Questions tagged [dpi]

Dots per inch, where a dot is the smallest imaging element in an output medium (droplet of ink, for example, or subpixel in an LCD screen).

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Why don't printers print square dots/pixels?

An 8.5x11 piece of paper should have 77% less pixels/dots on the 8.5" side. However, most consumer printers seem to print at "Dots per inch" (DPI) of 1200x600, 2400x600, 4800x1200, or ...
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Does Shutterstock have a minimum resolution, or pixel density?

Similar to Noise reduction, upload to shutterstock declined I uploaded some photos to Shutterstock, which got through to review. They were all shot on an Olympus OMD E-10 Mark III, as JPEG's. All had ...
spikey_richie's user avatar
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Paper recommendation for 1200 dpi print?

I want to print out something really small for testing camera and lens resolution capabilities. I have a HP 4000 Laserprinter which is able to print at 1200 dpi. I am wondering what paper might be ...
Thomas's user avatar
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How to edit an image without changing its dpi? [closed]

I have an image with a dpi of 600,600, but when i edit it, the dpi reduces to a very small value. How can I edit it without changing the dpi?
Mobi Zaman's user avatar
2 votes
2 answers
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What does it mean when a scanner or printer has asymmetric resolution (e.g., 600 x 1200)?

What does it mean when a scanner or printer has asymmetric resolution (e.g., 600 x 1200)? If you print/scan something that is quadratic, would you get different quality if you rotated it 90 °? Isn't ...
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Printing picture on a canvas [duplicate]

I am trying to print a picture on a canvas, I would like the canvas to be 16x24 in size. I was told that my picture is 75 DPI, is the resolution good enough for the canvas to be nice and clear?
S. Moskowitz's user avatar
1 vote
2 answers
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Reduce image sharpness and DPI [closed]

Why does the sharpness of the imag decrease when I increase the DPI of an image?
Merlin's user avatar
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Calculate the maximum DPI a camera can shoot [duplicate]

I am trying to determine at what DPI a certain camera can shoot, namely this model, however the technical specs at the official site do not give any details about it. Is there a way to calculate ...
Hayk's user avatar
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Are 72 dpi and 300 dpi images with the same resolution the same quality? [duplicate]

I have a lot of travel photos I was hoping to sell as downloadable prints on Etsy but do not know how the whole dpi thing works. When I click on the properties of my picture on my computer it says ...
Robin Leneghan's user avatar
8 votes
1 answer
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How do I make my image comply with the requirements of this photography competition?

I am participating in a photography competition. There is something that I want to ask you about: We may require the originals of the awarded photographs to be submitted by the relevant ...
ghena yousef's user avatar
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How does PPI relate to DPI in photo metadata?

I have been asked to provide pictures in JPEG format at a resolution of 300DPI. My computer give me a picture sizes in kilobytes and Photoscape the photo editing package that I use, converts ...
Steve Dell's user avatar
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Scanning film negatives - Resolution, DPI and file size [duplicate]

I use a Epson V800 scanner to scan my 35mm film negatives. I've set the resolution on the software (silverfast 8) to 3200dpi and the result was a tif file with 4500x3000px and 15mb. If i select that ...
nioxys's user avatar
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Does bumping DPI improve the print quality?

I am about to publish a book and after uplaod the contents, I was notified various errors esp about the images that were less than 300 DPI (115 dpi, 150 dpi, 200 dpi). I was told that they can can ...
TheTechGuy's user avatar
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How to calculate the max size of an image based on the canvas size?

How to calculate the maximum height or width of an image based on the canvas size or poster card size? example: image size is as below: ...
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Can a blind person resize a photo independently?

I am a totally blind computer user. I encountered an accessibility barrier when I was attempting to use the site http://www.vitalchek.com/ to order a birth certificate. They require you to scan or ...
HeavenlyHarmony's user avatar
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3 answers
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Calculating cost of Inks

I am working on an app in which I need to estimate the amount of ink used to print something and corresponding cost. I am not sure if this is the right place to ask this question. If not, please point ...
harshitgupta's user avatar
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72 DPI or 300 DPI - Which Is Better For Web And Print Both? [duplicate]

Firstly, this may seem like a repetitive post. But please help me clear my doubt. It's based on my particular use case. I am making a website where images will be available on web, but they can also ...
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1 answer
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How to scale up an image for print. How large can i go? [duplicate]

I have an approximately 2500 pixel x 3500 pixel image. How do I figure out the largest print that I can get from it? At the 300 dpi printing standard that would only yield about 8x12" but I need ...
Akhil Sahgal's user avatar
1 vote
3 answers
2k views

How to submit a picture with 12mp and 300dpi to a contest? [duplicate]

I was wondering how can I make an image stay 12mp and 300dpi. I want to participate in a contest about street photography but their requirements are that the image must be 12mp and 300dpi. I'm new to ...
Jorge luis's user avatar
4 votes
4 answers
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Is there a way I can scan an A4 photo at 4800 dpi?

