Questions about the output resolution of a print device. `dpi` refers to dots of ink on a printed page and thus to a property of a printer or other printing device. The term is often used in error, in place of `ppi` (pixels per inch), which is a property of an image file or a display device.

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23
votes
5answers
64k views

is it mandatory to keep 72 dpi for web design? What if I create in 200dpi?

I have been designing web banners in photoshop for more than a year but never considered the DPI. I was using the default 72DPI, but now I want to know is it necessary to create web designs in 72DPI? ...
22
votes
11answers
23k 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 ...
15
votes
5answers
43k 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 ...
13
votes
1answer
5k views

I need to print an image a certain size. What dimensions and resolutions should I use?

(This question is meant to be a resource to direct others to given that this is a common question.) Given the task of creating an image that will be printed at a certain dimension, what pixel ...
10
votes
6answers
2k views

Why does Photoshop call ppi “resolution”?

There are some things in Photoshop's "new" dialog window that I find troubling: Assume an image of 1000 pixels by 1000 pixels. How can there be an input box for ppi? Ppi a property of the result of ...
8
votes
2answers
2k views

How would you print extremely small words (microprinting)

The Problem: I am working on a project and I wanted to add super fine print (words and graphics). When I say small I am not referring to 7pt type at 300dpi business card small. I am referring to ...
6
votes
3answers
13k views

How to see an embedded image's dpi (ppi) in a pdf in Acrobat Pro?

The following situation baffled me slightly: after preparing a pdf in a different program I wanted to make sure that an embeded image in the pdf file had the right dpi, yet I found no way in adobe ...
6
votes
3answers
3k views

Tools to simulate different DPI screens?

When designing for mobile web, its important to check designs at the physical screen size of target device. Merely looking at your PC / Mac screen at designs of the same resolution isn't enough: * ...
5
votes
3answers
368 views

Why is my edited image smaller than my original image but yet retains the same resolution?

I used IrfanView to change a JPG's DPI from 96 to 300 as I want to print it on a bag for my child. The new imaged created is significantly smaller 6 MB vs 682 kB. The detail summary shows the same ...
5
votes
1answer
4k views

Do I need full 300dpi resolution photos for designing a poster?

I'm working on a poster for a local event. It has a photograph in the background. The poster itself is designed to be 11x17, which at 300dpi is about 3300x5100. Now the photo in the background does ...
4
votes
3answers
11k views

Illustrator: View -> Actual Size smaller than life size

I'm using Illustrator CS6 on OS X. When choosing View -> Actual Size, the displayed elements are smaller on the screen than their actual size, say in centimetres. How can I "calibrate" Illustrator ...
4
votes
2answers
2k views

Batch resize and OUTPUT multiple images

I need to batch resize multiple images and thats really easy in Photoshop insert a folder and get a output in anther folder. But i need this to output multiple images of all the images inside the ...
4
votes
5answers
3k views

What dimensions should I use when designing for the Kindle Fire?

I've reviewed all of the android design documentation, but I am still a little confused on how I should setup my Photoshop file if I am making an app for just the Kindle Fire. It's 1024x600 with 160 ...
4
votes
1answer
165 views

What does MMH stand for?

I'm looking at some software that does a DPI check based on an upload of an images. It checks the resolution of the image against the specified DPI (300) and MMH (44x88). Does anyone know what MMH ...
4
votes
4answers
5k views

Will 300 dpi (non-vector) result in blurry artwork for screen printing?

I created a .psd artwork on a t-shirt that has several "sponsor logos" on it sized at around 1x1inch each. I created the file at actual size with 300dpi. I then got an email back from the printer ...
4
votes
1answer
62 views

PPI in the Wild: implications of setting or providing a PPI flag in an image file

Apropos the perennial retina vs PPI questions: We have an answer to a recent question about setting up an image which, in my opinion, correctly states: "pixels are all that matter." But I have dealt, ...
4
votes
2answers
194 views

Printer Resolution

The Windows 7 printer preferences dialogue box tells me: Print pixels: 1416 x 2152 dots Does this mean that I should always provide an image of 1416 x 2152 pixels to achieve max quality? How is DPI ...
4
votes
1answer
524 views

What's the best way to make a pdf book cover for Create Space?

