DIGITAL posters may be STANDARD (4:3) or WIDESCREEN (16:9). The standard size for PRINT academic posters is 48 inches wide by 36 inches tall. PowerPoint 2016 slides are, by default, 13.333 inches wide by 7.5 inches high. What is standard PPT size? The maximum slide size in PowerPoint is 56 inches x 56 inches.
… Here you can change the width/height or the resolution, which is normally dots per inch (DPI) or pixels per inch (PPI). If you have a file that is 4000×2500, then reducing the size to 2000×1250 will make the file half the size.
How do I reduce the resolution of a photo in Photoshop? The main way to shrink an image is to lower the picture resolution. Use the resample settings to adjust for changes to the image size or for printing. How to decrease resolution of image in photoshop? You can change the resolution of an image in Photoshop by clicking the Image menu → clicking Image Size → making adjustments to the height or width to the “Pixel Dimensions” fields.
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