What can I say, he likes things in “nice neat rows.” So, he took some damn Windows template of “standard” landscape ratio and placed each of my images into these rectangles so they formed some nice neat rows and columns. He didn’t seem to mind in any way, shape, or form that EVERY image was distorted. I told him I’d be glad to redo the entire page with all of the images so that he didn’t have to do it but he refused. I offered to do a web gallery but he refused that as well. Our final compromise was to remove all of my images from the web site.
What a pathetic pity.
As far as size, the (storage) size of any given image can vary depending upon the number of contrast regions in the image and the degree of sharpening on the image. That is, an image of a flat wall will be significantly smaller than an image of grass. Sharpen (unsharp mask) the grassy image and the image will be yet larger in storage size. [Note: I’m making a distinction between the Storage size of an image versus the Dimension size of an image. Unfortunately in English we use the term “size” for both so I try to make a full distinction between the two.]
Now, let’s say you have an image who’s dimension size is 3504 x 2336 pixels and you resize it to 2000 x 1333 pixels, and let’s say you’ve save it with 50% compression to make it about 200 KB in storage size. If you went back to the original 3504 x 2336 image and did the resizing again to 1000 x 667, did the same level of JPEG compression, your image would now be about 50 KB. In other words, halving the size of an image reduces the size of the image to one forth.
[The reason why I had to go back to the original size is because when you JPEG a JPEG, the numbers will probably turn out different due to the lossy nature of JPEGs. It gets messy.]
When I’m saving images for Keynote, I ususally use PNG-24 for images and PNG-8 for flat (non-photographic) graphics because there are no JPEG degredation with PNGs. The sizes are often quite a bit larger, but to my eye, worth it. It’s either PNGs or TIFFs but they are a lot larger. (On the other hand, some of the projectors I’ve had to use made that level of concern irrelevant. Alas, I am not in a position to purchase my own projector.) Since the width of any keynote slide will be smaller than 1024 pixels wide, I usually save my images no larger than necessary for the space on the slide. If the image will cover half the slide, than my image will be no wider than around 500 pixels wide. If the image is going to be about 1/4 the width, than I’ll save it no more than around 250 pixels wide. You will not get any better appearance by placing full sized images into Keynote and will probably bog down the computer when it try to process the full sized image. You will probably get a better looking image by processing the image to the size you need yourself because you will be able to fine-tune that image as you need/want.
Once I’ve resized an image I will examine the image to see if I need to do any lightening (downsampling an image often makes it a tad darker), and then I’ll do any sharpening on the image as needed. Than I do a Save for Web, save as a PNG, and then I’m good. (Always the LAST thing when processing the image is to sharpen.)
BTW, doing a Save as... In Photoshop will give you a larger storage size image than if you do a Save for web. This is because the Save as... leaves a lot of metadata “stuff” contained in the images package that is not placed there for Save for web... Since I do not need the metadata for a keynote presentation, I do not save it that way.
Simply put, the more you process the image before Keynote gets it, the less Keynote will have to process the image--and all of the other things you are having Keynote do.
Best,
Gary Coyne
On 2/2/09 10:56 AM, "Juan M" <juanm@mac.com> wrote:
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The question here is how did you re-size the images?
If the original file size of the image was about 1 - 2 Mb, what is it now?
Also what were the pixel dimensions before and after and the resolution of the image before and after.
Juan
p.s. (on another unrelated note - my biggest pet peeve these days is the resizing of images to fit the space available. I see newspapers, magazines, advertisements and professional and amateur photographers, graphic artists, etc. take an image that is say 1280 x 800 (horizontal format) and resize it to 480 x 6400 (vertical) by squashing it or stretching it into the given space (somethng that isn't the same proportions) - the resulting photo has tall thin persons or short fat faced/bodied persons. I see this everywhere and to me it is obvious but to others, to my amazement, it doesn't at all and they can't see it.)
On Jan 30, 2009, at 5:13 PM, davidr_222 wrote:
I tried substituting smaller versions of the files but the
presentation still pauses when I try to bring up the text build that's
just before the graphics (what are in fact in a smart build). I can
hear the disc working to read the files. When it's done, the text
build comes up followed by the smart build with the graphics which
then runs with no pauses. The smart build has 36 images so I tried to
divid it into 3 smaller builds with 11 images each but that seemed to
make things worse. The only solution I've hit on is to bring up the
slide prior to the actual presentation and give it a chance to load
the graphics. Then when I start the presentation from the start with
the audience present, the slide in question runs with no pausing.
Thanks for all of your suggestions by the way.
David
Keynote is only part of iWork. To learn/ask more about Pages or Numbers check out the iWork yahoo group at http://groups.yahoo.com/group/iwork/"
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