When uploading an album to picasaweb and making it scale the pictures down to 1600x1200, the uploaded album is *much* bigger than the one uploaded by the picasa windows client for the same size.

As an example, a picture whose original size is 2048x1536, file size 921544 bytes is uploaded to a 1600x1200 of about 450kB. The same image is just 130304 bytes when uploaded with the picasa client. When checking the files uploaded, the difference is that the f-spot one has 300dpi while the picasa one has 72dpi.

Shrinking the image with 'mogrify --resize' yields almost the same results as f-spot, while scaling it down with the Gimp generates almost the same thing as the picasa client.