Image DPI Checker

What DPI is your image—and will it have enough pixels to print? Check the file’s recorded DPI and pixel dimensions, then choose a print size and target resolution to see whether it meets your requirements.

Free to use. Your photo is checked in your browser and stays on your device.

Check your image’s DPI

Drop or choose an original photo to read its saved DPI and pixel dimensions, then check a print size.

JPG, PNG, WebP, HEIC/HEIF · Up to 10 MiB · 40 MP limit except HEIC/HEIF

How to check the DPI of an image

Start with the file you’ll actually send to print. Its saved DPI, pixel dimensions, and resolution at the final print size each tell you something different.

Check your photo in three steps

Choose your image

Drop your image into the photo DPI checker or choose a file from your device. Use the original or final export, since a screenshot has its own pixels and metadata. Try the sample if you want to see a result first.

Read the saved DPI and pixel dimensions

Recorded DPI comes from readable resolution metadata in the file. Pixel dimensions are the image’s width and height in pixels. If horizontal and vertical DPI differ, both values appear. Missing or uncertain metadata is flagged rather than replaced with a guessed DPI.

Choose your print size and target PPI

Pick 10 × 15 cm, 13 × 18 cm, A4, or A3. For 4 × 6, 5 × 7, or 8 × 10 in, choose Custom, switch the unit to in, and enter your dimensions. Set Target resolution (PPI) to your print provider’s requirement; it starts at 300. The result tells you whether the image meets that target.

This check assumes the image fills the print area. Different aspect ratios require cropping. If you plan to leave borders, enter the dimensions of the printed image, excluding those borders.

Is my image 300 DPI? Check two things

Does the file record 300 DPI? Read the saved value above.

Does it deliver 300 PPI at your print size? Set the target to 300 and check whether it passes. A 2400 × 3000 px image gives 300 PPI at 8 × 10 in, but only 150 PPI at 16 × 20 in—whatever its saved DPI says.

The target is for comparison only. It does not change the file’s recorded DPI.

PPI means pixels per inch in the printed image; DPI technically means a printer’s dots per inch. “Image DPI” is the familiar term for the saved resolution, so you’ll see both here. Use your print provider’s required PPI; 300 is a common photo-print target, not a rule for every product.

How big can I print my photo?

Start with your pixel dimensions and the resolution your print needs. Use the checker to try a size, or work out a size from the formula below.

Use pixels ÷ PPI to find your print size

Print size in inches = pixel dimensions ÷ target PPI. Divide width and height separately, then multiply by 2.54 for centimeters. A 3000 × 4500 px photo works out to 10 × 15 in at 300 PPI or 20 × 30 in at 150 PPI. Those are 25.4 × 38.1 cm and 50.8 × 76.2 cm, respectively.

To calculate PPI from pixels and inches, reverse the formula: pixels ÷ printed inches. These calculations measure pixel density, not sharpness.

How many pixels do you need for an 8 × 10 print—or A4?

At 300 PPI, an 8 × 10 in print needs 2400 × 3000 px after cropping. Use the table for other common sizes. Swap width and height for landscape prints; A4 and A3 values are rounded up to whole pixels.

Pixel dimensions for common photo and paper sizes at 300 PPI
Print size	Physical dimensions	Pixels at 300 PPI
4 × 6 photo	4 × 6 in / 10.16 × 15.24 cm	`1200 × 1800 px`
5 × 7 photo	5 × 7 in / 12.7 × 17.78 cm	`1500 × 2100 px`
8 × 10 photo	8 × 10 in / 20.32 × 25.4 cm	`2400 × 3000 px`
A4	210 × 297 mm	`2481 × 3508 px`
A3	297 × 420 mm	`3508 × 4961 px`

Check print resolution after cropping or exporting

The file you deliver matters more than the dimensions of the image you started with. Recheck the saved output whenever you crop, resize, or export it.

A crop can change what size you can print

Crop a 2400 × 3000 px photo to 1800 × 2250 px and its resolution at 8 × 10 in drops from 300 to 225 PPI. To keep 300 PPI, print that crop at 6 × 7.5 in.

Check each saved crop at its intended print size. To prepare several files, use the bulk image cropper first.

Check each file in an Etsy printable set

Check the downloadable artwork at every size you advertise, especially when a set includes different frame ratios. If you designed it in Canva or another editor, inspect the exported JPG or PNG. The checker handles one image at a time, so choose each file separately. These print checks apply to the artwork buyers download; Etsy listing photos serve a separate purpose.

What to do when the resolution is too low

Try a smaller print, a less aggressive crop, or a larger source file. For print-on-demand products and posters, use the provider’s specification for that item. For journal figures, check the submission rules for the type of figure you’re sending.

Inspect the final image at its intended print size before placing an order or delivering a file.

Questions about image DPI and print quality

Why is there no DPI value in my PNG?

PNG resolution metadata is optional. The W3C PNG specification also defines pHYs records with an unknown unit, which give only the pixel aspect ratio, not an absolute DPI. Missing DPI does not prevent print-size checking: choose your intended print size and target PPI. This checker flags missing or uncertain values rather than assuming 72 or 96 DPI.

Why does my image say 72 DPI? Can it still print at 300 PPI?

72 DPI may be the value saved by the software that created or exported the file. It does not mean the image has too few pixels to print. A 2400 × 3000 px file delivers 300 PPI at 8 × 10 in even with a 72 DPI tag. If your printer also requires a 300 DPI tag in the file, that is a separate requirement.

Does changing DPI improve image quality?

Changing DPI metadata alone does not add pixels or sharpen an image. It changes the suggested print size in software that uses that tag. Resampling changes the pixel count, but extra pixels do not guarantee extra detail. See Adobe’s guide to printed image resolution for the relationship between pixels, print size, and resampling. This tool checks image resolution and calculates print PPI; it does not change the file’s DPI, resize it, or create a new download.

Why is my image 300 DPI but blurry?

A saved 300 DPI value cannot tell you whether a photo is in focus or has been heavily compressed or enlarged. The image may also be printed too large for its pixel count. Set your print provider’s required PPI as the target and check whether your print size passes, then inspect the image detail. Meeting a resolution target is not a sharpness guarantee.

Why does my image show different DPI in different programs?

An image can contain more than one resolution record. Programs may read different fields or show a default when no value is saved. Use the image metadata viewer to inspect the readable entries in your file. This checker flags conflicting readable records.

Can I check image DPI on iPhone, Mac, or Windows without Photoshop?

Use this page in your browser and choose the saved photo from your device. The checker reads supported files locally, so you can check image DPI without Photoshop or sending your photo to a server. Select the actual image rather than taking a screenshot of it.

Can I check the DPI of JPG, PNG, HEIC, or PDF files?

You can check JPG/JPEG, PNG, WebP, and HEIC/HEIF images. Each file can be up to 10 MiB. JPG, PNG, and WebP have a 40 MP limit; HEIC/HEIF are exempt from that pixel limit. File support does not guarantee that DPI metadata is present. PDF and TIFF files are not supported.

Is this a free image DPI checker? Can I check a batch?

It’s free, and your selected images are read in your browser without uploading them to a server. It checks one image at a time. Select “Open” to inspect the next file; batch checking and CSV export are not available.

Ready to check your image’s DPI?

Choose an image to read its saved DPI and pixel dimensions, then check whether your print size meets your target resolution. Your image stays on your device.

Check image DPI