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19 votes
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Why is my vector file pixelated after printing it on big glass surfaces?

If a file format specifies DPI, it is most probably not a vector file. DPI, dots per inch, indicates the amount of pixels over the width of an inch in the resulting file. This is inherently a pixel ...
Vincent's user avatar
  • 25.2k
16 votes

Dot vs. Pixel - rudimentary explanation

In simple, rudimentary, terms... A dot is the smallest possible spot of ink on paper. A pixel is the smallest possible spot of light on a screen. Dots are never on a screen and pixels are never on ...
Scott's user avatar
  • 209k
14 votes
Accepted

Dot vs. Pixel - rudimentary explanation

(It's clear now that a simple answer to this question doesn't exist. Our language simply isn't precise enough. I like the two other answers, but would still like to give an answer seen more from the ...
Wolff's user avatar
  • 20.9k
8 votes
Accepted

Unable to create image of a certain size (25mm x 11mm, 300DPI)

Because you are working with mm units, and the PPI uses imperial units. Because if you have exact mm you need to have halved pixels, which you can not, so the number is rounded to its nearest pixel ...
Rafael's user avatar
  • 37.4k
8 votes

How to get a 1:1 scale print preview?

Could I suggest the "really, really obvious empirical method"? Get a sheet of A4. Hold it up to the screen. Change the image zoom scale until it matches. Forget DPI & pixel density. You just ...
Tetsujin's user avatar
  • 5,016
7 votes

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

Determining PPI Resolution given the Viewing Distance from the image For Raster (halftone screened) graphics, the PPI resolution is determined in two steps using only basic arithmetic. There's ...
Stan's user avatar
  • 5,061
7 votes

DPI Vs. PPI Vs. Image dimension, what should be taken to consideration?

There is no such thing as a 300PPI image PPI is not an inherent property of an image. There is no such thing as a 300PPI image, or a 72PPI image. PPI is just a useful measurement for determining the ...
Cai's user avatar
  • 40.6k
6 votes

Dot vs. Pixel - rudimentary explanation

This is more like a long comment than a answer. The reason why you fail to get this is simply you have no need for this information. The only way you can ever understand this is if you care about the ...
joojaa's user avatar
  • 58k
6 votes

Why is my vector file pixelated after printing it on big glass surfaces?

I've previously run into a similar problem when trying to print high-resolution artwork for circuit-board manufacturing: the prints were on transparencies to allow for UV-photo-resist exposure and so ...
Nathan's user avatar
  • 61
5 votes
Accepted

Is a DOT comprised of many PIXELS?

I like a lot the reasoning of the question. I will break a little a rigorous analysis for the sake of making this answer as simple (and practical) as possible. Each dot consists of more than one ...
Rafael's user avatar
  • 37.4k
5 votes

Is a DOT comprised of many PIXELS?

Pixels have no size. Pixels are not a physical entity, they don't exist. You can't hold them, you can't touch them, you can't measure them. A pixel is merely the smallest increment your screen can ...
Scott's user avatar
  • 209k
5 votes

How do I change the dpi in Properties of a jpeg from 96 to 300?

Almost any decent program can do this. But depending on which one you are using you need to "block" the file size. I understand that Abbyy you are refering to is the OCR program. And somehow is a ...
Rafael's user avatar
  • 37.4k
5 votes
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How important is it to use the correct resolution?

When working on a project, its obviously important to use the right resolution Well, it's important to work at the correct size, although arguably not that important*. Work in vectors for anything ...
Cai's user avatar
  • 40.6k
5 votes

export document as a JPEG on Illustrator with very high quality for typography print

Don't use jpg or any raster format. Save as either a native .ai file, a .eps if transparency isn't an issue, or a .pdf file. All of these formats are best suited to save Illustrator artwork for print....
Scott's user avatar
  • 209k
5 votes
Accepted

What are good resources for royalty-free stock images that are at least 300 DPI?

99.99999% of Royalty free stock image sites will allow for the download of 72ppi images, but then you traditionally open the image in Photoshop and resize without resampling. Note that the Resample ...
Scott's user avatar
  • 209k
5 votes
Accepted

How to get a 1:1 scale print preview?

