PNG is more widely supported now. Internet Explorer and Firefox can
open PNG files (but IE can't display transparency for PNG). It should
generate smaller file sizes than PDF. And also you don't need Acrobat
Reader, which probably will load faster in your client's machine.
Apple chose PNG over JPG or PDF, probably because it is a better
graphics format, smaller than PDF (file size) and is compatible with
any graphics viewer (including browsers).
Steven
On 06/05/2005, at 11:36 PM, Daniel Kerr wrote:
Hi All
I just took an Apple-Shift-4 screen shot of something, and instead of
getting the nice normal pdf file I'm so used to getting on my
desktop I now
get a png file. So I open it up in preview and save it as a pdf,
and notice
I get a quality loss.
OK, so I've had a long day, so this could be me,...but has anyone else
noticed this and find it a bit of an annoyance?
I'm used to just taking a quick screen shot, getting it as a pdf
then firing
it off to clients and suppliers etc. Does this mean that if I now
send these
file to a PC person I might run into some issues?
A quick google search tells me it should be alright,..
<http://www.filext.com/detaillist.php?extdetail=png>
And even worse,..a further search gives me an answer to my own
question...
:o)
---quote---
PNG is better for screenshots, because it's lossless; this makes
sure that
every pixel in the graphic is exactly what it was onscreen, rather
than the
approximations JPEG does (besides which, I've noticed that many JPEG
compressor implementations seem to have this undying hatred for
shades of
red). Gamma correction is nice when people view PNGs with tools
that support
them, because it further ensures accuracy.
However, you pay for this accuracy in terms of file size. In
earlier OSX
versions, when you could directly save screenshots as PNG, OSX was
actually
quite good at making sure you got the smallest files you possibly
could. Now
that's not possible, though there are command-line tools like
pngcrush that
you can use to crunch them down better.
---end quote---
,..but I just thought I would get a few opinions. :o)
Which leads me to my next question,.....why did Apple change
this??? :o)
Hope everyone's weekend is going well!
Enjoy!
Kind Regards
Daniel
---
Daniel Kerr
MacWizardry
Phone: 0414 795 960
Email: <danielATmacwizardryDOTcomDOTau>
Web: <http://www.macwizardry.com.au>
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