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Check image sizes in ppt for mac
Check image sizes in ppt for mac










check image sizes in ppt for mac

So there are two aspects of a picture you need to be aware of: But PowerPoint does take DPI into account as you’ll see later. This is usually only applicable for printed media and defines how many pixels (dots) are crammed into each inch. In addition to the size of the picture in pixels, some image editors set a DPI (Dots Per Inch) parameter. This can cause pictures to appear blurry and degrade the quality of your slide show when displayed on a monitor or projector. When you resize pictures in PowerPoint beyond their original 100% size, extra pixels have to be ‘invented’ by PowerPoint through a process of interpolation. The first shows the image at a normal scale:īut when we zoom in you can clearly see each individual pixel that makes up the picture: The image below shows how pixels are used to form an image. Each of these dots is a single colour and the number of dots affects the file size of the picture. A raster or bitmap picture (contrary to a vector image) is made up of thousands of tiny dots or pixels.

check image sizes in ppt for mac

OK, so this might not be the most exciting news headline but we need to start from the beginning. So what do presentation professionals need to know about picture size and resolution? Pictures are made of dots

check image sizes in ppt for mac

But when it comes to PowerPoint, there’s an odd mix of measurements from the physical and digital worlds even though the majority of what is produced is shown on either a monitor or a projector. If you come from a web design environment you might be more familiar with pixels. See our previous blog entry for tips on image compression in PowerPoint.If you come from a print media background you’ll be familiar with the importance of image resolution and how it affects quality. It’s true that larger images can significantly increase file size, but there are ways to deal with this and still retain optimum image quality. Now, when you add a high-resolution photo, PowerPoint will not compress the image–leaving you with the sharp, great-looking image you chose.To stop PowerPoint from compressing images, select “Do not compress images in file.” Alternately, you can leave this selected and instead choose a higher target output ppi settings (the larger the number, the better the resolution and image quality).Screen (150 ppi): good for Web pages and projectorsĮ-mail (96 ppi): minimize document size for sharing Print (220 ppi): excellent quality on most printers and screens (this is PowerPoint’s default ppi setting) Under Image Size and Quality, you can tell PowerPoint (2013/2016 and Office 365) to compress all images in the file or not, and by how much. On the File menu, select Options > Advanced.In this case, the document’s author (or someone who has edited the presentation and passed it on) has likely set the file to compress images each time it’s saved. It’s also possible that a perfectly good image, at an appropriately-high resolution, was inserted in the PowerPoint file, but the next time it is opened the image looks fuzzy. Only then can we make the image look high quality-with a high-quality source image at the correct size without scaling. The image quality for a small image cannot be improved unless we have the original high resolution version to work with. The user is understandably frustrated and wonders if maybe Bluewave could work some magic on the image to fix it. The result is almost invariably blurry because there just aren’t enough pixel data in the tiny photo to look good at a larger size. What happened? Most likely the user pasted a very small photo into the PowerPoint file and scaled it as large as they could: Scaled-up tiny image We’ve received many desperate emails from clients asking, “Can you do something with the photos? Why are they so blurry and fuzzy?” How often have you opened up a PowerPoint, started the slideshow mode, only to be stopped in your tracks by a photo that’s blurry?












Check image sizes in ppt for mac