That represents an order of magnitude reduction in file size. The six megabyte file I described above becomes 200 KB when pictures are compressed for the web, and 500 KB when compressed for printing. You should keep your original Powerpoint file, or at least the original pictures, in case you need to edit the pictures again. Use "File"→"Save as." menu item to save your presentation with a new file name, adding the words "For Review", "For Viewing", "For Printing", or something similar.If you are sending the file out for screen viewing and review only, then select the "Web/Screen" option and both checkboxes, "Compress pictures" and "Delete cropped areas of pictures". You will see the "Compress Pictures Dialog" box.Click on the "Compress Pictures" icon as shown. If you do not, check the "View"→"Toolbars"→"Picture" option from the menus. You should see the "Pictures Toolbar".Click on any picture in your presentation.Powerpoint 2002 (or XP) has a built-in feature to compress the pictures in a presentation. If you resize this to a 1 inch square in the Powerpoint slide, the resolution will be 2000 dots per inch (dpi)! By comparison, recommended print resolution is 200 dpi while screen resolution is only 96 dpi.įor typical print or screen viewing, you can remove the fine detail and cropped parts of the pictures to reduce the file size. For example, you might add a picture from a four megapixel digital camera that is 2000 by 2000 pixels in size. If the picture is at high resolution, then the fine details remain regardless of how the picture is reduced in height and width. For example, if you crop a picture, the parts that were cropped are still taking up space (so you can uncrop later if needed). When you add pictures to Powerpoint, they are stored in an unoptimized format. That six megabyte Powerpoint becomes ten megabytes when sent as an attachment. Email attachments are typically encoded in a format that makes binary files expand. For example, I have one PPT of three slides and five pictures that is over six megabytes! Such files are unwieldy, especially for sending via email. § Home > Index > Troubleshooting How to Optimize, Shrink, or Compress Powerpoint Presentations ProblemĪfter adding images to your Powerpoint presentation, your Powerpoint file (PPT) may become very large.
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