I downloaded a paper back book cover template from Create Space and loaded it up into Inkscape (and used GIMP to crop the background images to fit the template). What steps should I take, and what ...
3
votes
2answers
1k 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 ...
3
votes
2answers
16k 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
4answers
48k 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 ...
3
votes
2answers
19k views

What resolution do I need for images placed in InDesign?

I am creating a A4 Print PDF file from InDesign. From the InDesign file I am doing the following : File > Adobe PDF presets > [High Quality Print] Doing this exports a PDF file from InDesign pretty ...
3
votes
4answers
725 views

What is the highest possible print resolution in book publishing?

I want to publish an art book with a major publisher. I need to finish my artwork and then approach publishers, so I cannot ask for printer specifications beforehand. My art is digital, and I want to ...
3
votes
3answers
2k views

How to change Adobe Illustrator CC's pixel to inch ratio?

We all know today the devices have different ppi. Traditionally a pixel is a point, which is 1/72 an inch. But today, iPhones have 326 pixel per inch why the point should remain the same for ...
3
votes
2answers
2k views

When creating PDF from an image, what determines the screen dimensions when viewed at 100%?

I would like to use pdf for ease of use and annotations when creating previews of my screen designs. However, no matter how I create my pdf, I can't seem to figure out what determines the 100% view of ...
3
votes
2answers
1k views

How to raster vectors (AI) into 1bit tif in 2000dpi

I need to raster files 1m x 0,70m to 1-bit TIFF. Pretty much home RIPing. AI CS 5.5 only goes until aprox. 500dpi and PS renders vector-PDFs or AIs in 406 dpi max. Then you have to resize x5 to get ...
3
votes
1answer
200 views

Setting DPI for huge print

I need to create a really large print of 4Mx2.5M. I've never designed such a large print and I need help in setting the right DPI for this. I am really clueless of how this is supposed to go. If I'm ...
3
votes
1answer
54 views

Stochastic Printing DPI?

Does anyone know the DPI for the stochastic screening? We got a new Heidelberg CTP Suprasetter and we're just testing... and the results are amazing... but the resolution that we're working on are ...
3
votes
1answer
116 views

How to view a unitless raster image at 1:1 given a desired print size?

I want to preview a map that I'm generating before sending it off to the (expensive) printer. Unfortunately, the tool used to make it (TileMill) has no concept of paper sizes, DPI or any units. It ...
3
votes
1answer
158 views

Cleaning up DPI/PPI for scanned graphics to put on the web?

I am trying to figure out the most efficient method for editing raw scanned documents so they look best at 72PPI when published on a website. I have an example here which is from a 600DPI source scan. ...
3
votes
2answers
255 views

Measuring minimum resolution in Photoshop/GIMP

I am following Apple's iTunes connect guide (as of today 13th November 2013) for designing an image. At page 239 of their guide I am confused on the following: Background artwork must be at least ...
2
votes
3answers
1k 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 ...
2
votes
5answers
215 views

How can a print have a resolution of 9600 x 2400 dpi?

While reading about the CANON PIXMA MG5150 printer (http://www.canon.de/printers/inkjet/pixma/pixma_mg5150/), there was a stated print resolution of 9600 x 2400 dpi. How is this value meant here, ...
2
votes
1answer
519 views

Is scaling an image by 200% the same as doubling dpi/ppi?

I am sure this is a simple question, but the answers I have received from people are never simple. I am trying to apply an answer to this question for scaling images for the iOS Retina display.
2
votes
2answers
2k views

Saving Image for 150 LPI

I need to save an image from Illustrator at 150 LPI (lines per inch) for a printing vendor. How do I do this? Bonus Question : Reccomended file format? (JPEG, TIFF, etc)
2
votes
1answer
907 views

What ppi do I need to save a photoshop image for a printer asking for a 300dpi jpeg?

