How to rescale and print photograph in actual size

Forum|Forum|3 years ago
May 12, 2022
2 Antworten
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I have a photograph of a door which I want to print in its actual size. Here's what I have done but it failed to achieve what I wanted.

I used the Ruler Tool to rescale the photograph according to an actual measurement of the distance between A and B. I was hoping that this corrects the distortion by the camera and sets the correct size. But when I checked the "Image Size", it shows the overall dimensions of the image based on the current resolution (in my case it was defaulted to 300 when I imported it from my camera.).

So my question is, how do I know the actual sizes of the photograph (assuming I'm not able to measure it in real life), based on the measurement of one line in the photograph?

Any help is appreciated!

michae

macOS

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Semaphoric

Community Expert

Do you know the actual physical dimensions of any part of the door? If so, you can measure that with the Ruler tool, and then go to Image > Analysis > Set Measurement Scale > Custom. You put in the physical dimensions and assign a unit, and you can then measure any part of your image, and see the physical dimensions of that.

M

michaeljz24430063Autor

Known Participant

Thanks so much for the idea! I did that and now I can measure the total length of the photograph and get the number. So that takes care of my problem.

I want to piggy-back a related question: after I do the steps you suggested that set the measurement scale, is there a way to 'fix' the unit setting so that the rulers on the horizontal and vertical Rulers around the image shows the actual units? This would be helpful for what I want to do with the rescaled photograph: I want to divide it up to sizes of 8.5"x11" so that I can print the divided parts on letter-sized papers. I understand that, I can use the Ruler Tool to measure 8.5" and mark it etc. But if the Rulers show the actual units in Inches, then I don't have to do the measurement. Any ideas?

Thanks again!

michael

M

michaeljz24430063Autor

Known Participant

Hi Conrad,

Thanks again for illustrating these steps. I really appreciate it.

The first step I took was to try printing on my printer without using the 'borderless' paper setting so that it doesn't enlarge it. Taking your suggestion, I created a custom-setting with paper size at 8.5x11"; and all margins set to 0. But the print comes out with white borders on all four sides: 3 of them about 1/8" and the other one 3/32". Because of that, the real image was shrunk on the print (I created a red border of thickness 1/2" as a gauge and they are printed thinner than 1/4", as you can see in the attached picture.) Do you have a suggestion how to get around THAT problem?

With this problem, I assume that printing from Acrobat or Illustrator using automatic tiling won't work, right?