Pixels per inch: a measure of resolution. Either (a) the resolution of a image when it is printed at a specific physical size; or (b) the physical resolution of a display device. DPI (dots per inch), which refers to the output resolution of a print device, is often used in error in place of PPI.

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15
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9answers
85k views

What resolution should a large format artwork for print be?

For wall sized graphics and large banners (e.g 3m x 5m), what is an acceptable PPI for print. As i understand it 300 PPI is the typical for 'small' artworks (esp. for clean text resolution), however ...
21
votes
11answers
13k views

What DPI should be used for what situations?

I've been seeing the word 'DPI' pop up quite a lot when I export my work out in Photoshop and Illustrator. While I know that DPI stands for 'dots per inch', and that if you have too low of a DPI on an ...
10
votes
5answers
18k views

What is the difference between DPI (dots per inch) and PPI (pixels per inch)?

There are lots of other questions on Graphic Design which partly cover this, e.g. What DPI should be used for what situations?. However, I have become frustrated at the number of questions and ...
3
votes
2answers
787 views

Inept knowledge about dpi and ppi,please help?

I have designed a web header 1000x98 at 72 ppi using Macromedia Fireworks for our website and we are planning to print a billboard using that header? The printer has told us that he needs the image ...
13
votes
5answers
26k views

How can I export an image from Illustrator image at multiple sizes?

I am new to Adobe Illustrator and I have a logo image which I need to use in 5 or 6 different sizes. The logo image was created in Adobe Illustrator, but when I try to save the image to PNG or JPEG ...
3
votes
1answer
9k views

What DPI/PPI should a 4 by 6 meter outdoor billboard be designed at?

I'm creating a 4 x 6 meter (~13 x 20 feet) outdoor billboard advertisement that includes an image and vector logo (rasterized) in Photoshop. I was working using a smaller size for design purposes, but ...
-2
votes
1answer
367 views

iphone design in photoshop which PPI has to be set 326? or 72? [duplicate]

i am working with 72PPI for both android and iphone ..but some has been reffered 326 has to be set for iphone can i know what difference will occur? i am getting same result in 72 itself
3
votes
2answers
13k views

iOS 4 retina display resolution size

I'm a little confused about the resolution here, I know the dimensions suppose to be: 320x480 points but what do I need to put for the resolution? e.g. 300 dpi? I'm designing on CS5.
3
votes
2answers
6k views

Photoshop Resolution for Web Design?

I'm a programmer, not a designer, but I am trying to learn design as it would be very helpful. I am following a tutorial on PSD|TUTS+ and it doesn't specify the resolution I should be working with. My ...
3
votes
4answers
2k views

Will changing image resolution from 300 to 72 without resampling reduce the quality?

This is a rather stupid question so I apologise in advance but I just wanted to be 100% sure! I have a set of photos at 300 ppi that are 800 pixels by 800 pixels and need to convert them in Photoshop ...
3
votes
1answer
668 views

What are the smallest dimensions/resolution I can use for a 7ft x 2ft banner? [duplicate]

I am designing a banner which will be printed at 7ft x 4ft. I am using Photoshop CS4. The images are not vectors. The original poster artwork has been done at 300 ppi for A4 printing. I was ...
3
votes
4answers
23k views

Creating large-scale high-resolution documents in Photoshop

I am a student trying to create collages in Photoshop sized* 4' x 4' and larger, resolution 300dpi, to be digitally printed on cotton canvas and silk. The enormous file size causes my iMac to lag or ...
2
votes
3answers
537 views

Which Photoshop features are affected by different DPI or PPI tags?

A Photoshop document‘s physical size, pixel density (DPI/PPI) and pixel dimensions are all linked. Bitmap images contain bitmap data, which are a specific size (pixel dimensions). They also contain a ...
1
vote
4answers
2k views

What's the difference between 72ppi and 300ppi?

I created two documents with same pixel dimensions (1280x768). Document 1: 72ppi Document 2: 300ppi When I saved both in .png, they have the same size on the hard disk. Why do I need PPI? Why ...
0
votes
2answers
4k views

Large size banner design issue..help needed immediately? [duplicate]

Possible Duplicate: What DPI should a large format artwork for print be done at? I want to design a large banner for computer shop and banner will be viewed from a far distance. I will be ...