Hi Phillip:
Adobe may be stupid enough, but they're not RICH enough. Apple is now worth
more than Microsoft: and they have a large and vigorous Legal Department.
Only someone with a death wish would take them on in American courts
The PDF choice for Apple was a "quick" (and eloquent...) fix to a problem.
You either hand-code EVERYTHING that appears on the screen, pixel by pixel,
in multiple sizes because pixels won't scale, or you adopt some kind of
system-wide vector-based graphics format for your display interface.
Apple always used QuickDraw. Microsoft still uses GDI. GDI is a flavour of
WMF.
Come the new generation, Apple had a choice: either re-invent QuickDraw to
do all the fancy transparency and layering tricks PDF will do, or "buy
something in". Microsoft had the same problem.
Microsoft got lucky: GDI already supported layers and transparency. They
just tweaked it a little, and gave it a new name: "Silverlight".
Apple looked around and realised that if they grabbed PDF they could not
only solve their immediate problem, but they could get knock-on benefits.
Once you have a robust PDF implementation as a system service, you can call
it everywhere, including for things such as printing and file-saving.
Microsoft, on the other hand, had to run down the road to the Adobe Shop and
pay for an implementation of PDF to use in Microsoft Office on the PC. On
the Mac, they just use the system version
Now, there may be cheaper, less complex, and more CPU-efficient ways of
drawing circles and triangles on the screen these days (which is what the
current slanging match between Apple and Adobe is all about...). But PDF
works, and the side-benefit is that the vast majority of other applications
out there can use it, and their developers are already familiar with it.
I am by no means an expert in this area, but I understand that one issue
that is elevating Mr Jobs' blood-pressure is that Microsoft kicked a goal
with Silverlight. Not only is it murderously efficient (it has to be, it's
part of the Windows core...) but its internal architecture made it easy to
update it to do all the modern "shock and amaze" tricks. So Microsoft got
their "pretties" almost for free, Steve has to work for his...
Worse, Steve sees the future of computing as being in your pocket. And
Silverlight is a lot more battery-friendly than PDF. Recall that a modern
computer spends 80 per cent of its time drawing pictures on the screen? If
you use half the battery capacity for 80 per cent of what you do, you have a
compelling attraction.
Now some very strange things have happened in computing. Apple is now using
Intel chips, for example... But I somehow don't think Mr. Jobs will be
doing his UI in Silverlight any time soon
However, Adobe better sharpen
their pencils, real soon now, otherwise Steve's going to use something else.
Cheers
--
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matters unless I ask you to; or unless you intend to pay!
John McGhie, Microsoft MVP (Word, Mac Word), Consultant Technical Writer,
McGhie Information Engineering Pty Ltd
Sydney, Australia. | Ph: +61 (0)4 1209 1410 | mailto:
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