reducing size of an image in gimp

[Patrick Asselman]

On 2013-01-24 23:41, Tony Arnold wrote:
> On 24/01/13 22:18, Ric Moore wrote:
>> On 01/24/2013 05:13 AM, Abhishek Dixit wrote:
>>> As per an exam requirement mentioned here
>>> http://ibpsreg.sifyitest.com/cwespljan13/photoupload_static.php
>>> I have to submit two photos who size should
>>> 1) Size of the file should be between 20kb-50kb.
>>> 2) Size of the file should be between 10kb - 20kb.
>>>
>>> I have my scanned photos which have been cropped but the image is 
>>> of
>>> 139 kb size which I have to
>>> reduce in between 20kb - 50 kb image size less than 20kb is not
>>> acceptable (I have tried the system generated an error)
>>>
>>> the programm I am using is gimp is there any other program for the 
>>> same?
>>> If this is possible in gimp then how to do so?
>>
>> You might try using 'export' on the original file and play with the
>> compression level and format to get the file size you want.
>
>
> I've just tried this. A jpeg file of 200x230 pixels at 72dpi and 85%
> quality comes out at about 27kb which is within your bounds.
>

The size of a Jpeg file also depends heavily on what is in the picture. 
If you have a picture with just one plain color it will compress very 
well, whereas a picture with many fine details will not compress as 
well.

I still fail to see what this has to do with Ubuntu though.

Best regards,
Patrick Asselman