Check the current DPI of a JPG or PNG, calculate publication print size, and create a true 300 or 600 DPI resampled image directly in your browser.
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Creates the pixel dimensions required by the chosen DPI and physical print width, then writes matching DPI metadata into the output.
Change Image DPI reads embedded JPG/PNG resolution metadata when available, calculates how large the current pixels can print at 300 or 600 DPI, and can resample the image to the pixel dimensions required for a chosen publication width. Metadata-only editing is kept separate because changing a DPI tag alone does not increase real image resolution.
No. It changes the print-resolution tag but does not add pixels. For academic journal submission, use Publication Resample instead.
The tool reports that DPI is not embedded. You can still see the maximum print width supported by the current pixels at 300 and 600 DPI and choose a target print width for resampling.
No. Resampling creates the pixel dimensions required by the target DPI and print size, but it cannot recreate detail that was absent from the source image.