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From: Jolly Roger on 10 Feb 2010 09:10
In article
<5ee2c90e-b38e-4c2a-8fda-5e76262fe5da(a)f8g2000yqn.googlegroups.com>,
Frank <gno52(a)windstream.net> wrote:

> On Feb 10, 6:13�am, Malcolm <malcolm(a)invalid> wrote:
>
> > It depends on the file �Most picture, audio, and video formats are
> > already compressed, so won't get much smaller. �Text files compress
> > well.
>
> What about pdf files?

Yes, PDF files may be highly compressed.

That said, there are ways to control what gets put into PDF files during
creation, and there are programs that can strip information out of PDF
files as well, as long as the PDF files are DRM-laced.

--
Send responses to the relevant news group rather than email to me.
E-mail sent to this address may be devoured by my very hungry SPAM
filter. Due to Google's refusal to prevent spammers from posting
messages through their servers, I often ignore posts from Google
Groups. Use a real news client if you want me to see your posts.

JR
From: Steve Hix on 10 Feb 2010 12:58
In article
<593c0644-7783-49ca-a779-c4e3247f86cd(a)z26g2000yqm.googlegroups.com>,
Frank <gno52(a)windstream.net> wrote:

> V10.6.2
> When I highlight a 2.7 mb file on desktop and click on compress on
> finder file pulldown menu the result is a 2.6 mb zip. That is hardly
> worth the effort when I need a file less than 1 mb in size. Is this
> the best it can do, or am I missing some technique?

Completely depends on the source being compressed. Some things, like
jpeg files, may not compress much at all, other types of files can
compress a lot.
From: Salmon Egg on 10 Feb 2010 17:11
In article
<5ee2c90e-b38e-4c2a-8fda-5e76262fe5da(a)f8g2000yqn.googlegroups.com>,
Frank <gno52(a)windstream.net> wrote:

> On Feb 10, 6:13�am, Malcolm <malcolm(a)invalid> wrote:
>
> >
> > It depends on the file �Most picture, audio, and video formats are
> > already compressed, so won't get much smaller. �Text files compress
> > well.
>
> What about pdf files?

I am no expert, but my experience with pdf files obtained from scanned
images is that I am usually surprised by how small they are.

Bill

--
An old man would be better off never having been born.
From: Tom Harrington on 10 Feb 2010 17:47
In article <sehix-0CEE37.09582310022010(a)5ad64b5e.bb.sky.com>,
Steve Hix <sehix(a)NOSPAMmac.comINVALID> wrote:

> In article
> <593c0644-7783-49ca-a779-c4e3247f86cd(a)z26g2000yqm.googlegroups.com>,
> Frank <gno52(a)windstream.net> wrote:
>
> > V10.6.2
> > When I highlight a 2.7 mb file on desktop and click on compress on
> > finder file pulldown menu the result is a 2.6 mb zip. That is hardly
> > worth the effort when I need a file less than 1 mb in size. Is this
> > the best it can do, or am I missing some technique?
>
> Completely depends on the source being compressed. Some things, like
> jpeg files, may not compress much at all, other types of files can
> compress a lot.

And in some cases, attempting to compress a file that can't be
compressed will give you a bigger file than the one you started out with.

--
Tom "Tom" Harrington
Independent Mac OS X developer since 2002
http://www.atomicbird.com/
From: Steve Hix on 10 Feb 2010 18:27
In article <tph-A4D755.15473910022010(a)localhost>,
Tom Harrington <tph(a)pcisys.no.spam.dammit.net> wrote:

> In article <sehix-0CEE37.09582310022010(a)5ad64b5e.bb.sky.com>,
> Steve Hix <sehix(a)NOSPAMmac.comINVALID> wrote:
>
> > In article
> > <593c0644-7783-49ca-a779-c4e3247f86cd(a)z26g2000yqm.googlegroups.com>,
> > Frank <gno52(a)windstream.net> wrote:
> >
> > > V10.6.2
> > > When I highlight a 2.7 mb file on desktop and click on compress on
> > > finder file pulldown menu the result is a 2.6 mb zip. That is hardly
> > > worth the effort when I need a file less than 1 mb in size. Is this
> > > the best it can do, or am I missing some technique?
> >
> > Completely depends on the source being compressed. Some things, like
> > jpeg files, may not compress much at all, other types of files can
> > compress a lot.
>
> And in some cases, attempting to compress a file that can't be
> compressed will give you a bigger file than the one you started out with.

The which is a bit startling the first time you see it happen.
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