How do I minimise the file size of a photo?

I am trying to find a way to miimize the file size of a photo so I can use s a avicon. Does anyone know how to do this?

Select the pic in the iPhoto Window and go File -> Export
Two settings will impact on the File Size:
Jpeg Quality refers to the amount of compression applied to the file. Size refers to the dimensions (length by breadth) if the image.
Regards
TD

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What methods are there for making as small as possible the file size of a greyscale image. I need to keep the resolution at 200pixels per inch. The image is going to be big, 5835mm wide and 1780mm tall ! Some of them have some fine soft detail so I need to keep an eye on how that degrades. Others are better.
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My need is to enlarge up a plan for placement in, then tracing over in a CAD program, retaining the fine detail prior to tracing. I have some at 1/10th the full size item at 200ppi, others still as digital slr raw files. I have found that less than 200ppi the detail starts to go. considering this, if I am now working full size item surely I would need 200ppi also ? I could try simply enlarging it up 'as is' but would imagine when I am zoomed in that the ability to work closer in would be lost as I would be seeing great big pixels. Certainly taking an image currently raw and making it 200ppi and 5800 wide would give me better detail retention.
I had hoped for some suggestions on how to save at lesser colour or grey numbers than 256. Some scanning of large plans can for storage purposes use 17 colours for example. Do I need 256 shades of grey, can I save as 64 shades perhaps ? Certainly LZW is the right direction here, retaining detail but using compression. JPG compression starts to frogspawn the edges below quality 6, so losing detail again. What about png or gif, thats what I had hoped for. Does anyone know how to reduce colour palette numbers to 64 or 32 shades ?
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How do I increase the file size of a photo?

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Export with higher quality (file menu ==> export - see the use tip on exportign for details on options)
However this will not change anything about the photo except the amound of disk sopace it uses - the photo is stil exactly the same no matter how large you make the file by reducing compression
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How do I reduce the file size of a photo

I need to reduce the size of a photo from 1.7MB to 50 KB how do I do this.

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I'm having the same problem, but the file will not reduce below 60KB.
I'm trying to upload these on to a web site and they won't take anything bigger than 50. I've tried getting them down to 1x2 but even then, they won't reduce below 60. They're just mug shots, so can't be that memory hungry? Any help greatly appreciated!
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Select the album, Select all photos in the album, then click on the info button. Number of photos and total size are on top of info pane.

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If the limited quality options do not get you the file size you need export the full size image files to a folder on your Desktop and use Resize! to batch resize the image dimensions and file size (jpeg compression level) to what you need.
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How do i reduce the file size on a pdf document?

How do i reduce the file size on a pdf document?

The only way to reduce the size is by editing the original document to reduce its size and then converting again to PDF.

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How do i determine the file size of a down load before i download it?

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How do I redice the file size?

Hi:
I'm using Pages 1.0.2 for the first time. I created a nice 2-page file with the intention of emailing such a file on a monthly basis.
Unfortunately, the finished file is HUGE (15MB), making it impossible to email.
I tried Export > HTML format. Surprisingly, when I open the new Safari HTML page, alignment hasn't been preserved. Images are all over the place.
Is Pages an applicable app with which I can email its finished files?
If so, how can I shrink the file size substantially?
If not, what optional apps are as stunning as Pages but aren't humungous?
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Warren,
Pages isn't the application you want to use to create HTML, despite its marketing by Apple. You've already bumped into its limitation -- it often scrambles formatting.
But you can easily save your document as a PDF file, and reduce its size at the same time. Click on File > Print, then in the Copies & Pages menu, select Colorsync. In the Quartz Filter menu, select Reduce File Size.
Another thing to consider before you've even gotten this far: since you're emailing this file, it's not necessary to have high-resolution images. Oftentimes, that, more than anything else, will bloat a file. So you might want to use an image-editing app to decrease the resolution of your images.
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wongrayd wrote:
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wongrayd wrote:
You have mentioned about Handbrake as a converter. What is the RF no. (under Constant Quality) meant? It seems that the smaller the no. is, the better quality will be. What is the optimal no.? or should we use the Average Bitrate? Again, what is the best rate? Furthermore, which format is more suitable or the best: H264 or mpeg 2/4?
I don't know what RF means. When I have used HandBrake, I've used presets that apply to what I want to do, so I don't know the meaning of each individual setting. However, it appears that many of them are listed in the HandBrake User's Guide that is linked from the Help menu in the program:
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For iMac, except iMovie, what other software is the best for the amateur? I have read Photoshop. Can this support m2ts files and user friendly?
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1. That's only getting the file size of the Preview.
2. Click on a photo to select it. Then click on the info button. You can get the dimensions and the file size in the top of the pane
Note that the final size of any image will depend on the export settings you choose.

Hello. How do I keep the actual size of a photo when adding to a Keepsake? Used to do this but have forgotten how!

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Here is my suggestion:
Open a blank, new file (File>new>blank file) size 8.5x11"
Open the collage
Go to Select>all
Go to Edit>copy
Go back to the blank file created in step #1
Go to Edit>paste. The collage will be on its own layer
Access the move tool, and with the corner handles resize the collage. Using the corner handles should preserve the aspect ratio. If you open the rulers, you will have a point of reference as you go along.
Print a draft copy to see if it will be suitable in the frame..
Please report back with your progress.

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Aperture
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I think that the point that David was trying to make is that reducing the amount of information originally provided by a product or part of it in order to make it smaller will inevitably reduce the efficiency of the product itself.
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How do I minimise the file size of a photo?

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