A printer is asking for a 300 dpi jpeg. I have set the image size to the correct printing size but what resolution do I set the ppi in photoshopCS2 to for 300 dpi. Also when saving a jpeg there is a ...
2
votes
1answer
133 views

Should I get poster printing for higher resolution than 5400 x 3600 for 36“ x 24”?

The highest "common" resolution I've seen for printing a poster is 5400 x 3600 for the reasonable price of (~$15), but I have the ability to make the images I want to print (procedurally generated) as ...
2
votes
1answer
91 views

Can you include retina and non-retina images within the same sprite?

When building a web page, I've always created 2 different sprites for my icons. A sprite for normal images and a sprite for retina images. The retina images are saved out twice the size and twice the ...
2
votes
1answer
1k views

Vectors or 300 dpi TIFFs for printing?

I have worked with CreateSpace before and used AI vector images on the cover and interior PDF of a book, but the images all printed pixelated. After complaining, CreateSpace told me to only use 300 ...
2
votes
1answer
591 views

Can I set DPI per image/page as opposed to document-wide in InDesign?

I am making a book with some of my photography. I have not been blessed with the best camera in the world so my images range between 1100px squared to 2000px squared. The print size per image will be ...
1
vote
5answers
1k views

Will increasing the dpi of my image (without re-sampling) hurt print quality?

I'd like to start making prints, but all of my work is set at a resolution of 72. Are there any negative effects to increasing the resolution to 300? I'm very new to this, but from what I've read so ...
1
vote
3answers
6k views

Save for Web in Photoshop with custom DPI

I am writing user documentation using DITA which allows me to easily generate deliverables in PDF, CHM and web formats. The images need to be saved with a DPI of 110 so that they are displayed ...
1
vote
2answers
123 views

Designing icons for devices with different PPI

I'm having some problems on the icon PPI. For example, when I make an icon for an iPhone 6 application I know that the icon will be 326 PPI. But if I do a 256x256 px icon that can be used on iPhone, ...
1
vote
1answer
3k views

Best dpi for printing a 48x18 inch at 200%?

I have an image in photoshop I want to print at 200%, and right now it's 48x18 inches, and the resolution is 72 dpi. I read somewhere that changing it to 600dpi would allow me to scale it by 200% at ...
1
vote
3answers
12k views

All PDF's appear to be 72 dpi, no matter what

I'm having some trouble creating a PDF with Photoshop. The client wants the final file to be "a PDF at 300 dpi". I have an image (3300 x 2550 pixels @ 300 dpi) in Photoshop. (11" x 8.5" canvas) It ...
1
vote
2answers
139 views

High resolution pictures in Posters made with PowerPoint 2013

I'm currently creating a poster (size A0) in PowerPoint 2013 and want it to be in the best quality possible. I used vector images where possible, but for some images I had to use raster graphics. Now ...
1
vote
1answer
304 views

Scaling image to suit 480dpi Android screen(xxhdpi)

I am newbie designer. Have designed the screens for an android app using illustrator and measurements are in pixels. My developers have asked me to provide the images @480DPI. My online research did ...
1
vote
1answer
575 views

Is there a way for Lightroom to export without changing the ppi?

Currently I am creating .psd images "to scale" by changing the ppi so that 1mm = 1mm. This way I can drop the image in InDesign and it will print at the actual size. I cannot however find a way for ...
1
vote
0answers
36 views

Designing 3 Billboards

So I have to design 3 billboards and this is pretty much my first time doing it where it goes to print. I'm used to designing small scale stuff so this task is a bit daunting. I would just like to ...
1
vote
0answers
43 views

What is the proper sizing/image/resolution or whatever for shooting artwork for submission? [duplicate]

I create colored pencil art and I'm very confused about the whole thing of resolution: A professional print provider is doing the photo shoot of my artwork, and I was just handed an image that is 72 ...