Presentation Conversion
Convert PPT to PPSX Online — Free
Fast, free PPT to PPSX converter. No registration required.
或从以下导入
200万+文件已转换
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安全传输
HTTPS 加密上传
隐私优先
文件处理后自动删除
无需注册
即刻开始转换
随处可用
任何浏览器，任何设备
如何转换
1
Upload your .ppt file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .ppsx file when it's ready.
什么是 PPT？
PPT is the legacy PowerPoint format used before Office 2007. It remains common in archived presentations and older business environments.
格式详情
- 全称
- Microsoft PowerPoint 97-2003
- 扩展名
- .ppt
主要特点
- Legacy support
- Wide compatibility
- Microsoft Office
- Presentations
什么是 PPSX？
PPSX is the modern PowerPoint slideshow format that opens directly in presentation mode. It uses the same Open XML structure as PPTX but starts the slideshow automatically.
格式详情
- 全称
- PowerPoint Open XML Slideshow
- 扩展名
- .ppsx
主要特点
- Direct slideshow
- Open XML format
- Auto-play mode
- Modern PowerPoint
PPT 与 PPSX 对比
| 特性 | PPT | PPSX |
|---|---|---|
| 全称 | Microsoft PowerPoint 97-2003 | PowerPoint Open XML Slideshow |
| 扩展名 | .ppt | .ppsx |
| 最适合 | Legacy support | Direct slideshow |
常见问题
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required. Pro users get unlimited conversions and larger file sizes.
Most files convert in under 30 seconds. Larger files may take 1-3 minutes. Processing runs on our servers, so your device stays fast.
Our converter uses optimized settings to preserve quality. Default settings prioritize quality over file size. You can adjust settings for more control.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB with priority processing.
Yes. Our converter is browser-based and works on any device — iPhone, Android, tablet, or desktop. No app or software installation needed.