Make sure that the screen definition as seen by Gimp is the real one: Edit>Preferences>Interface>Display>Monitor resolution (in 2.8: Edit>Preferences>Display>Monitor resolution). ...
xenoid's user avatar
  • 17k
5 votes

Changing DPI in GIMP

You can use Image > Print Size, to change the PPI without resampling the image, i.e. while maintaining the same size in pixels. In the Print Size dialog, you can either set the PPI you want and GIMP ...
Billy Kerr's user avatar
  • 86.8k
5 votes
Accepted

Why does image size decrease when decreasing DPI (resolution) in Photoshop

First, one should understand that PPI, and subsequently DPI, really only matter for printing. They have no real bearing on images destined for the web or displays. PPI of web images doesn't matter. A ...
Scott's user avatar
  • 209k
4 votes

Changing the DPI of Inkscape’s PNG export

1) If you want a file 1920x1080 px, the ppi is TOTALLY irrelevant, because you want it for an electronic medium. 2) In the case of the export focus on the pixel size. Yes, on the moment of the export,...
Rafael's user avatar
  • 37.4k
4 votes

Resizing 280m print in Adobe Photoshop

280 m^2 is big, scratch that its enormous in size. It is not that its not possible to fill, it is. It is just that this is a very big task, your going to need quite the team to pull this off. You are ...
joojaa's user avatar
  • 58k
4 votes
Accepted

What resolution images could I use for posters on the wall?

It depends on how close you expect the viewer to stand, as vision is based on angular frequency. If your image has a certain size and you need to print it at some size then there is not much you can ...
joojaa's user avatar
  • 58k
4 votes

Changing the DPI of Inkscape’s PNG export

Inkscape 1.0 supports this now here... File → Export PNG image → Advanced → pHYs dpi setting
moon's user avatar
  • 141
4 votes

DPI Vs. PPI Vs. Image dimension, what should be taken to consideration?

The fundamental issue You want to know what width and height your image has to be, measured in pixels. The PPI value (or DPI, if used interchangeably) can help you determine this. It literally stands ...
Michael Schumacher's user avatar
4 votes
Accepted

Calculating dots per pixel when printing an image

From the article: For example, if you are printing a 150ppi image at 600dpi, each “pixel” will consist of 16 dots (600 dots/150 “pixels” = 4 rows of 4 dots per “pixel”). 600 divided by 150 is 4, ...
Cai's user avatar
  • 40.6k
4 votes

Convert PX to DP

Photoshop uses PX as a unit of measure for the forms and in development the app uses DP, I know how the conversion works From PX to DP The conversion will depend on how the original design in ...
Marc Edwards's user avatar
4 votes
Accepted

Macbook Pro resolution issue

MacBook Pros have Retina displays. This means that there are 2880x1800 physical pixels on your screen. However, as you have noticed, there's only 1440x900 logical pixels. If the MacBook calculated ...
kookiekween99's user avatar
4 votes

What happens to print quality if I double the DPI at the same dimensions?

Depends on what the unit behind h and w are. If H and W are physical units (which i assume they are) then: Nothing really. Yeah technically you can do better interpolation than your printers ...
joojaa's user avatar
  • 58k
4 votes
Accepted

Change Illustrators "native" SVG resolution

There isn't a way to change Illustrator's default 72ppi setting, as far as I'm aware. The problem you are describing has been around for some time, and there are questions about it on the Adobe ...
Billy Kerr's user avatar
  • 86.8k
4 votes

What should have in a Scalable logo?

Start building the logo in a vector application, and worry about artboard size and resolution later: with a vector format logo, your artwork will be scalable to ANY artboard size and ANY resolution. ...
Lucian's user avatar
  • 29.3k
3 votes

DPI Vs. PPI Vs. Image dimension, what should be taken to consideration?

It is just a conversion factor and only comes to play if you print your image. Think of it as a post-it note attached to the image saying: "Could you please print this image as x units wide". When no ...
joojaa's user avatar
  • 58k

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