload the image to the web server by going to the theme settings page in Drupal. The theme settings page is located at Administer > Themes > Name of Theme. The clean URL will be admin/build/themes/settings/name-of-theme. Please replace name-of-theme with the name of the theme that you are using.

On the theme settings page you can upload your logo under the “Logo image settings” section via the “Upload logo image” form. When you have uploaded your logo be sure to check on the “Logo” option at the top of theme settings page. When you click the “Save configuration” button at the bottom of the page you should now see your logo in the theme’s logo area.

Some common problems with using your own logo:

Problem: The dimensions of your custom logo are too large for the space provided for a logo.

Solution: You can adjust the width and height of the space provided for a logo by making a few minor changes to the theme’s style sheet (style.css). With a text editor, open the style.css file that came with the theme and look for a line that contains #logo. Usually the #logo line in style.css will be near the beginning of the style.css file and possibly combined with other lines. For example: #header-middle #logo This means that the logo style settings are contained within the header-middle region of the theme. Most likely the theme you are using the logo will be located somewhere in the header section(s). Most of the styles for the header sections of the theme are located near the beginning of the style.css file. Once you have found the #logo section in style.css you can adjust the width and height to suite your logo’s dimensions. For example: your logo is 120 pixels wide and 40 pixels in height; add height: 40px; and width: 120px; to the #logo section.

Problem: Your logo is not displaying after you uploaded your image via the upload form on the theme settings page.

Solution: Make sure that the “Logo” option is checked on.

Solution: You may need to refresh the web page a few time to clear out the browser’s cache for the changes/logo to show.

Solution: You may have forgotten to click the “Save configuration” button at the bottom of the theme settings page.

Solution: Your image/logo may have exceeded the maximum allowable upload file size configured by your web server or web host. This is usually controlled by PHP settings. Please see php.ini file for configuration option on upload file sizes. To avoid the limits of a max upload file size is to resize the image. Photoshop has an option to save an image for the web which gives you great control over the file size of the image while maintaining quality of the image.