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ricjava

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Photoshop versus illustrator

Hi,

I'm new to graphics. I'm a programmer but know nothing about graphics and want to start learning. May i know  

1)what is the difference between Photoshop and illustrator?

2) When to use which?

Tha nks
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will_scarlet7

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ricjava

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Hi....thanks for answers so far. Btw, are photoshop and illustrator use the same file extension.....?
Pls elaborate  a bit..:)
Hi ricjava,

Photoshop's native file extension is PSD; Illustrator's is AI.

You can save an Illustrator file in EPS format and then open it in Photoshop, but when you do that Photoshop will rasterize it -convert it to a raster image- and rend it uneditable in Illustrator again. Similarly, you can save a Photoshop file as EPS and open it in Illustrator, but you won't be able to edit it. The reason for this interoperability is that in some cases you may have a shape drwan in Illustrator that you need to open in Photoshop to add some filters effects. Or you may have a raster photograph in Photoshop and you want to bring it to Illustrator to add text or other vector-based effectrs to it.

Good Vibes!

Lobo
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ASKER

hi Lobo,

>You can save an Illustrator file in EPS format and then open it in Photoshop, but when you do that Photoshop will rasterize >it -convert it to a raster image- and rend it uneditable in Illustrator again.
So you mean to say it is uneditable after the file opened by Photoshop(without saving by photoshop)?

>Or you may have a raster photograph in Photoshop and you want to bring it to Illustrator to add text or other vector-based >effectrs to it.
I thought u said that the file once opened by photoshop, it will be uneditable by illustrator?

Thanks
ricjava
Hi ric,

>>So you mean to say it is uneditable after the file opened by Photoshop(without saving by photoshop)?

If you save the Illustrator EPS in Photoshop it it becomes uneditable in Illustrator. If you simply open it and close it without saving the file will not change.

>>I thought u said that the file once opened by photoshop, it will be uneditable by illustrator?

Let's say you have this nice vector-based image of a frame you've done in Illustrator and you want to place a small photo in it. You can import the raster Photoshop EPS file and place it where you want it. You can still edit the vector parts (say change a colour or a shape), but you can't edit the photo beyond a basic resizing. I.e. you can't change the colour of your eyes in it, you'd have to go back to Photoshop and do the colour change there and then import it into Illustrator.

Good Vibes!

Lobo
Hi ric,
ThanX for the points. I hope I was able to be some help. Just curious though about the "B". It's not really that I think I deserved an "A", but Lobo seems to have answered all your questions in fairly good detail no?

God bless!
Sam
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ASKER

Hi,

I thought B means good answer. :) Yea maybe I shouldn't be too strict in  giving grading.

Cheers,
ricjava