Hold your device in portrait position (in lieu of landscape) and then tap the Share icon at the lower left. Next, tap or drag your finger across thumbnails to select some photos or tap Select All at upper left. Tap an album to open it and then tap Select at upper right. Once the show starts, you can customize it using the Options menu (bottom). On an iPad, a Slideshow button appears at upper right whenever you open an album (top). The Options button at lower right summons a pane that lets you control theme, music, whether the show repeats (loops), and how long each slide stays onscreen. The AirPlay icon at upper lets you pick the device the show plays on: the iOS device or, if you’re on a wireless network, an Apple TV-connected monitor. Tap the word Slideshow at upper right and the show starts playing. Your next move depends on which device you have. To do it, fire up Photos on your iOS device, tap Albums at the bottom of the screen, and then tap an album to open it. You can play instant slideshows in Photos for iOS, too, which is handy when you’re out and about and you want to show off pictures hands-free. (If you did have a thumbnail selected, only that image gets included in the show.) Photos automatically includes all the images inside the current album in your show. When viewing the contents of an album, make sure you don’t have any thumbnails selected by clicking an empty area between two thumbnails, and then click the play button in Photos’ toolbar. You can play an instant slideshow of a single album (top) or several (bottom). You can also select an album (or several) and then click the play button in the Photos toolbar at the top of the window. The albums play in the order in which they appear in Albums view. To play an instant slideshow of multiple albums, select them by Command-clicking each one, and then Control-click one of the selected albums and then choose Play Slideshow. In Albums view, Control-click (or right-click on your mouse) any album (even those created by Photos) and choose Play Slideshow from the menu that appears. The Music panel gives you access to your iTunes library for use as background music. Otherwise, site-based tools work too.The Theme panel previews what each theme will look like applied to the first few pictures. At the same time, if you’re using raster editing programs like Adobe Photoshop, you can easily reduce the dimensions of your images before saving. Using sites like, you can quickly resize images to fit your slide canvas. For example, if your image is 3000px x 2000px, cropping it down to size will save you a lot of space. c) The very next step is to start cropping the images to fit within the slide dimensions. If you’re using any of the typical slide dimensions like Standard (4:3) or Widescreen (16:9), typically the safe dimension is 1024px x 768px and 1280px 720px respectively. You can do this by accessing the ‘slide size’ in the ‘design’ tab.ī) Enter ‘Page Setup’ when navigating into ‘Slide Size’ to identify the dimensions of each slide. a) The first step is to determine the max dimensions of your slide. It involves ‘pre-cropping’ the images you plan to insert into your presentation even before you try any of the methods before this. This step is most commonly overlooked by most executives simply because it’s pretty tedious. Image Compression Method 2: Optimize the dimensions of your presentation images before inserting into PowerPoint Tools like Tinyjpeg, Tinypng and Smallpdf are great to reduce the size of your files without installing any additional applications on your machine. Image Compression Method 1: Reduce the size of images losslessly using browser applications