72 dpi versus 300 dpi???

I've always been a bit confused about photos and dpi. I'm working with a Canon G10 (RAW), am not quite sure what the dpi is (my Photoshop recently corrupted itself and I have to yet to solve the problem, or find the original disks). But I'm pretty sure it's NOT 300 dpi. (I'm wondering if there is some other app I might have that will give me the dpi? - My 'GraphicConverter doesn't seem to like the Canon RAW files).
My experience in the past - using stills drawn from SD or HD video - was that if I bumped the image to 300 dpi in Photoshop I got a much better final print (than if I left it in 72 dpi).
I want to publish some photo books through the Aperture\Apple setup, but would like to get the best quality possible in the final output -- would like to know if I should alter the dpi before completing the book in Aperture. Any suggestions would be most appreciated.
Ben

Ben,
You might want to read the discussion at:
http://discussions.apple.com/thread.jspa?messageID=9868789&#9868789
Now having presented all that, when you then proceed to do a book, then you are needing to consider the print size, and maintaining an adequate PPI to get good reproduction. But, even though I have not done a book, if your master images are the type from modern, high resolution cameras, then Aperture will fit the images into the book, and maintain the pixel dimension and ppi necessary for that.
For stills from a video, you should export one as JPEG at original size, and then with Graphic Converter check what the resolution is when, without resampling, the image size is changed to approximate what will be on the page in the book.
Ernie

Similar Messages

If exporting images for backup, to reimport into a clean aperture or other program, is it best to use 72 dpi or 300 dpi, or does it matter?

If exporting images for backup, to reimport into a clean aperture or other program, is it better to use 72 dpi or 300 dpi, or does it matter? I want the best quality for any future unforeseen use.

I am somewhat reluctant to answer your questions after Frank Caggiano's excellent advice, but I really do not like to leave the question open, for there will be many occasions when you will need to export images and to understand how it works.
But please, follow Frank's advice, right now you do not need to worry about pixels and dpi. That is exactly what I meant, when I suggested to you to make sure you keep a copy of your Aperture Library and to back it up with all your other data, before you erase your disk for a clean reinstall.
DPI revisited:
So, is the dpi setting only for exporting to print?
The dpi settings are necessary to define the size of a digital image, since pixels don't have any dimensions. And since you cannot print or display an image without knowing its width and height, you will need to specify dpi when you are printing or scanning.
If I leave it at the default 72dpi will there be any problems getting quality prints in the future from jpeg versions exported with that setting?
Not if you export with the original size - the maximum number of pixels available. That will ensure the maximum print quality.
The dpi settings are required to export versions; versions are derived from the masters and new image files are computed. When you export masters you get a copy of the original file that already may have a dpi setting.
If I choose "export masters", will aperture will export my masters just as they are?
yes, and you may add IPICT data if you choose
Pardon my thick skull--I'm an old dog trying to learn new tricks in this digital world!
No apologies necessary, we were all beginners once
Here is another example, maybe that helps a little:
I exported an image (jpeg) with three different setting: export masters, a version with 72dpi, a version with 300dpi and inspected the files in Graphic Converter:
The master was exported like this:
Notice, the master had already dpi settings, although I did not specify any on export.
The size is 51,48 cm x 38,61 cm.
The 72 dpi Version has larger dimensions, but also 10 Megapixels.
and here the 300 dpi version: smaller dimensions, same amount of pixels.

Changing 72 dpi to 300 dpi

I purchased a stock photo and it's size was 72 dpi. Is it safe to change a file from 72 dpi to 300 dpi? What should I be concerned with when I do this? Any recommendations.
Also, If I change it from 72 to 300 should I make it smaller?
Thanks

open file
image> image size (copy Width as noted in screenshot)
type in targe resolution in Resolution
go back to Width, paste in original number
notice your file (pixel dimensions) MB did not change (only the resolution)...this is one of the few moves you can make in Photoshop without degrading your pixel information (another one in image rotation)

How to increase UIImage DPI taken from iPad Mini from 72 DPI to 300 DPI for OCR Scanning?

