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What is DPI?
- Thread starter Adam
- Start date
Dots per inch as in printed output 
,whereas Photoshop uses PPI,or Pixels per inch,but the printer uses dots of ink to reproduce your image on paper,so therefore DPI,and PPI square digital pixels on your monitor to be reproduced by your printer as DPI.
I hope that made sense......not sure I put that clearly enough.
Everyone is a newb at some time or other,no one is immune
Stu.
,whereas Photoshop uses PPI,or Pixels per inch,but the printer uses dots of ink to reproduce your image on paper,so therefore DPI,and PPI square digital pixels on your monitor to be reproduced by your printer as DPI.I hope that made sense......not sure I put that clearly enough.
Everyone is a newb at some time or other,no one is immune
Stu.
dv8_fx
Retired Administrator
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Think nothing of it, yours is a harmless but important question.
DPI means dots per inch. In printing terms, this represents the number of dots reproduced by a desk printer in every square inch of print. Less number of dots means less quality or lower resolution print. To get a good idea, look at a newspaper photo and you'll notice that its made up of minute dots. At a distance, it fools the eye into thinking it sees a solid image.
Conversely in monitor image display terms, you have PPI - pixels per inch. This is how a monitor displays or tries to reproduce an image electronically. File size depends on ppi. At 72ppi, the image file is small, the norm for web use. Everything you see on this page is at 72ppi, though some web sites may contain higher resolution images. This would slow down the load time on your computer. At 150 or 300ppi, this means a lot of MB depending on the no. of colors the image has. This would be suitable if you were to send the image or file to a service bureau for printing.
With this in mind, your on your way to creating proper size images.
Welcome to the forum. And that's good, your not shy to ask questions. That's how we all learn.
vee
DPI means dots per inch. In printing terms, this represents the number of dots reproduced by a desk printer in every square inch of print. Less number of dots means less quality or lower resolution print. To get a good idea, look at a newspaper photo and you'll notice that its made up of minute dots. At a distance, it fools the eye into thinking it sees a solid image.
Conversely in monitor image display terms, you have PPI - pixels per inch. This is how a monitor displays or tries to reproduce an image electronically. File size depends on ppi. At 72ppi, the image file is small, the norm for web use. Everything you see on this page is at 72ppi, though some web sites may contain higher resolution images. This would slow down the load time on your computer. At 150 or 300ppi, this means a lot of MB depending on the no. of colors the image has. This would be suitable if you were to send the image or file to a service bureau for printing.
With this in mind, your on your way to creating proper size images.
Welcome to the forum. And that's good, your not shy to ask questions. That's how we all learn.
vee
Acck I didnt even realize you were there bud 
I remember once on the second older PS board then this one,I was posting a tute,did it really quickly as well,buuut 3 people still got posts in the middle of it,mind you they were messing with me,so I deleted a post of theirs every now and then,they were really scratching thier heads for a while over that one
Stu.
I remember once on the second older PS board then this one,I was posting a tute,did it really quickly as well,buuut 3 people still got posts in the middle of it,mind you they were messing with me,so I deleted a post of theirs every now and then,they were really scratching thier heads for a while over that one
Stu.
sPECtre
Guru
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Welcome, ADAM! they expalines you what you need to know... If you need to know dpi/lpi/ppi/spi, etc inside and out, check this PDF, extract from Dan Margulis' Professional Photoshop Book :
http://www.ledet.com/margulis/PP7_Ch15_Resolution.pdf
More extracts and articles :
http://www.ledet.com/margulis/articles.html
(now, we need to find all the links that Gauss would have found!)
http://www.ledet.com/margulis/PP7_Ch15_Resolution.pdf
More extracts and articles :
http://www.ledet.com/margulis/articles.html
(now, we need to find all the links that Gauss would have found!)
