How To Change Dpi In Photoshop?

How to change DPI on Photoshop. – It’s easy to change and customise DPI resolution using Photoshop, Just follow these instructions:

1. Launch Adobe Photoshop on your laptop or computer.
2. Navigate to File > Open and select your image.
3. With your image open, click Image > Image Size,
4. Here, you can adjust the Resolution, Image Size in Width and Height and Dimensions to your liking.

If you don’t want to change the pixel dimensions of your image, make sure to deselect Resample while you use these tools. Resampling can add additional pixels to your image artificially, which can degrade image quality and make it look worse than before.

How can I check DPI in Photoshop?

Open a picture in Photoshop. Click the ‘Image’ menu and choose ‘Image Size.’ Choose ‘pixels/inch’ from the Resolution drop-down menu if it is not already displayed by default. The number in the Resolution box is the DPI of the photo.

Is 300 DPI really necessary?

DPI For Print – First and foremost, when preparing a layout, you’ll need to know the finished size of your image, in inches. In addition, you’ll have to confirm that it’s at 300 DPI. These days images shot with a smartphone are usually high resolution, large in size, and normally don’t pose a problem for your print project. Per the chart above, a 5″ x 5″ image has to have a resolution of 1500 x 1500 to be suitable for print. If the resolution is higher or lower, you’ll have to make some decisions. If your resolution is 3000 x 3000 and the size is 5″ x 5″, you can resize it to 1500 x 1500. This would reduce the overall file size, which could be an advantage if you’re sending it via email. Alternatively if your image is 5″ x 5″ and the resolution is at 1200 x 1200, your DPI is too low. You’ll either have to change your layout to accommodate a smaller 4″ x 4″ image size, to meet the 300 DPI criteria, or use another image. The chart above assumes a square image. If it’s not a square and you have a 1920 x 1080 image, divide by 300 to get the size, i.e.1920/300 = 6.4 inches and 1080/300 = 3.6″. Your final image size would be 6.4″ x 3.6″. Download is a free open source tool that enables you to edit images. For those of you who can’t afford Photoshop, it’s a great alternative solution. Open your image in, Then go to > Image > Scale Image. Another dialog box will appear with a drop down option for image size. The option at the top gives you the image size. Select “in” (inches) from the dropdown. The second set of metrics gives you the DPI/PPI. Notice that 300 PPI is shown in the X resolution & Y resolution boxes. In this case, GIMP isn’t calling it DPI and doesn’t distinguish between the two. Also don’t get hung up on the fact that the term resolution is being used with PPI. Just know when you view your image size in inches, the X & Y resolution needs to be 300 PPI. In this example, the image size is only 1″ x,56″ and may be too small for a layout. The solution is NOT to scale the size up (in inches), but to get a larger image. If you scale the size up, your DPI will no longer be 300. Play with the numbers and see for yourself. If you change the PPI setting to 72.000 on both the X and Y resolution, you’ll notice that the size of your image increases. This may be the size (in inches) you want in your layout, but the DPI/PPI is not 300. Remember when resizing images if your image is too small to begin with, changing a 72 PPI image to 300 PPI won’t make it the correct resolution for print.

To learn more about how to use, go here: Also, there are plenty of tutorials on YouTube that will show you how to use the program.Whether your print project is a, piece, or a poster, a high quality image at 300 DPI is A MUST!

One final note, if you have a Mac and want to download GIMP, you’ll get a message stating that the program is not from the App Store or an identified developer. Go to System Preferences > General > unlock the lock using your password, and then click “Open The Program Anyway”. : DPI vs PPI, Understanding DPI For Print

How do I resize an image in DPI?

How to Change the DPI in Photoshop – To change an image’s DPI in Photoshop, go to Image > Image Size, Uncheck Resample Image, because this setting will upscale your image, which will make it lower quality. Now, next to Resolution, type in your preferred resolution, set as Pixels/Inch, Notice how the Width and Height figures change, too. This shows you the size your image will print. You can, of course, specify the width and height instead, in inches or centimeters. If you do this, just make sure your DPI doesn’t drop too low to degrade the quality. That can happen if your image is small.

