DPI & Print Size Checker

Upload an image to check its resolution, detect DPI, and verify if it's ready for professional printing.

Drag & drop an image here, or click to select

JPG, PNG, WEBP (Max 50MB)

💡 What is DPI?

DPI stands for Dots Per Inch, representing how many ink dots a printer places within one inch. Standard web images use 72 DPI, but high-quality physical prints require 300 DPI. Our tool helps you verify if your photo is large enough for professional printing by checking its embedded DPI value and calculating the maximum print size.

How to Check Image DPI

1

Upload Your Image

Drag and drop your image into the upload box or click to select a JPG, PNG, or WEBP file.

2

View DPI & Details

Our tool instantly reads your image's embedded DPI, resolution, aspect ratio, file size, and color depth.

3

Check Print Readiness

See your image's exact print size at different DPI values and whether it meets the 300 DPI standard for professional printing.

FAQ — DPI Checker

What does DPI mean?

DPI stands for Dots Per Inch. It measures how many tiny dots a printer uses per inch when printing an image. Higher DPI means sharper, more detailed prints. For screens, DPI refers to how densely pixels are packed.

What DPI do I need for printing?

For high-quality photo prints, posters, and professional work, you need at least 300 DPI. For everyday printing (flyers, documents), 150 DPI is acceptable. Web images typically use 72 DPI since screens don't need the same density as printers.

Why does my image show "Not Found" for DPI?

Not all images have DPI information embedded. Screenshots, web-downloaded images, and some camera exports don't include DPI metadata. In these cases, the standard default of 96 DPI is assumed. The image can still be printed — DPI just determines the physical size.

Can I change the DPI of my image?

Yes, but simply changing the DPI number doesn't add detail. To truly increase print quality, you need a higher-resolution source image. Changing DPI from 72 to 300 without upscaling just makes the image print smaller. Use our Image Compressor or Resizer tools to optimize your images.

Is this online DPI Checker safe & private?

No. All processing happens 100% locally in your browser. Your images never leave your device. We read the DPI from the file's binary data directly in JavaScript.

What image formats are supported?

We support JPEG, PNG, and WEBP. For JPEG files, DPI is read from the JFIF header or EXIF data. For PNG files, it's read from the pHYs chunk. For WEBP, we use EXIF metadata as a fallback.

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