What is DPI and When Does it Matter? (Also DPI vs. PPI)
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- เผยแพร่เมื่อ 12 ส.ค. 2017
- Learn about DPI, and the differences between DPI and PPI
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This video goes over what does DPI mean and when it matters.
DPI, or Dots Per Inch is a printing term that is used to define the print resolution for typically a physically printed item. Think something like a poster or a sign.
PPI or Pixels Per Inch is a digital term for screen resolution at a certain size of screen.
DPI / PPI is often used incorrectly when applied to a pure pixel measurement, so this video dives into the topic and explains the differences.
Have additional questions? Feel free to ask in the comments section!
#design #graphicdesign #dpi
Was this video helpful? Did the difference between the importance of DPI and pixel dimensions make sense? Let me know!
definitely, this is a tough subject to cover because there's a lot of confusion out there. recently had a debate with my creative team and used printouts etc to explain it.
so i came here to learn something else. in the developer options of android 7.0 or higher devices, you can change the "dpi" by dpi, does it just mean ppi? as you said, people use the two interchangeably
zooming in was really awesome and made it memorable :D
@@XenoBaby they are not the same thing and some things will convert them for you. Your dpi I dose matter, mostly in print, its dots per minute used for art printing and by by professional artists and photographers. Most artists will go with a minimum of 300 dpi, most personal artists for with 1200 dpi. I hope this helps as I didn't fin the video very useful when I was trying to to explain it to other. Dpi dose matter.
I still scratch my head. So take RedBubble for example, they print on throwblankets so they want the ppi/dpi to be between 200-300 and size 6000*6000 if I rememebr it correct. so if I take a picture with my phone it is 72dpi and about 3800*2800 size... so if I change the dpi to 250 does the image become smaller??? cant I change the whole thing to 250dpi and 5800*4800?? i still dont get this... can I or cant I change my mobile photos into photos that can be printed on blankets?
Thank you! I found this extremely informative. Very to the point information while covering all of the questions I had.
This video explained things very well. Thanks for sharing.
Thank you so much, this was SUPER helpful!
Why did you need this?
@@transee7912 Why? Well, I work in photoshop a lot, and have been fed lots of misinformation about dpi, causing me to never really understand what it is or what it does or how it affects my files. By now, I understand that for as long as I’m working in digital only, the DPI setting in photoshop doesn’t concern me. I do work in print here and there (probably less often going forward as I’m no longer a student) so understanding how it affects my prints is really helpful. Understanding this concept actually gave me a huge leg up in one of my classes in my senior year.
Thank you! I understand now the difference between ppi and dpi, but i have a question. If I export from Lightroom (raw into jpeg) and choose highest quality (100) and in “Resolution” should I do 300 ppi or which one for printing? What happens if I dont input any amount in “Resolution”? (pictures will be printed on no more than A4 format). The lab told be the pictures will be printed at 2,400 dpi...
Helpful, thank you. Side question, what scanner did you use for that scanned print when you were referring to dpi?
Hey, I have a question. What effect does DPI make to digital art if you have no intention on printing it? Example, is there any difference in drawing with a document that is 1920 x 1080 between DPI being 72 or 300? Also thanks for the awesome video!
All that matters in a pure digital situation are the pixel dimensions. 1920 x 1080 is exactly the same file size if it's at 1ppi or 10,000ppi. :)
Thats great to know, thank you so much!
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This was beautiful
i need a information.sony a7 iii have 921,600 Screen dots.and nikon d7200 have 1,228,800 screen dots.. both camera are 24 megapixels....what the different? if i buy nikon d7200 ,what benefit i can get?
Thank you!
Great explanation 👍🏻
Well done. Incidentally, the antiquated number 72 ppi for estimating on-screen image size is irrelevant today because modern screens have a resolution that is significantly higher than 72 ppi.
Why won't my DPI change to 300. For createspace even when i tried all the DPI changes i even tried changing pixels didnt work help me! I have 2400 and 3000 for my photo with 72 DPI but i changed it to 300 DPI still won't work
Thanks so much for the video. I'm still very green to this and trying to understand how the two translate then if Illustrator will only allow saving at ppi, and a print house is asking for an image at a certain (let's say 300) dpi?
Just give them the Illustrator file assuming you did the work in vector (i.e. using Illustrator's tools). Anything that's vector has technically infinitely high resolution.
Thank you. Now I understand.
