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Check image PPI and DPI online.
Choose a JPG, PNG, or WebP to see its pixel dimensions, embedded resolution metadata, and effective PPI at your planned print size. Your image never leaves your device.
Drop an image here
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JPG, PNG, or WebP • processed locallyWHAT THE RESULT MEANS
DPI metadata is not image detail.
A digital image is made of pixels. Its embedded DPI or PPI value is a print instruction that suggests how densely those pixels should be placed on paper.
Changing 72 PPI to 300 PPI without changing the pixel dimensions does not create extra detail. It only changes the suggested physical print size. PixGauge therefore shows both the metadata and the image's actual pixel dimensions.
To assess a particular print, choose your image and enter the planned width and height. Effective PPI is calculated from pixels divided by print inches, regardless of what the metadata says. If the image and print have different proportions, cropping or borders will affect the final result.
Want print recommendations for common frame sizes? Use the full Image Print Analyzer.
HOW TO CHECK IMAGE PPI
Check PPI online in three steps
- Choose an image. Use a JPG, PNG, or WebP from your device.
- Read the embedded value. PixGauge checks common JPEG EXIF, JPEG JFIF, and PNG pHYs resolution fields.
- Compare it with the pixels. Use the 300 PPI size as a reference, or enter your planned print dimensions to calculate effective PPI.
COMMON QUESTIONS
DPI and PPI FAQ
What is the difference between DPI and PPI?
PPI means pixels per inch and describes digital image resolution at a physical size. DPI means printer dots per inch. People often say DPI when they mean image PPI.
Does changing DPI improve image quality?
No. Changing only the embedded number does not add pixels or detail. Higher-resolution source pixels or careful resampling are needed to create a genuinely larger image.
Is 300 DPI good for printing?
Yes. 300 PPI is a common target for close-viewed photo prints. Around 150 PPI may still look good for posters or larger pieces viewed from farther away.
Can an image labeled 72 DPI still print at 300 PPI?
Yes. The 72 DPI value may be only an embedded label. A 3,600-pixel-wide image placed 12 inches wide supplies 300 effective PPI, regardless of a 72 DPI tag. See the 72 vs 300 DPI explanation for the opposite example too.
Why does my image have no DPI value?
Many images—especially web downloads, screenshots, and exported files—contain no usable resolution metadata. That is normal. Pixel dimensions still let you calculate suitable print sizes.