修改DPI

什么是图片DPI？

DPI tool changes the dots-per-inch resolution of images. Set correct DPI for print requirements without resizing pixels.

DPI changes are applied locally. No upload to external servers.

何时使用？

• Print preparation: Set 300 DPI for professional print
• Web optimization: Use 72 DPI for screen display
• Requirements: Meet publisher or printer specifications
• Document standards: Comply with submission guidelines

优点

• Precise control: Set exact DPI value
• Batch: Change DPI for multiple images
• No resampling: Adjust metadata without resizing
• Quick: Instant local processing

常见问题

1. Upload: Add your image(s)
2. Set DPI: Enter target DPI (e.g., 72, 150, 300)
3. Apply: Run the DPI change
4. Download: Save with new DPI setting

提示: 300 DPI is typical for professional printing.