On 17 February 2012 09:55, Steve Kinney <ad...@pilobilus.net> wrote: > PNG is a lossless format, so unless you are saving a lot of giant > images and run short of time, there is no reason to dial back the > compression from the default "9". > > On 02/16/2012 03:18 PM, Daniel Smith wrote: > > > I am looking to create some web pages with drupal. > > Can anyone tell me their process they use to do > > a similar goal? (With drupal or WP, etc.) What I'm thinking > > is that certain of the settings are compatible or not with > > the blogging engine or not? do you use png or jpeg?, etc. > > I usually use jpg format for nearly all web images, because > comparable images saved in png normally have larger file sizes. The > most potentially interesting feature of png is that it saves > transparency, and *nearly* all web browsers now in use understand > how to display png images with transparent areas. If you need a > transparent background, and you need higher resolution or better > scalability than the gif format provides, png might be your answer. > Others may know uses for png that I am not aware of, but so far I > have found no use for it in web design. > > In re transparency, most of the time you will not need it. If you > load the page under construction in a web browser and use the > eyedropperin the GIMP foreground/background color tool, you can set > the exact value to make an opaque part of your image match the page > background exactly. >
As a point of difference :) I find myself tending to save the majority of my images (in terms of developing the site - stripes, decorations, non-content stuff) as PNGs. Firstly, I make most of my images from scratch using minimal numbers of colours to minimise load time anyway so the PNG is almost invariably a lighter weight option. For larger pieces such as banners, photos, avatars, artwork, anything with lots of different colours, I would probably use JPG. On the transparency front, I find PNG a huge benefit over GIF. The obvious example is for logos/decorative images - GIFs do not have alpha transparency, a major issue for any shape other than a rectangle. Another benefit to using PNGs in websites is being able to make interesting and lightweight blocks of colour combinations using repeat-xy backgrounds of semi-transparent images. eg a 1px black image at 20% transparency, etc. I think the last time I saved anything in GIF was for a favicon... Xiella _______________________________________________ gimp-user-list mailing list gimp-user-list@gnome.org http://mail.gnome.org/mailman/listinfo/gimp-user-list