Will 72 DPI print OK?

Images used on the internet are typically 72 dpi. This is a suitable resolution for websites since it enables a small file size and does not look visibly pixelated on most computer screens. However, images at 72 dpi will ALWAYS look pixelated and low-resolution when printed.

Why does Photoshop only export 72 DPI?

It is because you use Export. Export is for web use and DOES NOT SET PPI. This will be shown as a default, depending on the app, often 90 ppi or 72 ppi. If you are working for print, you MUST use Save a copy or Save as to preserve the ppi. If you are working for web use, the ppi is not relevant, though many web sites are written by confused people who don’t understand, and claim it matters.

Why does Photoshop default to 72 DPI?

“}”> JohnS2 • Junior Member • Posts: 35 Photoshop defaults to 72ppi, why? Aug 28, 2002 I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John “}”> Use Corel PhotoPaint instead. In reply to JohnS2 • Aug 28, 2002 This doesn’t really answer your question, but I can recommend that you use Corel’s PhotoPaint instead. It does everything that Photoshop does with a MUCH easier-to-use interface, and it doesn’t take a degree in rocket science to figure out how to save pictures without resampling/resizing them. – hide signature – Patrick Martin http://www.patrickmartin.com P.S. The number of pixels in the image is completely independent of the resolution. The resolution just controls how far those pixels are spread in a print-out. In Photoshop, you want to make sure that you never choose the “resample” option when saving or resizing photos. That’s what is causing Photoshop to change the number of pixels in your image. “}”> Phil Sexton • Contributing Member • Posts: 543 Files do not come from the camera at 300ppi. In reply to JohnS2 • Aug 28, 2002 They come at 3000×2000 pixels and YOU decide, through software, how large the image size will be in the final print. You must learn enough about whichever software you use to assure that you do not inadvertently lose information from your files. A practice that I have always found useful is to keep a copy of the original file. Then, no matter what your software does you can always start from scratch. “}”> MissMouse • Senior Member • Posts: 1,797 Re: Files do not come from the camera at 300ppi. Phil Sexton wrote: They come at 3000×2000 pixels and YOU decide, through software, how large the image size will be in the final print. You must learn enough about whichever software you use to assure that you do not inadvertently lose information from your files. A practice that I have always found useful is to keep a copy of the original file. Then, no matter what your software does you can always start from scratch. PhotoShop 5 and 7 do not do this by default. When you modify and image and save it with photoshop it will save it like you set in the image size. The save option in jpeg may ask you what quality jpeg you want if you don’t use 12 it will compress the image more making the file size smaller. Remember every time you save using jpeg you will loose some quality. Always keep the original from the camera its your digital nagative. – JJMack “}”> Trimoon • Senior Member • Posts: 1,275 Re: Photoshop defaults to 72ppi, why? In reply to JohnS2 • Aug 28, 2002 If you use the crop tool it can resample the image size, Resampling refers to changing the pixel dimensions. To resample the image during cropping, enter a height, width, and/or resolution in the options bar. You may have it set at 72 dpi “}”> Re: Photoshop defaults to 72ppi, why? In reply to JohnS2 • Aug 28, 2002 Photoshop does NOT default to 72 dpi. You cropped or resampled the image, perhaps inadvertently, – or you saved it as a GIF and then read it back – and that set dpi to 72. dpi value is saved or retained in TIF, JPEG, BMP, or TIF files. If you save a file with a certain dpu value, that value will be read back when you open the same file later. GIF file format, however, does not do this. If you save a file with 300 or 3000 dpi, when you read this file back it will appear to have dpi value of 72. But in any case, the important thing is the number of pixels in the image – and that of course will not change by being saved and then read back, no matter what format you use. The dpi setting only specifies how big each of those pixels gets printed. DPI has no meaning except when