We are trying to get an accurate ocr scanning for MRZ using tesseract libraries. However we are getting incorrect results specially with character M (which usually comes out as H).
As going thru numerous blogs, the suggestion is to have a higher DPI image (300 dpi), but the image captured by IPAD Mini is only 72dpi. Can increasing the resolution provide better result. In which case, help in conversion to 300dpi will be greatly appreciated.
Is there an alternate solution for this issue that we are facing.

You are in the Using iPhone forum. I will ask the hosts to move this to the iPad forum. However, I'm not aware of any setting change you can make to the cameras in the iPad or iPhone.

Aperture 3.6 Uploads to Flickr only at 72 dpi, not 300 dpi. Why?

Yesterday I upgraded to the new retina iMac (Yosemite 10.10) and updated Aperture to 3.6. (Previous iMac had not been updated with Yosemite.)
With previous setup, I was uploading to Flickr albums at 300 dpi.
With new setup, photos upload at 72 dpi, including files that previously uploaded at 300 dpi.
I've tried Preferences > Export > External Editor File Format > 300 dpi.
I've also done Presets > Image Exports > changed all formats/sizes to 300 dpi.
FWIW, I can export from Aperture into Lightroom and upload to Flickr from there at 240 dpi.
My question:
What setting am I missing in Aperture 3.6 so that photos upload to Flickr albums at 300 dpi again?

You should look at this thread Problem with Aperture 3.6 preset exports.
Seems Aperture has changed something since 3.6 that might be causing what you are seeing. The way Aperture is setting the JFIF x and y density settings has changed and they do not reflect the true DPI set on the file.
Don;t know if Flickr looks at those, something to keep in mind.
regards
<edit>
FWIW, I can export from Aperture into Lightroom and upload to Flickr from there at 240 dpi.
did you change the dpi setting in Lightroom? You should look the the image in Preview BEFORE you import into Lightroom. Look at the JFIF settings. Then look again AFTER you export from Lightroom. Did the JFIF settings change?

Photoshop document changes to 72 dpi from 300 dpi when receiver opens it.

I created an ad for the newspaper at 300 dpi. I emailed it and received a call it was at a low res of 72. I know I created it and saved it properly. I researched and found I should uncheck the resampling box when saving the document. I did that and resent, same issue.
I have recreated the ad over 20 times and sent it all with the same issue. I just hung up from Adobe after spending over an hour on the phone with them, having them take over my computer, e-mail it himself after creating his own 300 dpi document and the same result. Basically, Adobe is telling me it isn't their problem, it is my server. I sent it from Yahoo and Microsoft and still 72. Even sending as Tif, 72 dpi.
I am at a loss. I don't know what else to try and this ad needs to be in the newspaper in 2 days.
Does anyone have a suggestion? I'm desperate.
Thanks,
Mary

It is very usual for many applications (such as the receiving party must have) to open JPEGs at 72 ppi by default but without resampling, i.e. maintaining the exact number of pixels, so many pixel wide by so many pixels high.
It is then a trivial matter for the recipient to change it back to 300 ppi without resampling to go back to your original.
Incidentally, it's ppi not dpi.
The fact that you say the resolution and the size (pixel dimensions, or so many pixels wide by so many pixels high) does change makes me suspect that you may be using Apple's "Mail" program to email your files. Mail is notorious and (in)famous for reducing the size of your attachments at will if it deems it appropriate or necessary, as in "nobody in his right mind would want a JPEG that big!" Grrrrrr…
Ideally, you should switch to a decent email program. I use MS Entourage, part of MS Office.
The workaround is to archive or "zip" your image files before attaching them to Apple's Mail, so that you end up with an archived or zipped file that Mail can't touch, as it won't even know it's an image file.
If you are not using Mail, you'll have to continue troubleshooting.

72 dpi and 300 dpi

Is it the same image quality if I were to design an image in photoshop CS3 at 72 dpi and then change the size to 300 dpi for printing, as designing the image at 300 dpi right away?
If not, does anyone know the percentage I can set my workspace so that it would represent the original size?
I am designing a postcard at 6x4 and when its 300 dpi it is obviously huge on my screen and I would like to see it as the original size so that I can have an idea of how it looks.

