6

I thought there is only PNG8 and png32, but photoshop has option for PNG24, and fireworks has all 3 options. Which is better for web world?

Also when I export PNG24 with alpha transparency in fireworks, it always adds background color, but in photoshop, it exports with alpha .

9

"Also when I export PNG24 with alpha transparency in fireworks, it always adds background color, but in photoshop, it exports with alpha ."

You need a PNG32 for the alpha channel, so when you save a PNG24 with an alpha channel, PhotoShop actually makes it a PNG32.

In Fireworks, it actually let's you manually make the decision, so if you choose PNG24, you lose the alpha channel in the process.

0
0

As far as i know 8 bit equals 256 colors, you can choose to have a color transparent (gif) which leaves you with 255+1 solid alpha. Rgb = 24 (3 × 8) 256 for red, 256 for green, 256 for blue (about 16,7 mil. Combinations) , adding another 8 bits for a 256 degree alpha chanel, so 4x8 = 32bits for rgba

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.