printing. You can change dpi value to any number you like – without affecting pixels or quality of your image – by doing “Image / Image size.” command WITHOUT checkmark next to “resample image” box, in other wortds, with NO RESAMPLING. So don’t get hung up or fixated on what the dpi value is. It has no bearing on image quality – only the number of pixels determine quality. -bruce JohnS2 wrote: I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John “}”> Trimoon • Senior Member • Posts: 1,275 Re: Photoshop defaults to 72ppi, why? In reply to Trimoon • Aug 28, 2002 Trimoon wrote: If you use the crop tool it can resample the image size, Resampling refers to changing the pixel dimensions. To resample the image during cropping, enter a height, width, and/or resolution in the options bar. You may have it set at 72 dpi BTW Corel’s PhotoPaint cant do ½ the things photoshop can. “}”> OP JohnS2 • Junior Member • Posts: 35 Re: Photoshop defaults to 72ppi, why? Thanks all for the repliies. I ran a test last night to see what would happen if I simply opened an image and then “Saved a Copy”. Immediately after opening the photo, I went to Image~Image Size and found that the ppi was set to 72 and the print size was something like 42″x something. So I saved the copy and then compared the files size and the file properties to the original. Here’s what I found Original Copy pixels 3008×2000 same ppi 300 72 file size 2.8MB 1.1MB I got this info from Win2K by doing a Properties on the two files. So unless there is a photoshop setting I am unaware of, I would suggest that it is “defaulting” to 72ppi. However based on this thread it sounds as if the fact that it is set to 72ppi will not impact my printout. thanks, John bruce komusin wrote: Photoshop does NOT default to 72 dpi. You cropped or resampled the image, perhaps inadvertently, – or you saved it as a GIF and then read it back – and that set dpi to 72. dpi value is saved or retained in TIF, JPEG, BMP, or TIF files. If you save a file with a certain dpu value, that value will be read back when you open the same file later. GIF file format, however, does not do this. If you save a file with 300 or 3000 dpi, when you read this file back it will appear to have dpi value of 72. But in any case, the important thing is the number of pixels in the image – and that of course will not change by being saved and then read back, no matter what format you use. The dpi setting only specifies how big each of those pixels gets printed. DPI has no meaning except when printing. You can change dpi value to any number you like – without affecting pixels or quality of your image – by doing “Image / Image size.” command WITHOUT checkmark next to “resample image” box, in other wortds, with NO RESAMPLING. So don’t get hung up or fixated on what the dpi value is. It has no bearing on image quality – only the number of pixels determine quality. -bruce JohnS2 wrote: I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John “}”> cal516 • Contributing Member • Posts: 929 Same Characteristic in PSE v2.0 In reply to JohnS2 • Aug 28, 2002 PSE v2.0 appears to behave exactly the same. Merely opening the image resize dialogue sets the save parameter to 72ppi – it appears to be the default value when that function is called. If you execute a save after opening the resize dialogue, even if you did not resize, you get 72ppi and a reduced file size. My resize dialogue also has resampling checked as the default selection on opening the dialogue. – hide signature -, Cal Severna Park, Maryland (pbase supporter) “}”> Try In reply to cal516 • Aug 28, 2002 Uncheck ‘resample image’ and set the resolution to 300. Mathias cal516 wrote: PSE v2.0 appears to behave exactly the same. Merely opening the image resize dialogue sets the save parameter to 72ppi – it appears to be the default value when that function is called. If you execute a save after opening the resize dialogue, even if you did not resize, you get 72ppi and a reduced file size. My resize dialogue also has resampling checked as the default selection on opening the dialogue. “}”> BillDrew • Senior Member • Posts: 1,869 Re: Photoshop defaults to 72ppi, why? In reply to JohnS2 • Aug 28, 2002 The total number of pixels is the same (3008×2000) in both cases. As bruce (and others) have noted, ppi/dpi is an irrelevant number until the picture is sent to the printer. The difference in