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Calculate effective print DPI and read embedded DPI — in your browser.
Calculates effective print DPI from pixel width and print width, and reads embedded DPI.
Enter inches; effective DPI is pixels divided by that width.
Reads JFIF/EXIF/PNG resolution tags and warns on mismatch.
Decoding and metadata reading happen in your browser; nothing is uploaded.
Image DPI Checker calculates the effective print DPI of an image from its pixel width and the print width you enter, so you can tell whether it is sharp enough for a given print size. It also reads the DPI value embedded in the file when one is present.
Type your intended print width in inches and the tool divides the pixel width by it to give the effective DPI, then compares that with any embedded DPI and warns you if the two differ.
It is a calculation plus a metadata read — no image is uploaded, and the result can be downloaded as a text report with a quick print-quality guide.
Shows the DPI calculated from your print size and the DPI tag stored in the file.
Flags when embedded and effective DPI disagree so prints are not a surprise.
Includes a quick 72 / 150 / 300 DPI reference for print quality.
Decoding and metadata reading happen in your browser; nothing is uploaded.
Check whether an image is sharp enough at A4, photo or poster sizes.
Confirm DPI before sending artwork to a printer.
Quickly judge whether an image is screen-only or print-ready.
See when a file's embedded DPI tag does not match reality.
Yes. It parses the JFIF, EXIF or PNG resolution fields and shows the embedded DPI when present, alongside the effective DPI calculated from your print width.
It divides the image's pixel width by the print width you enter. For example, 1200 pixels printed at 4 inches wide is 300 effective DPI.
Embedded DPI is a tag stored in the file; effective DPI depends on the print size you choose. The tool warns when they differ because print apps may use the embedded value.
Yes, there is a print-width control. Effective DPI only makes sense relative to a physical print size, so you set the width and the tool computes DPI from it.
No. The image is decoded and its metadata parsed in your browser; nothing is sent to a server.
Tools that pair well with Image DPI Checker.