Look at the EXIF files in a hex editor, then write a python script to
modify those bytes.

Cheers,
Carl.

On 18/05/07, Andrew Errington <[EMAIL PROTECTED]> wrote:
Hello,

What is the best tool for editing the dpi information in a JPG image?  I
have resized the original with ImageMagick, and the EXIF dpi is 72 in X and
72 in y.  I want to edit these values to be 300 dpi in both axes.
ImageMagick will print out the EXIF values, and I have found some utilities
to edit the EXIF fields, but they only seem to allow editing of the
'coventional' fields like date and time, title, copyright string etc.

Thanks in advance,

Andrew

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