file size is likely due to your having used a low JPEG quality number – that will indeed lose image quality and make the file smaller. Try some tests with saving the image with different JPEG compressions. Just use the “Save as” instead of “save copy”. Likely you will be able to get files that are larger (not better) than your original doing that as well as smaller (not as good) than your original. JohnS2 wrote: Thanks all for the repliies. I ran a test last night to see what would happen if I simply opened an image and then “Saved a Copy”. Immediately after opening the photo, I went to Image~Image Size and found that the ppi was set to 72 and the print size was something like 42″x something. So I saved the copy and then compared the files size and the file properties to the original. Here’s what I found Original Copy pixels 3008×2000 same ppi 300 72 file size 2.8MB 1.1MB I got this info from Win2K by doing a Properties on the two files. So unless there is a photoshop setting I am unaware of, I would suggest that it is “defaulting” to 72ppi. However based on this thread it sounds as if the fact that it is set to 72ppi will not impact my printout. thanks, John bruce komusin wrote: Photoshop does NOT default to 72 dpi. You cropped or resampled the image, perhaps inadvertently, – or you saved it as a GIF and then read it back – and that set dpi to 72. dpi value is saved or retained in TIF, JPEG, BMP, or TIF files. If you save a file with a certain dpu value, that value will be read back when you open the same file later. GIF file format, however, does not do this. If you save a file with 300 or 3000 dpi, when you read this file back it will appear to have dpi value of 72. But in any case, the important thing is the number of pixels in the image – and that of course will not change by being saved and then read back, no matter what format you use. The dpi setting only specifies how big each of those pixels gets printed. DPI has no meaning except when printing. You can change dpi value to any number you like – without affecting pixels or quality of your image – by doing “Image / Image size.” command WITHOUT checkmark next to “resample image” box, in other wortds, with NO RESAMPLING. So don’t get hung up or fixated on what the dpi value is. It has no bearing on image quality – only the number of pixels determine quality. (Amount of JPEG compression also determines quality. I suspect that is where his size difference is coming from. No idea why/how the dpi is changing.) -bruce JohnS2 wrote: I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John “}”> OP JohnS2 • Junior Member • Posts: 35 Re: Photoshop defaults to 72ppi, why? In reply to BillDrew • Aug 28, 2002 Good point about the JPEG quality. I am using Maximum(8) even thought it goes up to Maximum(10). When I set it to 10, it tends to roughly double the size of the file. I’ve never tried Maximum(9) for some reason I can’t explain. One last question if I might. I’m still clearly struggling to comprehend ppi vs print size vs. ganularity so. If I have a picture that is 72ppi/42×27 and the same picture that is 300ppi/10×9 (I think that’s what it converts to) and I print them both at 4×6, should I see a difference in the output given the paper & other print settings are exactly the same? If they are the same is that because I printed the smaller than their print size so the got compressed? thanks, John Bill Drew wrote: The total number of pixels is the same (3008×2000) in both cases. As bruce (and others) have noted, ppi/dpi is an irrelevant number until the picture is sent to the printer. The difference in file size is likely due to your having used a low JPEG quality number – that will indeed lose image quality and make the file smaller. Try some tests with saving the image with different JPEG compressions. Just use the “Save as” instead of “save copy”. Likely you will be able to get files that are larger (not better) than your original doing that as well as smaller (not as good) than your original. JohnS2 wrote: Thanks all for the repliies. I ran a test last night to see what would happen if I simply opened an image and then “Saved a Copy”. Immediately after opening the photo, I went to Image~Image Size and found that the ppi was set to 72 and the print size was something like 42″x something. So I saved the copy and then compared the files size and the file properties to the