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DPI Converter & Changer

To convert an image's DPI, upload it below and pick a target DPI — 300 DPI for print, 150 for drafts, 72 or 96 for web. This free DPI converter also checks your image's current DPI and shows the exact print size in inches before you download. Everything runs in your browser, so your images are never uploaded.

Drop an image here or click to upload

Supports PNG, JPG, WebP

About DPI Conversion

🖨️ What is DPI?

DPI (Dots Per Inch) defines how many pixels fit in one printed inch. Higher DPI means more detail and sharper prints, but larger file sizes.

📐 Common DPI Values

72 DPI for web/screen, 96 DPI for Windows displays, 150 DPI for draft prints, 300 DPI for high-quality printing (photos, brochures, business cards).

🔄 Metadata vs Pixels

This tool can either just change the DPI metadata (keeping pixels the same but changing print size) or resize pixel dimensions to maintain the same physical print size at the new DPI.

🔒 100% Private

Your images never leave your device. All conversion happens locally in your browser. No upload, no server, no data collection.

Frequently Asked Questions

What is DPI and why does it matter?+
DPI (Dots Per Inch) measures how many pixels are packed into one inch of a printed image. Higher DPI means sharper prints. 72 DPI is standard for web, 150 DPI for draft prints, and 300 DPI for high-quality printing.
Does changing DPI change image quality?+
Changing DPI metadata alone does not change quality — it only changes the print size. However, if you also resize pixels to match the new DPI (enabled by default in this tool), the image dimensions will change. Upscaling adds pixels via interpolation and may look softer; downscaling reduces pixels.
What DPI should I use for printing?+
For high-quality prints (photos, brochures), use 300 DPI. For large-format prints viewed from a distance (posters, banners), 150 DPI is usually sufficient. For web or screen use, 72 or 96 DPI is standard.
Is this DPI converter free and private?+
Yes. All processing happens in your browser. Your images are never uploaded to any server. The tool is 100% free with no limits or signup.
How do I convert an image to 300 DPI?+
Upload your image to the converter above, select 300 as the target DPI, and download the result. If you want the printed size to stay the same, leave the resize option enabled so the pixel dimensions scale with the new DPI. 300 DPI is the standard for photos, brochures, and business cards.
How do I check the DPI of an image?+
Drop the image into the tool above — it reads the DPI stored in the file's metadata and displays it alongside the pixel dimensions and the resulting print size in inches. If a file has no DPI metadata, most software assumes 72 DPI by default.
What is the difference between DPI and PPI?+
PPI (pixels per inch) describes pixels in a digital image, while DPI (dots per inch) describes ink dots a printer lays down. In everyday image editing the two terms are used interchangeably, and the value stored in an image file is the one this tool reads and changes.

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