First of all on the screen it is pixels (ppi) not dpi.
Having got this out of the way, a quick way to see print size it to select the Zoom tool and pick the appropriate button in the Options bar at the top.
For some basic information on resolution and printing go to www.scantips.com and browse through the articles. (It's not all bout scanning!)
..and of course there is the excellent article at http://www.peachpit.com/articles/article.aspx?p=1332854

Why did I get 72 dpi solutions in AI CS5 instead of 300 dpi in Photoshop CS5!

Dear all!
I have done my file in Photoshop with 300 dpi. I have finished it and then saved it as EPS because I would like to open it in my AI CS5.
So I go to File>Open the EPS File in AI CS5. I get it with 72 dpi file in AI CS5 when I check the resolution in Effect>Documents Raster Effects Settings. Why did I get 72 dpi file in AI CS5 instead of the original file which is really 300 dpi in Photoshop?
Will it change the quality if I change from 72 dpi to 300 dpi as I wish to in the Documents Raster Effects Settings?
Please help to explain in details if possible.
Thanks a lot and best wishes.
I am looking forward to hearing from you.
My best regards,
LUCK

Luck,
To see the use the raster image in its right size along with other objects, scale it (down) to match. To go from 72 to 300 PPI you need a factor of 0.24 (proportionally), you may use multiplication by 0.24 in the Transform panel or Object>Transform>Scale with 24% .
It means I must change resolutions in Document Raster Effects Settings if I have effects raster effects created within Illustrator. Is it right?
If (and only) if you wish to have the effects at the same resolution as (one of) the raster image(s). This will depend of the actual effect, but for many effects, yes (you will have to choose one resolution if the document contains more than one).
Illy always sees raster images at 72 PPI, unless she is told otherwise.

Greyscale jpegs at 300 dpi

Hi -
I have just changed from using Photoshop CS3 on a PC to CS5 on a Mac. Most of my work is deisgn in Quark Xpress 7 -- using Photoshop as my image editor.
I have tried doing some work today on a greyscale newsletter design. I started this work on my old PC and am completing it on my new Mac. The photos I had already edited and saved as jpegs in CS3 on the PC show up fine in Quark at 300 dpi, but the photos I have edited today in CS5, converting to greyscale and cropping to 300 ppi will only show up in Quark as 72dpi. If I convert them to CMYK Quark will recognise them as 300dpi.If I save them as PSD files in grey they will show up as 300dpi, just not as jpegs (which I'd prefer) and bizarely when saved as TIFFs are recognised as 260dpi!
At first I thought this was a Quark problem, but it doesn't look that way as the greyscale images from CS3 are working fine.
Is there some setting in CS5 about the way jpegs are written in greyscale that I am missing?
Any help gratefully received.
Thanks,
Greg Smith

Marian Driscoll schrieb:
It is fairly equal with 2002's InDesign 2.0 in regard to PSD and PDF support.
InDesign has extended it's PSD, PDF/PDP an AI support since then. 9 years! We live in 2011!
Do you know InDesign? Quark cannot export PDFs with live transparency up to today. This was possible since InDesign 2.0.
Same color management capabilites? None of them?
Layer Compss from Photoshop?
Direct support of AI files? (AI files contain a full pdf if compatible to pdf seaved.)
Fully supported RGB workflows as InDesign does?
Or do you really compare Quark's typography to InDesign's? Nested styles? Inline styles? GREP styles? Language tagged to the character, not to the paragraph or like Quark does to the whole document? Language based apostrophes?
Are you sure you want to compare? I am aware on Quark and I am aware that PDFs created from Quark are not the same as PDFs exported from InDesign. I have both applications on my computer. Do guess with which application I create only my stuff? InDesign, because I know both applications.
And if you want to compare Quark 9 to InDesign, then you should not tocompare it to version 2.0 which is now 9 years old, you should compare it to a future version of InDesign which will be available at that time. No one knows which functionality this InDesign version will have because no one knows when Quark 9 will be available. And neither no one knows what Quark 9 will can. Even if it would be announced now, Quark never fulfilled it's promises in the past to any future version.
Quark has never been able to solve problems in the past. Outside of the US is Quark way too expensive. (Sure InDesign costs much more here in Germany too.) Quark single version costs about 1.340,– Euro, InDesign 1.010,– EUR inclusive tax, or 1.126,– versus 849,– exclusive Tax (1.500 USD without tax versus 1.135,– USD). Quark has become much cheaper since InDesign hit the market here. But if you buy an Quark update you cannot be sure that the delivered serial will work. With the previous version it took me 4 months to get a working serial. Everyday phone to Quarks support. Expensive phone numbers outside Europe, because they are in Switzerland. (CH is not part of the European Union.) Virtually no one here in Germany buys Quark to create new art with it. It was only bought to use old files newer computers or because some partners deliver files which have to be opened. Have you ever tried to contact Quark's support? Maybe that you get one on the phone, but you will never get help.

