2026-06-151 分鐘閱讀

如何線上裁剪圖片

學習如何使用 PowerUtils 免費線上圖片裁剪工具將圖片裁剪到精確尺寸。適合社交媒體、個人頭像和網頁圖形。

imagecropresizesocial-media

Why Crop Images?



Image cropping helps you:
  • Focus on important subjects

  • Create consistent aspect ratios

  • Optimize for social media platforms

  • Remove unwanted areas


  • How to Use the Image Cropper



    Step 1: Upload Image



    Visit the Image Cropper and upload your image.

    Step 2: Define Crop Area



    Select cropping options:
  • Freeform: Drag to select any area

  • Fixed Ratio: 1:1, 16:9, 4:3, etc.

  • Custom Dimensions: Exact width and height

  • Preset Sizes: Social media, profile, banner


  • Step 3: Apply and Download



    Preview the cropped image and download in your preferred format.

    Image Cropping Tips



  • Rule of Thirds: Place subjects at intersection points

  • Aspect Ratios: Instagram 1:1, Twitter 16:9, Facebook 1.91:1

  • Resolution: Maintain sufficient pixels for quality

  • Composition: Remove distracting background elements


  • Related Tools



  • Image Resizer - Change dimensions

  • Image Converter - Change formats

  • Image Compressor - Reduce file size


  • Related Articles



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