original. Here’s what I found Original Copy pixels 3008×2000 same ppi 300 72 file size 2.8MB 1.1MB I got this info from Win2K by doing a Properties on the two files. So unless there is a photoshop setting I am unaware of, I would suggest that it is “defaulting” to 72ppi. However based on this thread it sounds as if the fact that it is set to 72ppi will not impact my printout. thanks, John bruce komusin wrote: Photoshop does NOT default to 72 dpi. You cropped or resampled the image, perhaps inadvertently, – or you saved it as a GIF and then read it back – and that set dpi to 72. dpi value is saved or retained in TIF, JPEG, BMP, or TIF files. If you save a file with a certain dpu value, that value will be read back when you open the same file later. GIF file format, however, does not do this. If you save a file with 300 or 3000 dpi, when you read this file back it will appear to have dpi value of 72. But in any case, the important thing is the number of pixels in the image – and that of course will not change by being saved and then read back, no matter what format you use. The dpi setting only specifies how big each of those pixels gets printed. DPI has no meaning except when printing. You can change dpi value to any number you like – without affecting pixels or quality of your image – by doing “Image / Image size.” command WITHOUT checkmark next to “resample image” box, in other wortds, with NO RESAMPLING. So don’t get hung up or fixated on what the dpi value is. It has no bearing on image quality – only the number of pixels determine quality. (Amount of JPEG compression also determines quality. I suspect that is where his size difference is coming from. No idea why/how the dpi is changing.) -bruce JohnS2 wrote: I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John “}”> DeeDee G. • Veteran Member • Posts: 4,708 Re: Photoshop defaults to 72ppi, why? In reply to JohnS2 • Aug 28, 2002 Hi John, If you look at the Image Info, you should see that it has 3000 Width and 2000 height for the pixel info. It is at 72dpi but it shows a print size of at least 35 x 26. If you uncheck resample, and then change the dpi to 300, you will see the print size shrink down considerably. This is the actual pixel size. This will most likely shrink down to about 8 x 10 when the pixels are at 300dpi instead of 72dpi. If you want to print something larger than that with 300dpi, you can click on “resample” and “bicubic” and photoshop will fill in the picture with extra pixels to obtain a better quality image. I just brought over an untouched Sony F707 picture from my memory stick into “my Documents.” It came in at 2.04mb. I just opened the picture and saved as gave it a name and did the 12 quality jpeg in Photoshop 7.0 and it is showing as 2.755mb. I did no other changes to it. The file info is there and then some (??). LOL I am not sure where the extra kbs came from. Hope that helps.D. JohnS2 wrote: I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John “}”> Gary Grundy • Contributing Member • Posts: 969 Re: Photoshop defaults to 72ppi, why? 72dpi is the proper setting for monitor viewing. This needs to be increased to print to 240 up to about 300. If you aren’t resampleing then increasing dpi will decrease print size – usually what you want to do anyway. This doesn’t change the number of pixels in total. If you resample or save in jpg you do some changing of the resolution. You need a copy of the original and the processed copies for web viewing,jpg (72dpi)/ printing size.psd(240-300dpi). DO NOT EDit YOUR ORIGINAL! Make a copy for processing. Regards Gary Sony Alpha DSLR-A100 Sony SLT-A77 Sony DT 11-18mm F4.5-5.6 Sony DT 18-200mm F3.5-6.3 Sony 70-300mm F4.5-5.6 G SSM +1 more “}”> Re: Photoshop defaults to 72ppi, why? In reply to JohnS2 • Aug 30, 2002 You have a camera that outputs images that are 3008 x 2000 pixels? Those are very strange values. You say Windows 2000 can tell you the dpi of a jpg file? I don’t think so, I think it tells only the file size in bytes, the date, and other general file info but no dpi. But let that pass. I really do not understand how you can say your original is 300 dpi when you also said you simply opened an image and immediately after opening, it was shown to be 72 dpi in the “image / image size” dialog. If it said 72 then it was 72. Photoshop did not set it to 72 dpi, it came in from the camera as 72 dpi. It is very