Change Image DPI

About DPI and Image Resolution

DPI (Dots Per Inch) and PPI (Pixels Per Inch) are measurements that determine how an image will be printed. While the terms are often used interchangeably, DPI technically refers to printer resolution while PPI refers to digital image resolution. Both determine the physical size and quality of a printed image.

Features

• Set custom DPI values (72, 150, 300, 600, etc.)
• Quick presets for web and print
• Maintain image pixel dimensions
• Batch DPI adjustment for multiple images
• Preview current and new DPI settings
• Download individually or as ZIP
• Preserve image quality

Common DPI Values

• 72 DPI: Standard for web and screen display
• 150 DPI: Draft quality printing, newspapers
• 300 DPI: Standard for professional printing, photos
• 600 DPI: High-quality printing, fine art prints
• 1200+ DPI: Professional photo printing, large format

When to Change DPI?

Change DPI when preparing images for printing to meet printer specifications, converting web images for print use, or preparing photos for professional publication. Higher DPI produces better print quality but doesn't change how the image looks on screen.

Important Note

Changing DPI metadata doesn't actually change the image quality or add detail. It only changes how large the image will print. To truly increase print quality, you need to start with a high-resolution image. This tool adjusts the DPI setting in the image file metadata.