Slideshow and images format and compression


Author Message
jbenisek

Posted: 7/19/2012
Quote message 

I put some large images in artisteer as header images, when I exported I saw they were png's and over a MB each so I compressed them to JPG's under 200kb each, then imported them. When I exported the next time the files were still png's and only a little smaller?

Why would you change JPG's to PNG's when I have jpg as file format.
 
Jbenisek

Posted: 7/19/2012
Quote message 

in IE10 desktop on W8RP the slideshow only works to two images the stops. In compatibility mode in IE10 no images show up at all in the header slideshow.

Tested on W7 IE9 and it works if a little slow.
 
JustWayne

Posted: 8/21/2012
Quote message 

JBenisek,

One benefit of using PNG's is that you can have a transparent / opacity (%) background.

Also...JPGs are good for images, but not so good for straight lines in a file.

http://www.webopedia.com/DidYouKnow/Internet/2002/JPG_GIF_PNG.asp




 
Dave B

Posted: 8/21/2012
Quote message 

Quote jbenisek:

I put some large images in artisteer as header images, when I exported I saw they were png's and over a MB each so I compressed them to JPG's under 200kb each, then imported them. When I exported the next time the files were still png's and only a little smaller?

Why would you change JPG's to PNG's when I have jpg as file format.


I have to agree with this to some extent. If you are using a jpg than you obviously aren't using transparency. So to use png which can be very large files sizes is a bloat issue. Not on their (Artisteer) radar in many cases.
 
JustWayne

Posted: 8/21/2012
Quote message 


Got it...if you are using an JPG it is obvious than you are not using transparency.....um ok,

I suppose, What I should have answered is
"Why I would Stick with PNG vs JPG is to keep the options of TRANSPARENCY"

Perhaps Aretisteer's reasoning would be
Patent and Quality Concerns. PNG was developed as patent-free...JPG and GIF has had patent issues every 3-5years.

or
B: Looks and Quality preferences.