common for camera to save jpg file with the “dummy” value of 72 placed into the dpi slot in the jpg file. SOME NUMBER HAS TO BE THERE. The camera in fact has no meaningful dpi value – or, if you must know, the true dpi of the camera is calculated by dividing the number of dots it produces (3008 horizontal) by the size of the CCD sensor (probably about 0.25 inches square) so the camera’s true dpi is about 12032. But that would be too confusing to people. Everyone would be asking “why is my jpeg 12032 dpi, and why is it only 0.25 inches wide? So the camera manufacturers are the ones that simply set dpi in their jpg files to a dummy value of 72 – for no very good reason except it yields a reasonable size printout if you do not change the dpi. -bruce JohnS2 wrote: Thanks all for the repliies. I ran a test last night to see what would happen if I simply opened an image and then “Saved a Copy”. Immediately after opening the photo, I went to Image~Image Size and found that the ppi was set to 72 and the print size was something like 42″x something. So I saved the copy and then compared the files size and the file properties to the original. Here’s what I found Original Copy pixels 3008×2000 same ppi 300 72 file size 2.8MB 1.1MB I got this info from Win2K by doing a Properties on the two files. So unless there is a photoshop setting I am unaware of, I would suggest that it is “defaulting” to 72ppi. However based on this thread it sounds as if the fact that it is set to 72ppi will not impact my printout. thanks, John “}”> Re: Photoshop defaults to 72ppi, why? Gary wrote: 72dpi is the proper setting for monitor viewing. copies for web viewing,jpg (72dpi)/ Gary, I know you mean well, but read the other posts here. PPI is irrelevant for monitor use / web. For monitor use, it doesn´t matter what the resolution is, because the image will always display at the monitors resolution (which is, BTW, only 72ppi per standard in very old Mac monitors). Now, the only time resolution and monitors correlate could be when trying to view something at ‘print size’ on the monitor (in photoshop for example). You´ll most likely notice that the ‘print size’ is never really the print size, because Photoshop is not able to determine your monitors resolution by itself, and thus assumes this old 72ppi nonsense (forget about 72ppi!). Mathias “}”> esowden • New Member • Posts: 9 Re: Photoshop defaults to 72ppi, why? According to my Photoshop Elements 2.0 manual – the 72dpi is monitor resolution only. Print resolution is 300dpi unless set otherwise. I’m not sure how PS 6.0 or 7.0 are setup but I’d be willing to bet it would be similar. Mathias Vejerslev wrote: Gary wrote: 72dpi is the proper setting for monitor viewing. copies for web viewing,jpg (72dpi)/ Gary, I know you mean well, but read the other posts here. PPI is irrelevant for monitor use / web. For monitor use, it doesn´t matter what the resolution is, because the image will always display at the monitors resolution (which is, BTW, only 72ppi per standard in very old Mac monitors). Now, the only time resolution and monitors correlate could be when trying to view something at ‘print size’ on the monitor (in photoshop for example). You´ll most likely notice that the ‘print size’ is never really the print size, because Photoshop is not able to determine your monitors resolution by itself, and thus assumes this old 72ppi nonsense (forget about 72ppi!). Mathias “}”> Re: Photoshop defaults to 72ppi, why? Hi D. The change to the file size (bigger) is because the file you opened from the camera was already compressed by the camera into a JPG. When you open it in Photoshop it is uncompressed and becomes quite large. When you resaved at a setting of 12 Photoshop recompressed the image using a different compression ratio (less compression) than the one your camera originally used, the result is a bigger file than the original. DeeDee G. wrote: Hi John, If you look at the Image Info, you should see that it has 3000 Width and 2000 height for the pixel info. It is at 72dpi but it shows a print size of at least 35 x 26. If you uncheck resample, and then change the dpi to 300, you will see the print size shrink down considerably. This is the actual pixel size. This will most likely shrink down to about 8 x 10 when the pixels are at 300dpi instead of 72dpi. If you want to print something larger than that with 300dpi, you