Resolution and page size

ROCKSTEADY · Posted: Mon Nov 08, 2004 6:04 pm Post subject: Resolution and page size

I wanna make a document that is 8.5 x 11 in. at 150 resolution(CMYK). My problem is whenever I change the resolution to anything higher then 70 the workspace is enormous when viewed at 100%. Is there a way to have a higher resolution then 70 and still have it 8.5 x 11 in?

witam · Posted: Mon Nov 08, 2004 6:07 pm Post subject:

72dpi is the resolution of your screen. So if you go larger it will show it larger on screen because it only has that resolution. In reality it will remain 8,5x11.

Not really a solution..

BryanDowning · Posted: Mon Nov 08, 2004 6:29 pm Post subject:

Resolution is a tricky thing to undertand.

If you set up a document at 300 dpi that means there are 300 pixels for every square inch of the physical size. The physical size of a document has noting to do with the resolution. The reason you get a better quality print with a higher dpi is that it's cramming more pixel information into the same physical space.

Note that when you are working with any large image in photoshop it won't look perfect at certain zooms. You'll notice some imperfections at zoms such as 66.67% and 33.33%. It usually looks pretty true at 25% or 50%. If you want to see exactly what it looks like zoom in to 100%.

Remember though that your screen resoultion will usually be 72 dpi, so anything larger than that will appear much larger. There is no way around this.

ROCKSTEADY · Posted: Mon Nov 08, 2004 7:42 pm Post subject:

ahhh ok! thanks for the help. i just got a new job doing some print work for a company and never physically printed stuff out from photoshop. didn't wanna run the risk of having them print out some huge billboard when they just wanted a little sign haha.

appreciate the help, thanks again!

thehermit · Posted: Mon Nov 08, 2004 8:49 pm Post subject:

thehermit · Posted: Mon Nov 08, 2004 8:51 pm Post subject:

How do you think they produce Billboards? 20'000dpi ?

vel · Posted: Mon Nov 08, 2004 9:18 pm Post subject:

ur kidding right.. lol

BryanDowning · Posted: Mon Nov 08, 2004 10:57 pm Post subject:

Well of course the dpi will change depending on the set resolution of the monitor (800x600, 1024x768, etc...) and the physical size of the monitor (15 inch, 17 inch, etc...). The number 72 is just used a standard reference for screen resolution. Most web graphics are also set to 72 dpi. I think the number comes from before you could switch screen resolutions. Maybe on the old macs?

I always use 72 dpi to represent the screen resolution when explaining to someone the concept of resolution itself.

To find the screen resolution on your own monitor all you have to do is take the width dimension of your screen resolution and divide it by the physocal width of your screen. So if my 19 inch monitor had a resolution of 1024x768 and it was 15.6 inches wide, the equation would be:

1024 ÷ 15.6 = 66 dpi (roughly)

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