SilkeV
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Q: Images imported to Keynote get automatically downsampled, although downsampling/resizing is unchecked

Hi!

 

We encountered a problem on Keynote 6, we don't have, using Keynote 0.9. Sometimes we need to import really large Images into our slides, to demonstrate webdesign to our client. We have to handle some really big images.

 

We are not using the downsampling (fitting size of pics to slide) feature built in Keynote, because, showing designs, we need crisp pngs with neat quality.

 

We tried to import one picture with 4400 px height. Keynote kept downsampling the image, no matter how we tried to import, paste or drop it. Cutting our PNG to about 3000 px height helped, but we really need to import it in its original size 4400 px.

 

Having a look at the filename in the format panel, we discoverd keynote adds a "-small" to the filename, leaving us with images with the name "image-small.png". Replacing it with the bigger picture inside the Keynote zip didn't help either. We definitely unchecked the downsampling checkbox in the properties, but the filename indicates, he downsampled it anyhow.

downsampling_sample.jpg

 

Now we are really frustrated with the Keynote 6 version. It kept bugging us with other little pixel errors, like not allowing us to position pictures on one precise pixel numeric value. But having blurry pictures in a design-based presentation forced us to go back to Keynote 0.9, which handles our large image just fine.

 

Anybody encountered some similar issues?

 

We're quite clueless now.

 

thx, Silke.

MacBook Pro, OS X Mavericks (10.9.1)

Posted on Feb 14, 2014 4:48 PM

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SilkeV

Q: Images imported to Keynote get automatically downsampled, although downsampling/resizing is unchecked

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  • by SilkeV,

    SilkeV SilkeV Feb 15, 2014 3:10 AM in response to SilkeV
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    Feb 15, 2014 3:10 AM in response to SilkeV

    Supplement: we noticed, that the threshold seems to be the magic height of
    4096 px, which would be 2^12. Having a height of 4097, the image gets downsampled. Using a height of 4096 and lower, the image keeps its quality.

     

    This sounds to us like an intended limit. Anybody who can confirm that?

     

    Greetz, Silke.

  • by sgravity,

    sgravity sgravity Mar 10, 2014 5:03 PM in response to SilkeV
    Level 1 (0 points)
    Mar 10, 2014 5:03 PM in response to SilkeV

    Your post saved my presentation!

     

    We had designed a website that uses a long scrolling page and we like keynote to help animate and bring it to life. With the upgrade to 6.1 the images in our presentation were looking really bad and downsampled.

     

    Using your info, we saved out our JPGs at no greater than 4000px and then grouped them in keynote to make a long scrolling page. It worked, but defeats the purpose of drag and drop presentation creation that used to be the hallmark of keynote. It's a total workaround solution for a problem that wasn't in any other version of keynote that I've ever used.

  • by Rainer Pleyer,

    Rainer Pleyer Rainer Pleyer Apr 23, 2014 6:45 AM in response to sgravity
    Level 1 (0 points)
    Apr 23, 2014 6:45 AM in response to sgravity

    I can confirm this behavior, and the workaround (images up to 4096 px in size are not downsampled). We strongly hope that this will be addressed in an update as soon as possible. My biggest concern is that this is due to some limitation in iOS, which probably would make a solution much harder. It is, however, a major PITA.

  • by Krischan,

    Krischan Krischan Dec 29, 2014 6:16 AM in response to SilkeV
    Level 1 (4 points)
    Safari
    Dec 29, 2014 6:16 AM in response to SilkeV

    +1

    Please Apple, fix this bug.

     

    I understand that there are technical complexities when codebases for OS X and iOS are unified: Making a product on OS X worse in the short term is something that I can accept. But after nearly a year, such bugs should definitely be fixed.

  • by th1,

    th1 th1 Jan 8, 2015 7:30 PM in response to Krischan
    Level 1 (0 points)
    Jan 8, 2015 7:30 PM in response to Krischan

    +1

     

    Please fix this bug. It is really a major problem.

  • by joshuasp,

    joshuasp joshuasp Jan 16, 2015 10:06 AM in response to SilkeV
    Level 1 (0 points)
    Jan 16, 2015 10:06 AM in response to SilkeV

    I found a solution that prevents Keynote from destructively downsampling your images. Using the example of a long website comp, just save the comp as a flattened PDF directly from Photoshop. The PDF keeps all its own metadata concerning resolution and size when dropped into Keynote. I am including an example screenshot below. Notice the button. On the left is a PNG and a PDF of the same comp on the right. I should also mention that I have not found a height limitation to this solution so it shouldn't affect those long website comps you want to animate during a presentation.

     

    Example

    Screenshot 2015-01-16 12.59.53.png

  • by WrYBiT,

    WrYBiT WrYBiT Sep 22, 2015 2:18 PM in response to SilkeV
    Level 1 (0 points)
    Sep 22, 2015 2:18 PM in response to SilkeV

    Same her.

     

    @Apple: Fix this. If I wan't downsamping, I know how to turn it on.

    Or at least ask the user if he really want to do have a low-res pic.

     

    Thanks for the 4000 hint!

     

    Greez Jens

  • by matthias204,

    matthias204 matthias204 Oct 10, 2015 12:04 PM in response to SilkeV
    Level 1 (12 points)
    Apple Watch
    Oct 10, 2015 12:04 PM in response to SilkeV

  • by MathPickle.com,

    MathPickle.com MathPickle.com Nov 15, 2015 10:18 AM in response to SilkeV
    Level 1 (0 points)
    Nov 15, 2015 10:18 AM in response to SilkeV

    I'm having trouble with this too in November 2015. It has been over a year with this issue. I'm sure it has been addressed within keynote, but I just cannot find it.