Basic Resolution Questions

KH
Posted By
kat_hayes
Nov 23, 2006
Views
221
Replies
3
Status
Closed
I am fairly new to PS and am hoping someone can help me with the following:

1. Does the resolution of an image copied to a destination image always become the resolution of the destination image?

2. If so, how does this affect the physical dimensions of the image being copied to the destination image?

3. Is there a formula to determine how changing the resolution of an image will affect its physical dimensions?

Thanks for any help!!!
Related Tags
question resolution

How to Improve Photoshop Performance

Learn how to optimize Photoshop for maximum speed, troubleshoot common issues, and keep your projects organized so that you can work faster than ever before!

P
Phosphor
Nov 23, 2006
Number of pixels divided by the resolution in pixels-per-inch = physical size.

Examples:3000px / 300ppi = 10 inches
3000px / 100ppi = 30 inches
3000px / 72ppi = 41.67 inches
BG
barry_gray
Nov 24, 2006
Think pixel dimensions not pixels/dots per inch
Example, you have an image that is 300 pixels x 300 pixels. In an image that is 300 pixels per inch your 300×300 will be 1"x 1" In an image that is 100 pixels per inch your 300×300 will be 3"x 3"

Phos you be quicker on the draw as usual. 🙂
MD
Michael_D_Sullivan
Nov 24, 2006
And when you copy or drag an image to another canvas, it will remain the same size in pixels, regardless of what the dimensions of the two images are in inches, cm, or furlongs. For example, Image #1 is 2000 x 3000 pixels and is tagged as 300 ppi, so its dimensions are 6.67 in x 10 in; Image 2 is 720 x 1080 pixels and is tagged as 72 ppi, so its dimensions are 10 in x 15 in. If you are thinking in inches, you will think image #1 is smaller than image #2, but when you try dragging #1 on top of #2 you find that #1 doesn’t even completely fit. That’s because the image has more pixels than #2; when it’s moved into a canvas with a resolution of 72 ppi, #1 suddenly becomes 27.78 in x 41.67 in and won’t fit in the canvas.

Must-have mockup pack for every graphic designer 🔥🔥🔥

Easy-to-use drag-n-drop Photoshop scene creator with more than 2800 items.

Related Discussion Topics

Nice and short text about related topics in discussion sections