Layered PNGs in GIMP

Posted 21:16, 6/5/2008, in Ubuntu

I quite often get website creative supplied in PNG format, particularly from our main designer who uses Macromedia Fireworks. Fireworks saves these by default with layers, which can be useful when convering layouts into HTML/CSS, but I never understood why these layers were gone when I opened the file in the GIMP.

It turns out, the reason is because... the PNG format doesn't support layers! The format does allow for files to contain some extra data, which is apparently where Macromedia stores the layer data. So much for the 'portable' network graphics format.

Please login to post a comment.

Elsewhere

External URLs/articles that may be of interest:

ZF Blog Application tutorial

This is the first part in a multi-part tutorial in creating a blogging app using ZF. It serves as a great introduction for people trying to get started with the framework, and looks at application structure, mvc, templating and ACL.

Drupal in the Enterprise

An interesting look at why the author doesn't feel Drupal is ready for the enterprise. Drupal certainly appears to be one of the better CMSes around, so some of these criticisms seem a little harsh when you compare it to some of its inferior competitors. However many can also be applied to PHP web apps in general.

BBC admits Linux usage figures were off

Recently the BBC said one of the reasons they didn't push for a Linux compatible version of their iPlayer was that their website only received about 600 visits a week from Linux users. They've now admitted this figure is closer to 100,000. Just a bit off then.

Online ad tracking 'opt out' list

Lobbyists in the US are trying to get an 'opt out' list created for online advertising, so users could choose not to have their browsing habits tracked. The irony is, for this to work technically, some system somewhere would have to create a huge list of IP addresses and personal information, which seems to defeat the point.