I have the Canon CanoScan LiDE 220 Compact Scanner, it claims to be able to scan at 4800 x 4800 dpi. However when I try and scan at this dpi, it says it cannot scan a full A4 photo and tells me to ...
GoldenGonaz's user avatar
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2 answers
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Trying to print A1 size paper, but confused over dpi/resolution settings

I would like to print something on A1 size paper, and just opened my Photoshop to edit the picture and I am confused about somethings. I found online which size to choose, but other than that all the ...
samayo's user avatar
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2 answers
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Is 4288 X 2848 pixels an unfriendly ratio for quality printing and framing or am I missing something?

I have a Nikon D5000 that shoots 4288 X 2848 pixels. When I take pictures, I'm not thinking of how I may need to crop the picture later on or add a border / matting so that it fits into a common ...
Gort's user avatar
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Is there a way to change camera settings (Nikon D40x) to a higher dpi? [duplicate]

I know increasing the size of the photo (S,M,L) does not affect the dpi, but refers only to the pixels. My camera shoots at 300 by default, but sometimes I want a crisper look when I get larger ...
Bobbie J's user avatar
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2 answers
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Too low DPI for canvas [duplicate]

For my mom's birthday we had a photoshoot with the grandchildren. The photo we would like to print on a canvas is 3530 x 2353 and the desired size is 140 cm x 93.3 cm. Now the software says that the ...
Silke Leenen's user avatar
0 votes
4 answers
143 views

Do cameras assume a particular size of print when reporting DPI?

When a photo indicates that it is, say, 300 DPI, is that based on a standard sized print? i.e. is there a specific standard size that the DPI is based on, and if so what is that size?
Wossname's user avatar
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1 answer
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Optimal DPI Setting in Olympus OMD EM5 mii? [duplicate]

I had been using the default 350 dpi, but the resulting files are too small to sell to most stock photography sites online. For a standard print at 300dpi, they are great. A bit low for my metal art, ...
obtenebrix's user avatar
-3 votes
1 answer
382 views

How big can I print this image? [duplicate]

I have a JPG file with a resolution of 3000x2077. How big can I print this image ? Thanks in advance
Viswanath Saj's user avatar
2 votes
3 answers
231 views

What will a commercial print service do if the image I submit doesn't have enough pixels for the desired DPI?

If I have a 4000px × 3000px image which I want to print at 200dpi, so its size will be printed at 20" × 15". If I send the image to a commercial printers and ask it to be printed at 40" × 30" do they ...
Paul Taylor's user avatar
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3 answers
7k views

How does the dpi setting affect the image exported from Lightroom [duplicate]

If I export an image from Lightroom (as a jpeg) I can specify to resize it to particular dimensions, or keep it as it is. But regardless of that there is also a dimension field as in dots per inch but ...
Paul Taylor's user avatar
4 votes
1 answer
794 views

Any reason not to set ALL photos to "300dpi"? [duplicate]

I run a site where multiple photographers upload and sell their photos to my users. Some of them just want to buy a JPEG, some of them want to buy a JPEG to print. You and I both know that a ...
Codemonkey's user avatar
5 votes
2 answers
2k views

How many printed dots are needed to represent a pixel with an inkjet printer?

Context I have a digital picture with a size of x*y pixels. I'm trying to figure the maximum print size I could produce and still have an image which "look good" (relatively to human perception at a ...
Olivier's user avatar
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Senior picture 72 dpi vs 300 dpi [duplicate]

So i took my senior pictures and it said it was at 72 dpi. My school said they needed pictures to at least 300 dpi. I researched and found out that 300 dpi is the best printing quality. I changed the ...
Sam's user avatar
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3 answers
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How should I specify minimum quality requirements for images submitted to my image archive?

I hope this doesn't cover too much of the same ground as the typical DPI question. I am a technical writer working with my company's marketing staff on developing an image archive. Because most ...
Vidro3's user avatar
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4 votes
2 answers
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What is meant by pixels and DPI for photo submissions?

