Image DPI Checker
Check the DPI/PPI resolution of an image
100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.
Drop an image here or click to upload
Supports JPG, PNG, TIFF
About this tool
DPI (dots per inch) or PPI (pixels per inch) describes how much detail an image has relative to its physical print size - important for knowing whether an image will look sharp or blurry/pixelated when printed. This tool reads an image's embedded resolution info so you can check if it's suitable for printing at a given size.
How to use this tool
- Upload image for print checkAdd the photo or artwork file you plan to print.
- Read DPI/PPI metadataInspect embedded resolution values and pixel dimensions together.
- Estimate print suitabilityCompare effective density with your intended physical print size.
- Decide correction pathIf needed, update metadata or upscale pixels before final print submission.
How big can you print a photo?
Divide the pixel dimensions by the print resolution. At 300 DPI - the standard for sharp prints - a 3000 x 2000 pixel photo prints at 10 x 6.7 inches. At 150 DPI it can go to 20 x 13.3 inches, which still looks good on a poster viewed from a distance.
The DPI value stored in a file only matters for printing. On a screen, only the pixel dimensions count, which is why many images report 72 DPI and still look sharp online.
Key features
- Quickly reveals whether a file is print-ready or likely soft.
- Separates metadata issues from true resolution limitations.
- Helpful for avoiding print-shop rejection and rework.
- Simple validation step before expensive physical printing.
Common uses
- Checking passport, poster, or brochure image readiness.
- Verifying design exports before handing off to printers.
- Auditing old image archives for print-safe assets.
- Diagnosing why one print appears blurrier than expected.
Tips for better results
- Always evaluate DPI together with pixel dimensions and target size.
- Use 300 DPI baseline for close-viewed print materials.
- For large banners, lower DPI can still be acceptable at distance.
- Confirm printer requirements before editing files repeatedly.
Mistakes to avoid
- Assuming metadata alone guarantees sharp print output.
- Ignoring physical output size while checking DPI.
- Confusing screen resolution with print density.
- Submitting low-pixel files with high DPI tag and expecting clarity.
Frequently asked questions
300 DPI is the standard target for sharp, professional print quality. Lower values like 150 DPI can still look acceptable for larger prints viewed from a distance, but text and fine detail will look softer.
Use the Image DPI Converter tool to change the DPI metadata, though keep in mind that changing DPI alone doesn't add real detail - for genuinely higher resolution, you'd need the Image Upscaler or a higher-resolution source photo.
Not really - screens display based on pixel dimensions, not DPI. DPI mainly matters when an image will be printed at a specific physical size.
Divide the pixel width and height by 300 for a sharp print: a 3000 x 2000 px image prints well at 10 x 6.7 inches (about 25 x 17 cm). At 150 DPI it can be twice as large for posters viewed from a distance.
72 is a common default written by software that does not care about print size, such as many screenshots and web exports. The pixel count is what decides print quality, not the number in the tag.
Most labs recommend around 300 DPI at the final print size and accept 200-250 for larger prints. Check your lab's guide for the exact pixel dimensions per size.