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Problem exporting image to specific file size

412 Views 12 Replies Latest reply: Mar 27, 2013 2:03 AM by Ernie Stamper RSS
Prudencedigsdeeper Level 1 Level 1 (0 points)
Currently Being Moderated
Mar 26, 2013 10:41 AM

I've had some professional images shot and I can see from the file size in Aperture that they range from 13 - 73 mb. I need to submit them as 72dpi and 300dpi files and they must be between 1 & 3 mb in size.

 

I'm having no problems in exporting them at the correct dpi but the file sizes come out between 451kb and 1.8kb: 3 of the 6 images are too small, ie under 1mb.

 

What I'm doing is 'export version', then choosing the preset option of 'jpeg original size', editing it to the dpi I want, setting the image quality at a max of 12.

 

How can I get these file sizes to be bigger?

 

Thanks, and please help me quickly because I've a submission deadline approaching!

Aperture 3, Mac OS X (10.6.8)
  • léonie Level 8 Level 8 (46,550 points)

    Have you checked your jpeg-original size preset, if the "Size to" drop down is still set to "Original Size"? Or does it show a different size?

    Screen Shot 2013-03-26 at 18.50.26.png

    What is the pixel size of the images you want to export?

  • Frank Caggiano Level 7 Level 7 (22,830 points)

    Find it hard to believe that you are exporting images that have an original file size of 13mb + with a quality slider setting of 12 and only getting image files of the size you say you are.

     

    I just tried it on an image with an original file size of 22mb and when using the settings you say you are the exported version's file size is 6.8 mb,

     

    Either the images are one solid color or the settings you think you ate using are not what is really being used.

     

    You need to check your settings to be sure you are really using what you think you are It is easy for a preset name to say one thing while the preset settings say something else.

     

    And just to be sure you are exporting using File->Export->Version and not by dragging the image out of Aperture, correct?

     

    regards

  • Ernie Stamper Level 8 Level 8 (37,455 points)

    Please click on the arrows beside Original Size, and then choose Edit.  What then is shown?

     

    Ernie

  • Frank Caggiano Level 7 Level 7 (22,830 points)

    Well if the images have so much single color in them that they are compressing down to this size at a setting of 12 there is nothing you can do to make the file bigger,

     

    Do they have to be jpgs? Tiffs will definitely be bigger, pngs maybe.

     

    What format are the original files in? If you could post one say to dropbox or something similar I could have a look and see if they behave the same way here.

     

    regards.

  • Frank Caggiano Level 7 Level 7 (22,830 points)
    Currently Being Moderated
    Mar 26, 2013 3:40 PM (in response to Frank Caggiano)

    Just tried an experiment. Took a RAW image of a plain white sheet of paper. The RAW file was 11mb. Exported as JPG, original size, quality 12, the exported file is 8mb

     

    You never said what format the original images are in or if you are doing any cropping to the image before exporting.

     

    A more detailed explanation of your workflow is needed to resolve this.As I wrote above if you could post one of the images online it would help.

     

     

    regards

     

    Message was edited by: Frank Caggiano - The settings in the export window in your screen shot are set correctly to produce the largest JPG image from a give original.

  • Ernie Stamper Level 8 Level 8 (37,455 points)

    Since I see you have been creating some special presets for export sizing, I am suspicious that the Preset Original Size is not really that.  Every preset, including the standard ones, can be edited to anothere setting.  Please use Edit to change the size of this Original Size present to another value, say 4288 X 4288, then quit Aperture.  Re-launch Aperture, and immediately change, with Edit, the size to Original Size JPEG.  Then test another Export of a Version.

     

    Ernie

  • léonie Level 8 Level 8 (46,550 points)

    Prudence,

    you never answered that part of my question:

    What is the pixel size of the images you want to export?

    What is the resolution of your images in pixeln, not in file size?

  • Ernie Stamper Level 8 Level 8 (37,455 points)

    I am pretty sure that Leonie is asking about the pixel size of these original photo files, and not what pixel size you want to export them to be.  When you use File Size in Info, what pixel size is reported?  Why is my suggestion taking you over 100% if that is what you are saying?

     

    Ernie

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