How do I make jpegs to this spec ??

How do I make jpegs to this spec ??

Here is the requirement pics with these specs: 170dpi with the longest
length of the pic at 30cm; saved as a no. 5 jpeg (the compressed file size
should be between
500 and 800k).

I have photoshop

 

Why do you have to give some specific requirement to confuse yourself?
Yes, I believe Photoshop has the option but I ain't gonna give it to you
until I know exactly what you are trying to do, or I don't want to give you
a rope to hang yourself.

Or I think I smell something may have to do with printing, but the whole
message doesn't make any sense.

 

.... or some one else made the spec and he's trying to fit?

To the OP, Knot to worry ...

Image size, set dpi first, then set longest dimenstion then OK, then SAVE
AS: to jpg with '5' as quality. In the future, you should acquaint yourself
with F1 and the topic of the manipulation.

 

Hi.

It is a weird specification. Resolution required is in Dots per Inch, yet
physical size is in Centimetres.

It would have been more sensible to have specified the image size in Inches.

It would have been really sensible to have required a specific number of
pixels on the long side, with the image at 170Ppi.

Roy G

 

I know, the requirement is so weird and incomplete. It just don't make
any sense.

 

Dunno ... I could make on that fit!

What difference is there between specifying pixels, inches or cm to a
specific dpi/ppi.? Seems their print process likes a certain dpi/ppi, and
they want a certain physical resultant size.

xx CM = yy IN = zzz pixels when dpi/ppi is specified. Simple math, eh?

NB'er to me!

 

It fits your emptied skull alright <bg>

 

That's not weird at all. In the metric world, it is normal to specify
length in centimeters. However, 'pixels per centimeter' or 'dots per
centimeter' are hardly ever used, not even in the metric world. So to
give the size in centimeters and the resolution in ppi (or dpi) is done
every day in my part of the world.

Now *that* would be weird. If you give the length in pixels, the
resolution is no longer relevant.

To answer the question: It's pretty simple. Go to 'Image Size' and check
the 'Resample Image' checkbox. Then first enter 170 ppi as resolution,
and then 30 as length in centimeters. Hit 'OK' and save as JPEG with
quality 5. That's all there is to it.

 

Oh goodie, can't comprehend any variation outside personal thinking, then
has to turn personal.

BTW, "it just doesn't" ... !

 

Of course it doesn't, can you get it? Because just like the printing
style

- Something has value

- Emptied skull has no value

Combining them together it says "you can't fit something into nothing".
That's why I don't have any interest in chatting with you <bg>

 

Then why do you reply, and repeat your lack of comprehension?

FWIW, the above comment of mine was in reference to YOUR poor grammar!

TAFFLOASP.

 

I'm smashing your emptied skull hoping to make some hole to fill it with

Thanks, but that's my problem, you need to get some brain to work on yours

It's plain stupid!

 

it is plain stupid making yourself unpopular in a newsgroup filled
with treasures of information. We can do without your kind of
language. And it is easy to make use of USENET's anonymity,
but your problems will start when the people with the knowledge
simply ignore your questions. Then you will know why.

Dave

 

I'm smashing your emptied skull hoping to make some hole to fill it with

Thanks, but that's my problem, you need to get some brain to work on yours

It's plain stupid!

Is Joel the same guy as Joe??