Ben Marchbanks on wrote... | I produce fullscale and thumbnail PNG images of PDF pages. | | The fullscale images are about 100kb in size while the thumbnails are 2x that | filesize - 200kb and larger !. | | Is there a way to produce thumbnails with the same small filesize ? | two things...
First use -strip or -thumbnail during conversion to remove any and all profiles from the final thumbnail Second use -compress -90 and see how well that does PNG compression See http://imagemagick.org/Usage/formats/#png_quality for details Finally use "optipng" to try to find the BEST posible compression without data loss for thumbnails. For even smaller PNG thumbnails but with lower image quality you can try saving to PNG8:image.png instead. Or use an external color quantization program like "pngnq". See http://imagemagick.org/Usage/formats/#png_non_im for pointers to these programs. Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]> ----------------------------------------------------------------------------- There are bugs and there are bugs. And then there are bugs. ----------------------------------------------------------------------------- Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
