Click on the Change button next to Privacy if there are any images you want to mark as private. Enter the tags, title and description for each image by selecting it from the list on the left and entering the information on the fields that appear on the right. The images for the slides will appear as thumbnails on the left.Launch the program and click on the Add (+) button to select the images you want to upload.The easiest way to do this is by using the batch uploader for Mac OS. Once you have your slides as images, you have to upload these images to Flickr. Select a save location and click on Export.If you choose JPEG as the format, use the slider to choose the quality (the higher the quality the bigger your image files will be). Select an image format (such as JPEG or GIF) using the pulldown menu. You can choose to save all slides or only selected slides. Select the Images tab, then set your options.To save your slides as images in Keynote: Each slide will be an individual image file. Save your slides to a folder on your computer.Select JPG or GIF from the Format pulldown menu.To save your slides as images in Powerpoint:

Flickr is an online photo hosting program that can also be used to host presentations online if you export your Powerpoint or Keynote slides as images.

Uploading photos to flickr