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Creating a 300dpi png in photoshop


Question

Ive creating an email footer in Photoshop. The footer is 650px W x 300 px H. I want to set the resolution of the footer to 300dpi so that the text is readable at a smaller size, but when i do so the size of the canvas area doubles.

I will be exporting this as a .png, is there any way to get a 300dpi 650x300px footer without it becoming 1300x600px ?

2015/10/24
1
0
10/24/2015 8:21:00 PM

Change the resolution setting to 300.

Leave the measurement at pixels/inch. Notice that the size of the image goes from 8" × 10" to 4" × 5", as shown below. That’s because you’re only changing the distance between pixels as you modify the resolution of the file. You have fixed overall pixel dimensions of 1200 × 1500. When you set your resolution to 300 ppi, the math dictates that the image is 4" × 5" (4" × 300 ppi = 1200 pixels, and 5" × 300 ppi = 1500 pixels). When the resolution is set to 150 ppi, the image must be 8" × 10" in size (8" × 150 ppi = 1200 pixels, and 10" × 150 ppi = 1500 pixels).

Check this out:

Doing the Simple Math Heading.

http://www.graphics.com/article-old/photoshop-fundamentals-changing-image%E2%80%99s-resolution-and-size

2015/10/25
1
10/25/2015 12:18:00 PM