DPI Checker
DPI Checker shows the resolution value stored inside a photo file, so photographers can confirm what DPI a JPEG, PNG, TIFF or BMP reports before sending it to a print lab, a publisher or a client. Choose an image and the tool reads the resolution from the file's EXIF data or header and displays it instantly.
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- Faster editing time
- 96%
- Saving on editing costs
- 90%
- Typical turnaround
- 24h
Reviews from those who know best.
Rated 5 out of 5
“The term 'game changer' gets thrown out a lot, but for any busy photographer, this software will change your life.”
Michael AntonyMichael Antony Photography, USARated 5 out of 5
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Charmi Patel PeñaWedding Photographer, USA
Rated 5 out of 5
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Sam HurdSam Hurd Photography, USARated 5 out of 5
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Sarah EdmundsPortrait & Wedding Photographer, Italy
Rated 5 out of 5
“It’s a must for me after my culling process. Love Imagen since day one.”
Fer JuaristiFer Juaristi Photography, MexicoRated 5 out of 5
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Daniel AlonsoPeople TrueLove Tellers, Spain
Frequently asked questions
What does DPI mean for a digital photo?
DPI, or dots per inch, is a value stored in an image file that tells printing software how many pixels to place in each inch of paper. It does not change the pixels themselves. A 3000 by 2000 pixel photo holds the same detail at 72 or 300 DPI; only the default print size changes. Print size equals pixel dimensions divided by DPI.
How do I check the DPI of an image?
Click the area labeled Click or drag image here and choose a photo. There is no button to press: the tool reads the file as soon as you select it and displays the value next to Result, for example 300 DPI. If a file records different horizontal and vertical values, both are shown. To check another file, simply select a new image and the result updates.
What does it mean when the checker finds no DPI?
The tool looks for a resolution where each format keeps one: EXIF or JFIF data in a JPEG, the pHYs chunk in a PNG, and the header of a TIFF or BMP. If none is stored, or the file only records a pixel shape without units, it reports No DPI stored in this file. Formats such as WebP and GIF are reported this way too. Most software then assumes 72 DPI. A missing value does not mean your photo is low quality; for print, what matters is its pixel dimensions.
What DPI do I need for printing photos?
300 DPI is the usual target for high-quality photo prints viewed up close, while large prints viewed from a distance can look excellent at 150 to 200 DPI. To work out what you need, multiply the print size in inches by the DPI. An 8 by 10 inch print at 300 DPI needs an image of 2400 by 3000 pixels.
Does the DPI Checker change my file?
No. The checker only reads your image and reports what it finds; it never modifies or re-saves the file. If a print lab or publisher asks for a specific DPI, set it when you export from your editing software, where you can also confirm the pixel dimensions are large enough for the print size the client has ordered.
Is the DPI Checker free and private?
Yes. It is free, requires no software and adds nothing to your images. The file is read in your browser on your own device and is never uploaded anywhere. To use the tools, you confirm once that you are a photographer and create or log in to a free Imagen account, which unlocks every tool in the collection.
