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Opens only in 72 dpi

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Opens only in 72 dpi anja80 25 Nov 12:32
  Opens only in 72 dpi Ofnuts 25 Nov 13:30
   Opens only in 72 dpi Rob Antonishen 25 Nov 16:50
anja80
2010-11-25 12:32:10 UTC (about 14 years ago)
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Opens only in 72 dpi

Ok, I have a picture that is 300 dpi. When I open that one it states that it is only 72 dpi. I can change it to 300 dpi again, but haven't I lost any data from the image file then?

Ofnuts
2010-11-25 13:30:26 UTC (about 14 years ago)

Opens only in 72 dpi

On 11/25/2010 01:32 PM, anja80 wrote:

Ok, I have a picture that is 300 dpi. When I open that one it states that it is only 72 dpi. I can change it to 300 dpi again, but haven't I lost any data from the image file then?

The DPI is just an indication... the only place where it really matters is in the "New image" dialog where instad of entering a dimension in pixels you can enter a size in inches/centimers and a DPI. Otherwise the only thing that really counts is the size in pixels.

Rob Antonishen
2010-11-25 16:50:53 UTC (about 14 years ago)

Opens only in 72 dpi

The DPI is just an indication... the only place where it really matters is in the "New image" dialog where instad of entering a dimension in pixels you can enter a size in inches/centimers and a DPI. Otherwise the only thing that really counts is the size in pixels.

It does make a very big difference if one is using scaled viewing rather than dot for dot. (View->Dot for Dot checked or unchecked)

When dot for dot is checked, the image DPI doesn;t matter as one image dot will be shown as one screen dot.

When dot for dot in unchecked, however, the image DPI and screen PPI will be used to calculate the display size, so a 300px by 300px image that is 300dpi will be shown as 1" by 1" (or 72px by 72 px for a screen resolution of 72PPI) at 100% when the dot-for-dot is unchecked, and 4.16 by 4.16 inches (300px by 300px) on the same 72PPI screen.

-Rob A>