What Size Files for Powerpoint

Discussion in 'Digital Darkroom' started by diane_madura, Jul 13, 2009.

  1. I'm taking a class, and I'm working on a group Powerpoint project, and I'm responsible for the photographs (this is for a class unrelated to photography). After our presentation is given, the professor wants a printed copy of the whole Powerpoint presentation.
    I need to email my photographs to the person assembling the Powerpoint presentation, but each of my photographs are much too large to email. So my question is, what is the maximum size a photo can be for a Powerpoint presentation? I want the file to be large enough to print out nicely, but small enough so that I don't have trouble emailing them.
    I've found information on what size to use for Powerpoint, but I don't see any comments from anyone that says what to use when you are going to print the slides. Any feedback is appreciated.
  2. Diane, you can supply virtually any size image for placement into a PowerPoint slide.
    But, I have found that a 1500 x 1125 pixel (width to height) and a resolution of 150 ppi works well for my PowerPoint projects.
    (That 1500 x 1125 is proportionate to the 10 x 7.5 inch slide format in PowerPoint.)
  3. Thanks for your answer, BW. Do you know if that will print out OK? I'm not at home to check out how it will print.
  4. Ditto.
    150 ppi will get you better-than-newspaper-quality prints, and 95 ppi is the native Windows display resolution, so there's no need to go bigger. (Well, if the pictures will be significantly cropped there is, but you'd be better off letting the person know to ask for a cropped version if the need arises.)
    Save the pictures as medium-quality JPEGs and you should have no trouble emailing them. Worst case, you'll certainly be able to email them one at a time. In the real world, you should be able to send dozens in one email.
    If you really, really care about print quality, then offer to make the printed version yourself, or to make a separate add-on with high-quality prints.
  5. Ben, I do care about the print quality, that's why I posted my original question. I'm not creating the Powerpoint myself, and there isn't time for me to learn Powerpoint before it's due. After all, it's a group project and everyone is working on what they know how to do.
    Medium quality JPEGs mean nothing to me. Can someone tell me what size they should be (i.e., number of pixels and resolution) for them to print out nicely?
  6. Diane, using the 150 ppi will work for your application. You can get a nice, clean print, and email the images easily, size-wise.
    That width to height ratio (1500 x 1125) is really to fill the PowerPoint slide completely. If you want your layout person to simply take an image and place it within the slide itself, then your adherence to the proportion ratio is a moot point.
    Save the photos as a JPEG, 150ppi, high to maximum quality and you will have no problem.
    If you need some assistance on the process, please feel free to email me. Good luck.
  7. Diane, because Powerpoint works its own little 'magic' on images that are placed into the file, you won't gain much by going with a lot higher resolution than 200 dpi (other than bloated file size). Whatever compression the program is using is akin to jpg compression, so there is some loss of quality, but not too bad.
    In a print-out it is most noticeable if there are different resolution images (something I've had to deal with before) in the file. So if you get everything the same, you should be okay. Are you doing color printing or b&w printing? If b&w, you may need to redo the color scheme to account for that (printing as b&w just dumps all the greyscale info unfortunately).
  8. Thomas, I'm printing in color. I just want the prints of the slide show to look like a relatively good photograph. I want our project to stand out from the others. :)
  9. Diane,

    For a bazillion reasons, you can't count on and shouldn't expect the quality of the printing to be
    something that will make you stand out. What you *can* do is make the quality of the photo stand
    out, even if it's a lousy print job.

    For that kind of thing, I'd suggest viewing your photos on screen at roughly passport photo size --
    pretty small. Use that view when deciding which photos to use and which not to use; if it stands out
    at that size, it'll have plenty of ``wow'' at ``normal'' sizes. Also, do your post-processing with an eye
    to how it'll look small; you may want to (judiciously) amp up the contrast and saturation, for


  10. Ben, the photos are already the best I can do. The subject is pretty dry...not much room for creative flair. I just want to print at the best quality possible. I don't want the presentation slides to look like newsprint when they're printed, which some of the examples from this professor's previous students looked like.
    Thanks to everyone for their responses...I know what to do now.

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