THANK YOU.
really helps
When changing the ppi, how do you get it to stay that way? I changed my resolution to 300 ppi and exported it, but when I reopened it, the resolution was lower than my original file.
I am facing problem in uploading my artwork in teepublic..when i try to upload it is not uploading..I think I am lacking 150 dpi...so how to add 150 dpi
great video!
I'm taking a large image and shrinking it down to say 8" by 10" and shrinking it to 2" by 3 ish" and then printing it. I don't want to lose my image quality since it's already rasterized and the words won't be legible. Would making the ppi higher make the prints come out better once they're shrunken down? Also if my printer is 600 x 2400 dpi, do I need to make the ppi higher than 300 to get the best quality image?
I would turn off resampling when you re-size, and shrink it down. That should effectively raise the standard PPI since it isn't resampling it to be smaller (in this case to match current PPI, but when you shrink an image without resampling it effectively raises PPI).
Great Video. I've just started using Affinity Designer for iPad and I see that when one sets up a new document the resolution is set to DPI and not PPI. Based on your video, this is incorrect? I would expect PPI as per Illustrator and Photoshop document setup. What is your opinion?
Generally speaking when working digitally PPI is the correct thing as you might not ever by creating it for physical print runs. I wonder if it's because far more people know what DPI means than PPI, that they just default to the known term. For example it's very common for people to say high quality artwork needs to be 300DPI. In the end that's all irrelevant because what really matters (digitally) is the core pixel dimensions. Not a ton of people work in inches as opposed to pixels, but hey, whatever works. :) I guess when designing t-shirts I actually always did work in inches to match the screen printer's requirements.
Thanks for the reply. Very helpful.
I teach DTP and I've always drummed into my learners that DPI is only relevant for home/office printers that can squeeze dots into smaller spaces for higher fidelity; but not relevant for professional Offset Litho printing because essentially digital PPI is converted to LPI. So I was surprised to see DPI being used. But, as you say, PPI and DPI are used interchangeably anyway and I'm probably being pedantic - but ultimately pixel dimensions is what counts.
Thanks again.
Hey Matt, thanks for the info. I have one question, I have this 3840X2160 @ 300DPI image that I want to print on Metal on a 48X36 inch format. Right now I am trying to figure out how I can achieve the best result. I know a great deal about digital imagery, but nothing on printing. Any idea?
That's a huge surface to print on. Is it something that you can convert into a vector format (illustration, big bold solid lines and colors etc etc), or is it more photographic / highly detailed in nature? I would talk to the printer you want to use directly and ask them what their requirements for a high quality print are.
@@MattBorchert most large format prints actually are printed at 150dpi since they are usually seen from a distance.
Hello Matt! When you zoomed into the painting that you scanned, we saw the painting was printed by CMYK colors. Lots of CYMK dots. But i wonder if CMYK = 4 dots,or CMYK = 1dot?
Each dot is one of those 4 colors. So CMYK (Cyan, Magenta, Yellow, Black). So technically to get all of those colors, you'd need 4 dots of ink. :)
Thank you! SO 300dpi means there [maybe] 40 C dots, 60 M dots, 100 Y dots and 100 K dots in a inch ?
Actually not sure, but I'm guessing that depends on the image and the color used inside it. Or you could have an image that has large patches of white, but overall is still 300dpi because where there are dots, that's the level of fidelity that they have.
Matt Borchert, may i ask you the picture of texture you used for the little picture of this vidéo?? i'm searching this kind of trames/frames since one year x')
the texture behind "DPI?"
It's from the picture of the book I scanned in as shown in the video. This is just that picture at 100%. If you scan in a photo or illustration from a book at a super high resolution and zoom in, you'll get a similar result.
Thank U!
Excellent explanation, ALMOST answers my question. I know my pixel count (16 megapixel camera). It's not, but for simplicity let's say the image is square, 4000x4000 pixels. The jpg file shows 72 dpi in the EXIF data. When I develop the RAW file in Lightroom or ACDSee I have the option to export a jpg file with different dpi. Does it matter? What difference does it make? It seems to me I can take either jpg file (the original 72 dpi jpg from the camera, or a 300 dpi file exported from the RAW software) to a print shop and ask for a printed image any size I want - say 10x10 inches or 40x40 inches. Seems to me regardless of the EXIF dpi of either file, the dpi of the 10x10 print will be 400 and the dpi of the 40x40 print will be 100. So specifying the dpi of a file to be printed is just as irrelevant and redundant as uploading, as you explained, assuming that the quality/resolution of the output is satisfactory for viewing at the intended distance. Am I right?