can click on “resample” and “bicubic” and photoshop will fill in the picture with extra pixels to obtain a better quality image. I just brought over an untouched Sony F707 picture from my memory stick into “my Documents.” It came in at 2.04mb. I just opened the picture and saved as gave it a name and did the 12 quality jpeg in Photoshop 7.0 and it is showing as 2.755mb. I did no other changes to it. The file info is there and then some (??). LOL I am not sure where the extra kbs came from. Hope that helps.D. JohnS2 wrote: I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John “}”> DeeDee G. • Veteran Member • Posts: 4,708 Thanks Bruce! That makes a lot of sense! Thanks again! DeeDee G. Bruce Kolber wrote: Hi D. The change to the file size (bigger) is because the file you opened from the camera was already compressed by the camera into a JPG. When you open it in Photoshop it is uncompressed and becomes quite large. When you resaved at a setting of 12 Photoshop recompressed the image using a different compression ratio (less compression) than the one your camera originally used, the result is a bigger file than the original. DeeDee G. wrote: Hi John, If you look at the Image Info, you should see that it has 3000 Width and 2000 height for the pixel info. It is at 72dpi but it shows a print size of at least 35 x 26. If you uncheck resample, and then change the dpi to 300, you will see the print size shrink down considerably. This is the actual pixel size. This will most likely shrink down to about 8 x 10 when the pixels are at 300dpi instead of 72dpi. If you want to print something larger than that with 300dpi, you can click on “resample” and “bicubic” and photoshop will fill in the picture with extra pixels to obtain a better quality image. I just brought over an untouched Sony F707 picture from my memory stick into “my Documents.” It came in at 2.04mb. I just opened the picture and saved as gave it a name and did the 12 quality jpeg in Photoshop 7.0 and it is showing as 2.755mb. I did no other changes to it. The file info is there and then some (??). LOL I am not sure where the extra kbs came from. Hope that helps.D. JohnS2 wrote: I have just edited some photos that are 3000×2000 (6MP) and 300ppi out of the camera. All I did was do some color adjust and saved the file again. Before I realized it, Photoshop had changed my 300ppi file to 72ppi and halved the file size. When I printed this file I noticed that it appeared grainy. It wasn’t until I went back and looked at the properties that I realized that Photoshop had adjusted the file. Can someone tell me why it does this? Can I stop it from “downsizing” my files? Am I right in believing that this has an impact on the apparent grain on the printed image? I read JJMack’s explanation of DPI vs. PPI and the Photoshop Image Size dialog. What I don’t understand however is why the photo starts at 2.5MB and 300ppi and even if all I do is open in Photoshop and save it becomes 1.1MB and 72ppi. Shouldn’t Photoshop try to maintain the original ppi as well as the resolution? Also when I try to change the ppi back to 300 it either blows the file to 300MB or reduces the print size to 10″x6″ but maintains the resolution. thanks, John

Why is my camera shooting at 72 DPI?

The pictures have a 72 Dots Per Inch (DPI) or Pixels Per Inch (PPI) rating when viewed with photo software. Article ID : 00025226 / Last Modified : 08/21/2019 By default, some photo software may display pictures as having a rating. This is a print setting assigned to the pictures by the software; it is not associated with how the camera takes the pictures.

1. The software will normally allow the DPI or PPI settings to be changed if desired.
2. IMPORTANT: If necessary, refer to the Help section of the software for information about adjusting DPI or PPI settings.
3. NOTE: Some professional print services request that pictures must be at least 300 DPI before they can be printed; what they normally mean is PPI, not DPI.

The resolution or quality of digital photos is primarily determined by the image size (640×480, 1600×1200, and so forth) used by the camera. Most digital cameras have an image size setting in the menu. For the best picture quality, use the highest image size setting available when taking pictures. : The pictures have a 72 Dots Per Inch (DPI) or Pixels Per Inch (PPI) rating when viewed with photo software.