圖像大小調整器

將圖像調整為精確尺寸或按百分比縮放。包含Web和列印的常用預設。

image resizerresize photochange image sizescale imagedimension changer

Drag & drop a file here, or click to browse

Supports image files: JPG, PNG, GIF, WebP, BMP, SVG, TIFF

Performance

Web Worker Enabled

Using Web Worker for better performance (prevents UI freezing with large images)

⚠️ Web Worker is not available in this browser. Falling back to main thread.

Options

Maintain aspect ratio

Width

Height

Preset Sizes

Input

Output

Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.

Examples

Example 1

Resize images for website banners (1920x1080)

Click "Example 1" above to load

Example 2

Create thumbnails from large photos

Click "Example 2" above to load

Example 3

Prepare images for printing (300 DPI)

Click "Example 3" above to load

Frequently Asked Questions

Q: Can I maintain aspect ratio?

A: Yes, option to lock aspect ratio or stretch to exact dimensions.

Q: What resampling algorithms are used?

A: High-quality Lanczos resampling for smooth results.

Q: Does it support bulk resizing?

A: Yes, resize multiple images with same or individual settings.

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浮水印添加器

添加文字或Logo浮水印到圖像，可自訂位置、透明度和大小。支援批次處理。

Privacy & Security

This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.