Yeah the size of the file at source quality is the size of the file. If you want to convert it for the print shop to be 10" x 10" at 400dpi or whatever they request, I'd suggest doing that to save them any confusion. Just make sure if you adjust the DPI of the image, that you don't re-sample the image to make it artificially larger or smaller as that might cause some visual distortion.
Thanks Matt. I got some similar comment from others, along with a LOT of confusion and misinformation and just plain misunderstanding of my question. So far none of several print shops has asked me "what dpi" nor told me their required or preferred dpi, they just ask "what size".
Hey Matt, really good explanation, just one thing missing for me: so, DPI and PPI are proportionally the same? This is, 1 pixel in a digital image will be equivalent to 1 dot when the image is printed?
No, the printers resolution will likely be different from your monitors. So the print resolution is highly likely to be different from the pixels on your screen.
You are correct. However, the addition of 72 dpi is probably included for beginners in Photoshop who will be confronted by the image size dialog box and will need to have some sort of number to enter or they will be constantly contacting Society 6 for an answer. Also, it is so much easier and faster to say this than watch an excellent, but 13 minute long, video. Along with that it gives the artist an immediate reference to the final printed size at a specific resolution which they cannot immediately envision on an item using the file they are providing. Yes, propeller heads like us completely understand what you are saying, but newbies don't. It's very much like avoiding the confusing math involved in checking line screen against dpi and then actual printed size for print pieces. It is much easier to say "use 300 dpi EFFECTIVE dpi for magazines in InDesign."
I'm going to buy the ipad 8 and I see it has 264 ppi, seems to be horrible!
Will I get problem with it? What fo u think?
I understand the difference, its pretty simple, the one is for print the other one is for digital images. But i thought PPI of 72 is all i need in digital, so why would i go to 300?
PPI only matters when you're dealing with a size requirement in inches and you need the proper resolution for it.
For example: a 2015, 15 inch Macbook Pro Retina has a PPI of 220, not 72.
A Google Pixel XL (my phone) has a resolution of about 534 PPI.
The only time the PPI resolution matters is when you know the size of the screen. Then the PPI will tell you how many pixels in width and height are required to fill that screen at full resolution.
thank you
I have a poster I want to design, will changing this make the print smaller on poster?
So lets say i want ro resize a phone picture with 72 dpi, to a really small size for printing, lets say 5cm by 5cm, to preserve quality sould i increse dpi to 300 ?
Absolutely 😊
If I have a 1080x1350px image at 72ppi and changed the ppi to 300 without resampling, would the quality be better or does it not change anything?
It will have no impact on quality.
@@MattBorchert ok got it
I wanted to make a name board design.
Size: 20ft * 2.5ft
What is the resolution(dpi) should i use?
That's huge, I would talk to the printing company about what they want for formats. Ideally you could just draw it in vector so it can be infinitely scalable, but if you're working with photos etc that won't be an option.
I would get swatches colour bar like you
The real question here is does it change the quality of the image by changing the ppi?
Not unless you're resampling the image, but you can only make the quality go down by doing that (unless it's vector and you can enlarge without losing quality). The source material is all that matters.
are dot and pixels same ?
When someone says, "This gaming mouse goes up to 20,000 DPI," what does that mean?
The higher the DPI the sensor on a mouse has, the more sensitive it can be to movement.
Matt Borchert oh than makes a lot more sense thanks
it's not even how sensitive it is in sense of accuracy but how fast it moves in an inch... anything over like 3000 is barely usable without slowing the mouse though software preferences.... most people are used to 800-1800 dpi range... overall it's a purely a marketing point
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I'm alive, I swear! :)
Matt Borchert ARE YOU GOING TO KEEP UPLOADING OR DO I NEED TO UNSUBSCRIBE???
I'LL KEEP UPLOADING AT SOME POINT THIS YEAR, BUT YOUR LETTERS ARE BIG AND SCARY.
Also if there is something in particular you'd like to see, let me know. :)
Matt Borchert DON'T WORRY ABOUT THE WAY I TYPE PAL... AND NOTHING SPECIAL, AS LONG AS IF IT'S PHOTOSHOP, ILLUSTRATOR, AFTER EFFECTS OR PREMIER PRO... JUST KEEP UPLOADING!!!
he did the funny
you sounds like chocotaco
pp
Did he repeat himself at the end?
Not worth Watching