Convert 300 dpi image to 72 dpi but maintain original WxH

[jburkhart68]

With the following comand I am trying to flatten a 300 dpi psd file and set resolution to 72 dpi.

-flatten -units pixelsperinch -density 72 filename.tif

I seem to be missing somethng but not sure what it is. I get a tif file ok but the size is still 300 dpi.

Thanks,
Jeff

[anthony]

Photoshop stores its 'density' in a different place to the normal position for TIFF file formats. Try stripping the TIFF of extra profiles. (using -strip)

See the note for TIFF file format
http://www.imagemagick.org/Usage/formats/#tiff

[jburkhart68]

Using -strip gives me the correct resolution. Now I need to constrain the proportions so that the demensions do no change. Trying to create a fpo for highrez replacement.

Thanks for the help,
Jeff

[jburkhart68]

-strip is not going to work for me either. It removes the clipping path that I need to have included with the output file. arrg

[anthony]

Using -strip gives me the correct resolution. Now I need to constrain the proportions so that the demensions do no change. Trying to create a fpo for highrez replacement.

Good the command you want to resize the image to the correct density at the same REAL WORLD dimensions, is -resample
See http://www.imagemagick.org/Usage/resize/#resample