DPI Adjuster
Set JPG/PNG DPI for print without resampling
About DPI Adjuster
A DPI adjuster sets the dots-per-inch metadata on an image so print software knows the intended physical size. The image's pixel dimensions don't change — only the tag that tells a printer 'this 1000×1500-pixel image should print at 4×6 inches' vs. '10×15 inches'. Crucial for passport photos, government forms, and any printed output with size requirements.
Frequently asked questions
No — pixel count and pixel values stay identical. DPI is just a hint to print software about size. Resampling is what changes quality.
300 DPI is the print-industry standard for high-quality output. 150-200 is acceptable for body photos or posters viewed from distance. 72 is screen-only.
Typically 600 DPI for documents; many governments accept 300+. Always check the exact requirement on the country's official form.
Screens use device pixels; print uses DPI metadata. A 300 DPI file fills more screen but prints smaller and crisper than a 72 DPI file with the same pixel count.
No — PDFs use their own size metadata. This tool writes EXIF/PNG DPI tags on raster images (JPEG, PNG, TIFF).
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DPI Adjuster
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