AI 人像换背景

是的 - Pixoate 支持批处理和批量处理。切换到批处理模式，在 Premium 上添加最多 60 张照片，在 Pro 上添加最多 200 张照片，设置一次选项，然后在下载单个 ZIP 之前，每张照片都会使用相同的设置进行处理。批量处理是一项高级功能；输出使用与单一模式相同的质量和设置。

是的 - 通过批量处理，您只需配置一次设置，它们就会应用到批次中的每个项目 - Premium 上最多 60 张照片，Pro 上最多 200 张照片。无需对每个项目重复设置，临时上传和生成的文件将被安全处理并自动删除。

几乎总是三件事之一。文件超过 20 MB 免费上传限制 - Premium 需要 50 MB，Pro 需要 120 MB。该工具不接受该格式，因此请检查上传面板上显示的列表。或者该文件实际上并不是其名称所示的格式：重命名文件不会更改其中的内容，这就是看起来有效的图像被拒绝的原因。

Start with a sharp original and select the intended preset. Use Custom instructions to name the change and the details to preserve. Regenerate, then compare the subject, labels, edges and surrounding detail against the source before using the result.

AI Portrait Background Changer supports free standard use within the published processing allowances. Free downloads are clean — no watermark. No signup is required for standard tool use. Photo effects and AI edits have a web-size limit on Free, with the original-resolution result available through Premium or one credit. Crop, resize, rotate, compress and convert stay full size. Premium supports batches of up to 60 files, with the applicable plan limits shown before processing.

No — AI Portrait Background Changer runs in the browser on desktop and phone. There is nothing to install, no trial to start, and no license to buy before you can see whether it does what you need. Try it on the file you are actually stuck with rather than a sample.