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View Full Version : Large Images - Controlling size but keeping quality


cocoonfx
07-18-2007, 02:57 PM
Hello


I am building a site for a photographer (actually my girlfriend :grin: ) and she wants an image she has taken as the main part of the page, which is no problem to do, but i am concerned that as the image is very high quality and i want to keep the resolution but i want to reduce the file size so if anyone has a slow internet connection it does not take forever to load.

Is there any code i can use to do this? The link is below (its still under construction.)

http://www.lizgregsonphotography.com

davidj
07-18-2007, 03:03 PM
you can reduce the image size without impacting on the visual quality by using a jpg compression

just do this in photoshop or fireworks.

how big is the image?

cocoonfx
07-18-2007, 04:40 PM
Hi DJ


The current image is 1MB and its 740px x 504.

The origin is about 6MB 7400 x 5040 (i think it may be bigger).

I want to get the size down to about 500K or less but keeping the same sixe 740 x 504 and keeping the resolution.

So fireworks, should be able to do this? I think i remember how.

davidj
07-18-2007, 04:44 PM
you can keep the size (dimensional) and maybe get it down to 500k but reducing a quality 1MB image by half is going to impact somewhere. You might not notice it but that change will have to come from somewhere.

You dont need such a high quality image online unless your printing it.

domedia
07-18-2007, 05:05 PM
Monitors only display 72 dpi, so there no advantage to keeping the image at 300dpi or something else.

I've worked on a professional photographers website before, and we were able to have sufficient quality saving from PS to jpg at a compression of 75.

m1a2x3x7
07-21-2007, 04:53 AM
in photoshop you can do a save for web and adjust the quality so the size will come down but you should still be able to keep the quality as domedia said 72 res is all a monitor will display so you should be fine

d a v e
07-21-2007, 07:02 AM
dpi (or rather ppi) doesn't apply to screen, only print. one pixel = 1 pixel on screen, so saving a jpeg for web at 300ppi is the same as saving at 72ppi -both for filesize and for quality.