photoshop paper size
#1
Posted 22 January 2006 - 07:13 AM
#4
Posted 26 January 2006 - 02:35 PM
#5
Posted 27 January 2006 - 04:54 PM
#6
Posted 13 April 2006 - 08:20 AM
-BBHD
#7
Posted 13 April 2006 - 10:34 AM
#8
Posted 13 April 2006 - 11:11 AM
-BBHD
#9
Posted 13 April 2006 - 11:47 AM
here comes the math part, it isnt difficult you know:
f.ex.
you need full printed A4 page, and you know ppl are gonna watch it at close range, so you want crisp type and sharp contours --> this means you decide (which never happens imho) you wanna print it at 300 dpi on a laserprinter:
A4 297 210 11.69 8.27
calculation: 11.69 inches x 300 pixels/inch = 3507 pixels long
8.27 inches x 300 pixels/inch = 2481 pixels wide
So, this would mean you'd have to make a Photoshopfile of 2481 x 3507 pixels at a resolution of 300 dpi.
(plz dont ever do that :wacko: , the file would be 24,9 MB big BEFORE you have 1 object on it. 10fold this when you got some layers and effects on it)
#10
Posted 13 April 2006 - 02:26 PM
-BBHD
#11
Posted 13 April 2006 - 09:03 PM
#12
Posted 14 April 2006 - 07:56 AM
-BBHD
#13
Posted 14 April 2006 - 10:42 AM
suppose you took a picture with a digital camera and you had the following settings (on your camera): 1280 x 960.
So the picture you took is 1280 pixels wide and 960 pixels high (and bdw at this point this has nothing to do with the "dpi-resolution")
Now, when you import this picture in photoshop, it will obviously still be 1280 pixels wide and 960 pixels high.
Now if you want to print this, the dpi comes into play:
question:
can i print this photo with good quality in "lettersize-format"?
Calculation:
Lettersize format is (in landscape) 11 inches wide and 8.50 inches high
So...
1280 : 11 = ca.116 dpi
960 : 8.5 = ca.113dpi.
Conclusion:
In photoshop you would need to change the settings in ca. 115 dpi, which means you will see the pixels and the quality would be mediocre.
(normally they say that ppl wont notice any pixels from 120 - 150 dpi)
Remark:
so you cant change the pixels x pixels from a drawing (without loosing some of the quality that is), but depending on the dpi-value in your settings the same picture will be smaller or bigger when you print it.
Screenresolution is usually 72 dpi
Printresolution 120dpi, 150 dpi, 200 dpi or 300 dpi, rarely ppl go beyond 300, and always try to have a resolution which is a "whole division" of your printer resolution (just to avoid some other issues).
Edited by Scythar, 14 April 2006 - 10:53 AM.
#14
Posted 15 April 2006 - 04:32 PM
I still have no clue. So you're saying.....if I want to just get a white document in photoshop - that's it - that's the same size as a real piece of paper, I have to use a 1280x960 document with a resolution (that's the number - I think usually 72 - in the box under "document size") of 115?
#15
Posted 15 April 2006 - 08:10 PM
with 300dpi (I normally work with 300dpi for my printing stuff) would be 2480x3508
#16
Posted 16 April 2006 - 04:50 AM
#17
Posted 16 April 2006 - 11:07 AM
An A4 page by 150dpi should be: 1240x1754px (portrait format)
with 300dpi (I normally work with 300dpi for my printing stuff) would be 2480x3508
So I do this:
But that comes out way too big. My problem is the numbers in the "Resolution" box. I tried 11x8.5 in inches and a resolution around 96-98 usually works, but it's not exact.
-BBHD
#18
Posted 16 April 2006 - 02:35 PM
the dpi has nothing to do with the 1240 x 1754 resolution
like the settings you have there the picture would be 8.27 inch wide and 11.7 inch tall --> ca. the A4 format (off course, it wont print all of it, since most printer are no edge-to-edge printers and need some kind of marge)
now, if you would change that setting to 300 dpi, without changing the pixels your drawing would be only 10.5 cm wide and 14.85 cm high (a quarter of a A4 page)
I know i said i gave up, but i never mean that, so dont worry... keep asking.
#19
Posted 16 April 2006 - 05:04 PM
I want to create a render than can be printed on a 40″ x 30″ poster in 150 DPI:
Open your calculator and simply multiply the dimensions in inches by the DPI level you want. So, for a this poster size, you would calculate 40 x 150 and then 30 x 150 to arrive at the final required resultion of 6000 x 4500 pixels. Set your render size to 6000 x 4500 and export away!
Scythar already mentioned and if you read Faken's Blog you will maybe understand it:
http://www.danrichar...e-dpi-equation/
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