Computer Graphics with Photoshop

Author

Reducing file size

Chuck Jurgens

2007-08-27, 6:14 pm

I have created a 3 1/2" x 2" business card layout in 600 dpi resolution. I
converted it to a flat file but the file size is still 14M !!

In the past I have been able to reduce this SAME layout down to 3.5M (in
..psd) but I can't remember how to do it.

Any suggestions?

RC_Moonpie

2007-08-27, 6:14 pm

On Mon, 27 Aug 2007 16:20:51 -0400, "Chuck Jurgens"
<jurgens@bellsouth.net> wrote:

>I have created a 3 1/2" x 2" business card layout in 600 dpi resolution. I
>converted it to a flat file but the file size is still 14M !!
>
>In the past I have been able to reduce this SAME layout down to 3.5M (in
>.psd) but I can't remember how to do it.
>
>Any suggestions?
>

you might try to bicubic downsample it to 300 dpi. Without seeing your
design, thats your call, but often, imagesetters will sort of do the
same thing, depending upon how sophisticated they are... some cant use
600 so its overkill, 300 is fine.

that'll go a long way to getting you down to size

tacit

2007-08-27, 10:14 pm

In article <zlGAi.36497$t9.11575@bignews7.bellsouth.net>,
"Chuck Jurgens" <jurgens@bellsouth.net> wrote:

> I have created a 3 1/2" x 2" business card layout in 600 dpi resolution. I
> converted it to a flat file but the file size is still 14M !!

Unless your image contains alpha channels, that's not possible. A 3.5x2"
image at 600 pixels per inch is 7.2 MB RGB, or 9.6 MB CMYK.

In any event, 600 pixels per inch is overkill for a business card; even
for offset printing, it need not be more than 300 pixels per inch.

--
Photography, kink, polyamory, shareware, and more: all at
http://www.xeromag.com/franklin.html

jjs

2007-08-28, 3:14 am

Chuck Jurgens wrote:
> I have created a 3 1/2" x 2" business card layout in 600 dpi resolution. I
> converted it to a flat file but the file size is still 14M !!
>
> In the past I have been able to reduce this SAME layout down to 3.5M (in
> .psd) but I can't remember how to do it.

It's over the top big. Regardless, the printing device will lower the
resolution/bits to its native settings. Oh, and to CMYK, too.

Michael J Davis

2007-08-28, 6:14 am

tacit <tacitr@aol.com> opined
>In article <zlGAi.36497$t9.11575@bignews7.bellsouth.net>,
> "Chuck Jurgens" <jurgens@bellsouth.net> wrote:
>
>
>Unless your image contains alpha channels, that's not possible. A 3.5x2"
>image at 600 pixels per inch is 7.2 MB RGB, or 9.6 MB CMYK.
>
>In any event, 600 pixels per inch is overkill for a business card; even
>for offset printing, it need not be more than 300 pixels per inch.
>

Although not directly relevant to your problem (designed for printing),
for anyone else reading this, I am amazed at how good PSE 'Save for web'
algorithm is.

My processed files are often 14Mb - I then reduce them to 1200 pixels
(around 2.5 x linear reduction (ie. 1/6 the file size) and save for web
at the 10% level. this ends up with a file between 60 and 150kb of
remarkable quality.

Ideal for sending friends and relatives. Look at 'original size' photos
on my Flickr pages. (It's not 'original' of course!!)

Mike

[The reply-to address is valid for 30 days from this posting]
--
Michael J Davis

Pictures at http://www.flickr.com/photos/watchman/
<><
For this is what the Lord has said to me,
"Go and post a Watchman and let
him report what he sees." Isa 21:6
<><

Dawid Michalczyk

2007-09-01, 6:14 pm

Chuck Jurgens wrote:
> I have created a 3 1/2" x 2" business card layout in 600 dpi resolution. I
> converted it to a flat file but the file size is still 14M !!
>
> In the past I have been able to reduce this SAME layout down to 3.5M (in
> .psd) but I can't remember how to do it.
>
> Any suggestions?
>
>

Perhaps in the past you used 8bit and now you use 16bit channels? Makes
big difference in file size.
--
Dawid Michalczyk
http://www.scifi-art.info _Sci-Fi art directory_