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  1. jollyjack

    jollyjack POTY Winner 2011

    Messages:
    2,156
    Name:
    Jon
    Edit My Images:
    Yes
    I want to enter a image to a magazine and they say to attach image to 1.5mb jpeg, How do i resize the image to file size not pixel size?

    In PS4 is memory size the actual file size?
     
  2. martint

    martint

    Messages:
    324
    Name:
    Martin
    Edit My Images:
    Yes
    This may help:

    Go to the save for web and device option in the file menu, when the dialog box pops up there is an additional drop down menu in the top right hand side, the option in there "optimise" to file size is what you will need, after clicking on this it will then offer an option to type in the size of the file, I guess it goes without saying that it would be a good idea to get close the file size needed as it will reduce the quality with the reduction in the file size on the disc.
     
  3. jollyjack

    jollyjack POTY Winner 2011

    Messages:
    2,156
    Name:
    Jon
    Edit My Images:
    Yes
  4. admirable

    admirable

    Messages:
    11,387
    Name:
    Jim
    Edit My Images:
    Yes
    edit
     
  5. StewartR

    StewartR Efrem Zimbalist Jr Advertiser

    Messages:
    9,600
    Name:
    Stewart (duh)
    Edit My Images:
    Yes
    No it isn't, for two reasons.

    1. 1500 x 1000 is 1.5 MP, which only equals 1.5 MB if you have exactly 1 byte (ie 8 bits) per pixel. An uncompressed image usually has 3 bytes (24 bits) per pixel.

    2. JPEGs are compressed. (Or at least they are usually, but don't have to be.) You can have a 900 x 600 image which is a 1.5 MB JPEG (only very slightly compressed), or you could have a 9000 x 6000 image which is a 1.5 MB (much more compressed).
     
  6. admirable

    admirable

    Messages:
    11,387
    Name:
    Jim
    Edit My Images:
    Yes
    I know I know I know, I read Mp instead of Mb and edited my post but you must have started to write after I had corrected my post.

    To early for me. :D
     
  7. boyfalldown

    boyfalldown

    Messages:
    14,849
    Name:
    Hugh
    Edit My Images:
    No
    if your using lightroom there are options in the export dialog boxes to do this
     
  8. st599

    st599

    Messages:
    1,355
    Edit My Images:
    No
    JPEG file sizes in MB (not mb or Mb) are dependent on how detailed the image is. For a given quality at a given image size, it depends on the amount of detail in the image.

    It may be better to make the image smaller using a really good algorithm and then compressing - you'd have a smaller, slightly softer image versus a larger image with a lot of coding artefacts.
     
  9. Pookeyhead

    Pookeyhead

    Messages:
    12,037
    Name:
    David
    Edit My Images:
    No
    Quick, fast, dirty, but essentially sound method....

    File, save as.....

    [​IMG]

    Tick the preview box. Read file size.

    If you find yourself needing to go below 8 to achieve your target file size, you need to reduce the pixel resolution. Shave 10% of size.. try again.
     

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