actually there's a simple method.

a pixel is the information set in a colored square.

how many pixels are packed into 1" is your resolution.

so for example the formula would be

300 pixels (divided by) 72dpi = 4.167"

300 pixes (divided by) 300dpi = 1"

Thusly you can reverse this too:

300 pixels (divided by) 4.167" = 72dpi

300 pixels (divided by) 1" = 300dpi

And lastly

4.167 (times) 72dpi = 300 pixels

1" (times) 300dpi = 300 pixels

The formula is basic algebra - just plug in your known numbers and you get the rest of the information.

And in photoshop you can take a look at the raster image by going to Image >> Image Size. If you turn on the Ruler in photoshop - the quick method between measures is to right click on the Ruler and then choose which ever to display.

and I usually design in inches for print and pixels for web. Always set up your workspace first and place things into that. Always resize your images as best can before placing into your main design area.

Vector images do not have any of these limitations as they are pure mathematical calculations and can be sized to any size without degradation.

a pixel is the information set in a colored square.

how many pixels are packed into 1" is your resolution.

so for example the formula would be

**pixels (divided by) dpi = inches**300 pixels (divided by) 72dpi = 4.167"

300 pixes (divided by) 300dpi = 1"

Thusly you can reverse this too:

300 pixels (divided by) 4.167" = 72dpi

300 pixels (divided by) 1" = 300dpi

And lastly

4.167 (times) 72dpi = 300 pixels

1" (times) 300dpi = 300 pixels

The formula is basic algebra - just plug in your known numbers and you get the rest of the information.

And in photoshop you can take a look at the raster image by going to Image >> Image Size. If you turn on the Ruler in photoshop - the quick method between measures is to right click on the Ruler and then choose which ever to display.

and I usually design in inches for print and pixels for web. Always set up your workspace first and place things into that. Always resize your images as best can before placing into your main design area.

Vector images do not have any of these limitations as they are pure mathematical calculations and can be sized to any size without degradation.

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