JPG 图片邮件压缩到 100KB 以下
在线为邮件压缩到 100KB 以下优化和压缩 JPG 图片。使用适合email attachments的浏览器本地处理技术，无需上传文件，保障隐私与高清晰度。
如何使用这个预设
- Upload one or more JPG images from your device.
- Start with 65% quality and a 1600px maximum width for 邮件.
- Preview the result, adjust quality or dimensions if needed, then download the optimized image.
推荐设置
导出格式JPEG
起始质量65%
最大宽度1600px / 高度自动
处理方式浏览器本地处理
适合场景
- JPG 压缩到 100KB 以下
- 邮件
- email attachments
- batch compression
- local privacy-first processing
优化建议
- For 压缩到 100KB 以下, reduce dimensions before lowering quality too far.
- JPEG is selected as the export format for this preset.
- If the output is still too large, lower the maximum width first and then adjust quality.
隐私和浏览器限制
PicCraft 会在浏览器中处理JPG images，文件不会上传到服务器。但超大图片仍受设备内存和浏览器 Canvas 尺寸限制影响。
常见问题
Are my JPG images uploaded?
所有处理都在浏览器本地完成，无需上传文件。
Is this preset reasonable for 邮件?
Yes. It starts from settings selected for email attachments and small file sharing.
Can I compress JPG 压缩到 100KB 以下?
Yes. Start with this preset, then adjust quality or width if your exact file-size target needs more tuning.
Which output format does this preset use?
This preset exports as JPEG. You can still change the format before downloading.
What if the image is still too large?
Reduce maximum width, lower quality gradually, or process fewer large files at once.
Why can very large images fail?
Browsers limit memory and canvas size. Reduce maximum width or process fewer files if an export fails.