Printing One to One

[David_P...@adobeforums.com]

I could use some assistance trying to figure out how I can print a image at one to one so that the print is at size as. I believe there is a quick way of calculating this but unsure where to begin.
My images will include a ruler as a reference point and the goal is to have a print so the ruler reproduces at its actual size.
Thanks!

[g_ba...@adobeforums.com]

Ps> Image> Image Size: Document Size height/width will give you your One size

Those sizes will translate to your print (if you set 100% or something similar in your print utility)...

Get a copy of: Real World Scanning Halftones by David Blatner

[Ramón_G_Castañeda@adobeforums.com]

Courtesy of the late John Slate:

John Slate - 3:08pm Jul 15, 05 PST (#7 of 10)

If you want to get exact about displaying print size:

Open a new 500 pixel x 500 pixel file in Photoshop, and set it to 100%
(view actual pixels) if it does not come up that way.

Get out a ruler and measure the image on screen in inches.

Divide 500 by the measurement.

This is the resolution of your screen.

Move the decimal point 2 places to the right in that number, and write
it down somewhere. Call it your monitor factor.

For InDesign or Illustrator viewing actual size assumes a monitor of 72ppi,
so to fine tune actual size in those apps, divide your monitor factor
by 72 to get the % view you need for those apps to see same size.

For Photoshop, divide your monitor factor by the resolution (in ppi) of
whatever image you are working on to determine the right zoom percentage
for that image.

Enter that figure in Photoshop > Preferences > Units & Rulers > New Document Preset Resolutions > Screen > Resolution >. Then you can just select the Zoom tool and click on the "Print Size" button to have your image automatically show at actual print size on your screen.

(You can also enter that figure when you create a new Photoshop document, and that will set the correct print size on all your files, including existing ones.)

[Ramón_G_Castañeda@adobeforums.com]

This web site explains ppi resolution:

<http://www.scantips.com/>