图片编辑器
最大文件大小:10 MB
📎

拖拽图片到此处或点击浏览

Calculate photo file sizes, aspect ratios, print sizes, and resolution. Enter image dimensions and DPI to see optimal print sizes and file sizes. This free photo calculator helps photographers plan their prints and digital storage.

使用方法

如何使用此工具

第一步: Upload an Image

Drag and drop an image onto the upload area or click to browse. Supported formats include JPEG, PNG, and WebP. Maximum file size is 10 MB.

第二步: Choose an Edit Mode

Select from four editing modes: Resize to change dimensions, Crop to select a specific area, Compress to reduce file size, or Convert to change the image format.

第三步: Apply and Download

Adjust the settings for your chosen mode, click Apply, then preview the result. Use the Download button to save your edited image.

主要特点

  • Four editing modes in one tool
  • Custom dimensions and aspect ratio lock
  • Quality slider for compression control
  • 为移动设备优化的响应式设计
  • 无需安装 - 在浏览器中运行
  • 完全免费,无任何限制

常见用途

  • Social Media:
    Resize and compress images to meet platform requirements for Instagram, Twitter, Facebook, and LinkedIn.
  • Web Development:
    Convert images to WebP format and optimize file sizes for faster website loading times.
  • Print Preparation:
    Resize images to specific print dimensions and ensure proper resolution for high-quality prints.
  • Email Attachments:
    Compress large photos before emailing them to meet attachment size limits while maintaining quality.

常见问题

Q: Is this photo editor free?
A: Yes, it is completely free with no watermark and no usage limits. All processing happens locally in your browser.

Q: What image formats are supported?
A: You can upload JPEG, PNG, and WebP images. Output formats include JPEG, PNG, and WebP depending on your selected mode.

Q: Are my images uploaded to a server?
A: No, all image processing is done entirely in your browser using the HTML5 Canvas API. Your images never leave your device.