How do I take 300 dpi photos with my iPhone 4s? And how do I export them to my MacBook Pro at 300 dpi to use as I want to print photos.

How do I take 300 dpi photos with my iPhone 4s?
And how do I export them to my MacBook Pro at 300 dpi to use as I want to print photos.
I have been using the standard camera on the iPhone and require 300 dpi to create photo books as the photos are resized according the layout.
Your time and assistance in appreciated.
Thanks

Thanks Tonefox!
After looking at a few of the links I found a mathematical equation that assisted me.
Inches = Pixels/DPI
eg: 3 inches = 300 pixels/100 DPI
Using this equation and the fact that iPhone 4s takes photos that are 3264 x 2448 I was able to work out the largest print I could make with 300 DPI.
Width 3264 pix/ 300 DPI = 10.88 inches
Height 2448 pix/ 300 DPI = 8.16 inches
Therefore, the largest print (with 300DPI) I can make of these photos is 10.88 inches x 8.16 inches.
Which is great!
So is it critical for me to change the dpi in say photoshop or does it not matter as long as I don't go above the 10.88 inches x 8.16 inches?
From what I can gather the smaller I resize the photo the higher the DPI and the bigger I stretch the photo the lower the DPI?
Further clarification will be much appreciated. Thanks

How can I get 300 dpi tifs out of webex stills & then worked on in adobe illustrator?

How can I get 300 dpi tifs out of webex stills & then worked on in adobe illustrator?
I have been trying to convert images created in webex and transferred to illustrator into 300 dpi tifs. They download as ucf's when generated on white board. Or I have to upload files from other webex participants coming in at 72 dpi, converting them to something bigger in photoshop to paint in before taking them back into the webex session as a doc that then gets worked on further during the session. Later they go into illustrator for some more work with vectors. That's fine for the web but now a publisher wants them as 300 dpi tifs and I can only get things back & forth as 72 dpi pdf's. If I try to bump them up with a resample, they come out teensy weensy. What am I missing and is there any way to make them look good?

What I need is to be able to transfer the images between formats without degradation of the resolution and find ways to sharpen what I have even if I can't increase pixels. If the original I'm delivered is a 96 dpi power point slide, for example, that's what I have to work with, I'm using Illustrator to compensate with vectors. But then I still need to get it back to a 300 dpi tiff to meet the specs.

How can I capture a frame with a dpi of 300 or more?

I took a HD video and edited it in Premiere Elements 12. I want to lift out some frames to submit as still shots for a magazine article. They need resolution of 300 dpi or higher. The only function I found in Premiere Elements was "freeze frame" which saves/exports a frame as a .bmp with a resolution of 72. Anyone know how to save it with higher resolution? (FYI, I also have Photoshop Elements 12.)

expressiveglass
One way....
1. Video on Video Track 1 of your HD project, with Timeline Indicator on frame for Freeze Frame
a. Tools Menu/Freeze Frame.
b. In Freeze Frame dialog, check mark next to "Edit in Photoshop Elements after inserting" and check mark next to "Insert in movie".
c. Hit "Insert in movie" button.
d. When Photoshop Elements 12 opens, the Image Menu/Resize/Image Size.
e. In the Image Size dialog, change the Resolution to 300 pixels per inch
f. File Menu/Save As to jpg file.
To get back to Premiere Elements 12, in Photoshop Elements 12 Editor, File Menu/Exit.
Does that work for you?
ATR

