File Size Observations: Image Directly on Slide And if you would have 100 slides with the same background image, it optimizes the file size by counting in the image only one time. So in other words PowerPoint is intelligent enough to see duplicates of the same background image. Interesting to know that when you duplicate the slide or even use a new slide and set that same image again as slide background, it will not increase the presentation’s file size. So in other words the image, when used as a slide background, is not altered nor compressed in PowerPoint. You can conclude that the presentation’s size is 0.03 MB and the image is kept 1 on 1 in the presentation. To be exact: the image is 4.08 MB and when the presentation measures 4.11 MB. When you would use that compressed image of 4.2 MB as a slide background image (Format Background, Picture or texture Fill), and then save the presentation, you would see that the presentation’s file size is 4.2 MB. That is compression.įile Size Observations: Image as Slide Background So, instead of writing black pixel, black pixel, black pixel, … 1000 times, the compressed format will write: 1000 x black pixel.
In stead of storing 1000 times the black color information, pixel by pixel, the compressed equivalent will store a repetition of 1000 times a black pixel. a black wall, then each pixel of that wall, has the same color. There is obviously repetitive information in a RAW image. My photo has a resolution of 5835 by 3890 pixels, so in total almost 24 millions pixels. By compressing the image, we are taking out that massive amount of information by using compression techniques. We can use this JPG image directly in PowerPoint here. Almost 7 times smaller than the original RAW photo. The compressed JPG equivalent of this same image still contains a dimension of 5835 by 3890 pixels, but the file size is 4.2 MB now. You need to convert the image to, for example, a compressed JPG image. But you cannot use RAW images in a PowerPoint directly. Each pixel of the RAW photo, contains the most information possible. Because the image is not compressed, it contains the maximum amount of information. A given RAW photo, taken by a SLR camera, might have a dimension of 5835 by 3890 pixels, and its file size is 27 MB.
Let’s share some expert knowledge on PowerPoint and images. For them, showing high-resolution quality images in PowerPoint are crucial! But, when you put your images into PowerPoint, do your images remain high resolution? Or does PowerPoint compress images? More Details on Images, Formats and Sizes Typically for those type of presentations, you need to create astonishing presentations with great visuals. Some people use PowerPoint for advertisements and information screens.
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