Showing results for 
Show  only  | Search instead for 
Did you mean: 

dpi requirements for photographing paintings



I am somewhat confused how to use the correct dpi format for taking pictures of paintings.  For example, one competition requires 72 dpi minimum) for all digital images, yet when I click on "properties" for my edited digital images, which are resized at a minimum, of 1600 pixels for the longest size of the painting, it says "8 dpi."  I want to make sure I follow the correct specifications for my digital images.  Could you please clarify this issue for me?  Thank you very much.



Your photos are captured in pixels but printers turn the pixels into DPI (dots per inch) which confuses a lot of people thanks to their software. Generally speaking photos to be viewed up close require about 300 DPI but that number can be a bit lower but NOT 72 DPI. A billboard might get by at 72 DPI because it's viewed from a distance but a standard photo would look terrible. How do you submit your photos? 1600 pixel wide images can't be printed very large but display very nicely on computer monitors.

"A skill is developed through constant practice with a passion to improve, not bought."

Thanks so much.  I save my picture files to a CD or enter via an Internet site and upload them directly to that site.  There is always a pixel limitation (1600 pixels being the longest side of the painting), but one contest also had a dpi limitation (minimum of 72 dpi, which I thought was the Canon default for picture taking).  I will try to change the dpi in Photoshop (as one respondent mentioned) but I am worried that this will skew the pixel requirement.

You are confusing two different terms.  The 72 dpi in this case does not refer to the canvas size.

EOS 1DX and 1D Mk IV and several lenses!


If you open your file in Photoshop and click on ImageSize.You will bring up the Image Size dialogue for the selected file. At the bottom unclick "Resample Image". With this setting you can change the size and resolution. Note that changing one setting makes the others change as well in proportion. Setting the resolution on 300 you can see the largest size that file can be reproduced.

EOS 1DX and 1D Mk IV and several lenses!
03/14/2023: New firmware version 1.8.1 is available for EOS R6

03/02/2023: New Firmware Updates Are Available:

EOS R7 - Version 1.3.0EOS R10 - Version 1.3.0
02/24/2023: We've updated Share Your Photos

2/07/2023: New product announcements!

EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
01/18/2023: New firmware version 1.1.1 is available for EOS R6 Mark II
01/09/2023: Help ensure your autofocus is properly aligned with a Canon Precision Alignment
01/03/2023: Welcome to CES 2023!
12/08/2022: New firmware version is available for EOS C70
12/07/2022: New firmware version 1.7.0 is available for EOS R5
11/22/2022: New firmware available for EOS R3, EOS R7 and EOS R10
11/16/2022: We're thrilled to be ranked among the Best Employers for Veterans in 2022 by Forbes.
08/31/2022: New firmware version 1.1.1 is available for RF 70-200mm L IS USM
08/09/2022: New firmware version 1.2.0 is available for CR-N 300
08/09/2022: New firmware version 1.2.0 is available for CR-N 500
07/14/2022: New firmware version 1.0.1 is available for CR-X300
06/10/2022: Service Notice:UPDATE: Canon Inkjet Printer continuous reboot loop or powering down
06/07/2022: New firmware version 1.3.2 is available for PowerShot G7 X Mark III
05/31/2022: Did someone SAY Badges?
05/26/2022: New firmware version is available for EOS-C500 Mark II
05/26/2022: New firmware version is available for EOS-C300 Mark III
05/10/2022: Keep your Canon gear in optimal condition with a Canon Maintenance Service
05/05/2022: We are excited to announce that we have refreshed the ranking scale within the community!
04/26/2022: New firmware version is available for EOS R5 C
03/23/2022: New firmware version is available for EOS-C70
02/09/2022: Share Your Photos is back!
02/07/2022: New firmware version 1.6.1 is available for EOS-1DX Mark III
01/13/2022: Community Update. We will be retiring the legacy profile avatars on 01/20/2022. Click this link to read more.