LaserJet 1200 Econo Mode 300 dpi 600 dpi

I just got a new HP tower, and when I hooked up the Laserjet 1200 series printer, It's printing very dark. I went into the control panel, as I had done in the past, and it doesn't show the economode tab for the toner, it says 300 dpi, 600 dpi, I've tried both and they both seem the same, not like the old economode. Please, can you tell me what is the best way to save toner. I do a lot of printing, and LOVE the Laserjet, I actually have two of them, PS, Just got the hp p6110y tower- It's awesome.
I thank you in advance for any assistance you might offer.

Hi , I see by your post that you are unable to set the Econo mode and Print Density on the printer. I would like to help you.
Did you download and install the latest HP LaserJet Pro Series Full Solution Software and Driver? Check Devices and Printers window and let me know how the printer name is listed. Can you send me a screen shot of the printer Properties please, so I can have a look at it. You could install a separate Universal driver for printing and you should have all the available options. Then the original driver can be used for scanning, just don't delete it from the Devices and Printers window. HP Universal Print Driver for Windows PCL6 (32-bit). If you appreciate my efforts, please click the 'Thumbs up' button below. Thank You.

Why jpeg file exported from Aperture with 300 dpi's it opens with 72 dpi's on PS ( image size)? I've tried several combinations and all give different results. And I am confused on what is the best workflow for me.

Ok.
My workflow is
RAW > Aperture Library > export jpeg high resolution 300 dpi's > one file on PS > edit > Save us jpeg. The I realised that files from PS were being save in a smaller size from the ones exported form Aperture. That is when I went o see <image size> on PS and files were with 72.
Since ten I've trying different things
1. Aperture > export as PSD > open on PS > edit > Save us jpeg = small file (around 15 MB)
2. Aperture > export as jpeg high resolution 300 dpi's > open on PS > CHANGE dpi's to 300 on <image size> edit > Save us jpeg = big file (Huge, actually)
What am I doing wrong? Would someone give me guidance and tell me what is the best workflow, considering I edit photos to deliver to my clients and I shall give them 300 dpi's.
Thank you

This is a known Aperture issue: Problem with Aperture 3.6 preset exports. | Apple Support Communities
Benjamin

Export 300 dpi file from multiple apps, but it is received at 72 dpi

Hi,
I need HELP please.
I am creating a print job that needs to be output at 300 dpi. I have created the file in Photoshop, Illustrator, and InDesign. Each time I set the file up as a 300 dpi file. I create the art, then I output. I have output both as an app original file (.psd, .ai, etc.) and as a .jpg and as a High Quality (Print) .pdf. But, when each of them is opened by another computer, the dpi is identified as 72 dpi. When they send the file back to me and I open it on my computer, it is identified as a 300 dpi.
Initially I had this problem with PS and I thought it was a PS problem. I worked with the folks at Adobe and they can't find a solution. Then, in desparation I had to get the file done, so I re-created everything in AI and had the same problem. Then in ID and had the same problem. (BTW - I'm using CS5.5). So, now I think that it's a Mac problem, not an Adobe problem.
Any ideas?
anita
PS - I use a 17" Mac Book Pro 2.2 GHz Intel Core i7; OS X 10.6.8 with an Apple Cinema Display 30" set to display at 1600 X 1200 (so I can read it as I'm not 19 any more)
Thanks for any help anyone can provide. I'm pulling my hair out trying to figure this out!!!

Let me see if I am understanding this correctly, you create a PSD file at 300dpi, then you save this and reopen on your computer and it is still 300dpi, then you send this file as a psd to your client, and they open it and tell you that it is only 72dpi, then they send the same file back to you and it is at 300dpi on your computer again.
Are you sending the file via email, cd or flash drive?
Is the file sent in its raw psd state or is it being compressed with .zip, or .sit or anything like that?
Could you send me the file so I can confirm if the file is indeed 72dpi.
Otherwise this sounds like almost impossible behaviour to me.

72 dpi versus 300 dpi???

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