I am submitting a photo for an exhibit. They require a jpeg to be evaluated and then a print, if accepted. The rules indicate "Entries must be in JPEG format sized at 300 dpi on a CD (4” width of ...
user26641's user avatar
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3 answers
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Is this rather high resolution possible to achieve?

I'm looking to make a sticker with wood texture printed on it for a cable concealer of 1 meter. From my calculations, this requires a digital image with a DPI of 300 and a resolution of (1300x11810)px....
Kensing's user avatar
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1 answer
995 views

Can a image have different XResolution and YResolution?

In EXIF data I see stuff like XResolution = 72 YResolution = 72 I'm trying to display that on a site, and I was wondering if I should display both or just a single "72dpi" ? Are there any cases ...
Mindy's user avatar
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34 votes
8 answers
30k views

Is there any practical difference between saving at 300ppi or 72ppi?

I often see statements in discussions about web displayed image quality that go something like this: "I only upload pictures at 72 dpi and 1200 pixels on the long edge, so if someone copies and prints ...
Michael C's user avatar
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1 vote
2 answers
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What would look better - reduce the size of image and print with lower DPI or increase the DPI instead?

I'll give an example, to make my question a bit more clear. If I have e 12Mpx camera (D700, always shooting in raw format), the highest possible resolution is 4256 × 2832. Obviously, in most cases, ...
Kiril Kirov's user avatar
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1 vote
2 answers
55k views

What is the optimal resolution required of a picture to print on an A1 size canvas?

I am working on a poster in which the background is a photo that I took myself (18 MP). I am wondering what would be the best resolution for printing this photo on an A1 canvas. This might sound very ...
Error404's user avatar
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1 vote
3 answers
12k views

If image I change an image from 72dpi to 300dpi, can I scale it up size without losing quality? [duplicate]

Title says it all. When I change my image from 72dpi to 300dpi, the image gets smaller. Can I scale the image back up and print it out at 300dpi without sacrificing quality?
John Doe's user avatar
1 vote
1 answer
433 views

DPI in photos vs DPI in Printers/Scanners [duplicate]

When I look at the properties of a JPEG shot on my Canon 5D MkIII (set to the highest quality settings on the camera), i've noticed that the 'Horizontal/Vertical Resolution is 72 DPI' My only ...
NULLZ's user avatar
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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 ...
LazerSharks's user avatar
3 votes
2 answers
238 views

Is there a way to make a photo look good for the web but not for small prints?

I work at a professional photography studio and was given the task of creating a photograph that would look good on social media websites. At the same time, the image cannot look good for printing of ...
RonnieEXP's user avatar
0 votes
3 answers
455 views

How can a 900X500px image have ~5400 DPI? [duplicate]

Possible Duplicate: Does the dpi number reported by camera in JPG have any meaning? I am investigating on the size and resolution of the photographs posted on the Internet. I have visited many ...
garik's user avatar
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1 vote
3 answers
1k views

Dots per inch calculation [duplicate]

Possible Duplicate: What does DPI mean? I have a hard time understanding the concept of dots per inch. I've looked the wikipedia article and I am still unsure. Say I have a 4"x6" photograph at a ...
pogo's user avatar
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4 votes
2 answers
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Is it possible to print a good quality 72X72" photo from a Nikon D700?

A printing job requires a 72x72" image. I shoot with a D700. Is there any way to get a quality print at that size from a D700?
user11556's user avatar
-1 votes
2 answers
2k views

How to reduce the image resolution to increase ppi?

Having an photo of 4000x3000 resolution with 240ppi. Is it possible get a resolution of 400x300 resolution but with higher ppi?If possible how to do that?
vivek_jonam's user avatar
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1 answer
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Best Digital Scanning techniques - help

I want to scan a paper shown below. Actually I need the photo of the jets taking off, I dont need the entire newspaper. This is what I have - I have to do color scanning, I have a HP scanner which ...
Srikar Appalaraju's user avatar
5 votes
1 answer
21k views

How large an image do I need to print a 32″ by 18″ poster at 300 DPI?

I need to have an image printed as a poster 32″ by 18″ (about 80x45 cm) at 300 DPI, but I am unsure of how big the file must be. Also, what file format is best?
Jakob Weisblat's user avatar
1 vote
5 answers
2k views

How does optimizer software reduce file size without reducing resolution?

There are numerous applications for reducing filesize. Most of them reduce resolution (e.g. from 300dpi to 72dpi) or reduce height and width. I tried http://www.imageoptimizer.net/ Surprisingly, when ...
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