On Wed, May 27, 2009 at 02:10:00PM -0500, Richard Laager wrote:

Hello Richard,

> From the man page:
>         NAME
>                jpegtran - lossless transformation of JPEG files
>         ...
>                ... But by the same token, jpegtran cannot perform lossy 
> operations
>                such as changing the image quality.

Only when applied to JPEG files, not EXIF files with are not valid JPEG
files according to the JFIF standard. (It is not possible for a file to
be both EXIF and JFIF compliant). If you want to manipulate EXIF files,
use exif software.

> I realize that the man page is clear about the default value of -copy,
> but who reads an entire man page to find the one option that makes the
> description under NAME untrue?

I will let you answer this one.

Cheers,
-- 
Bill. <ballo...@debian.org>

Imagine a large red swirl here. 



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