Instagram 照片调整器 — 免费调整 Instagram 图像大小

方形帖子使用 1080 x 1080，竖版使用 1080 x 1350，横版使用 1080 x 608，限时动态和 Reels 使用 1080 x 1920。我们的预设能精准调整尺寸，让你的照片保持清晰，避免在信息流、网格和限时动态查看器中被意外裁剪。

Upload your photo and select a preset. We maintain aspect ratio and optimize for sharpness at viewing sizes. The Output Format follows the file you upload, and you can switch it to JPEG, which is the usual choice for photos you will post. This workflow helps your content look clean and professional across phones and tablets.

可以。将每张图片调整为相同的宽高比（通常为 1080 x 1350 纵向），并让主体居中并留出安全边距。统一的尺寸能避免幻灯片之间出现突兀的跳动，并提高多图帖子和教程的看完率。

Choose the Profile Picture preset: it crops to your face and shoulders and fills the whole square for you, so the circular crop doesn't cut off important areas. For a highlight cover, keep the subject centered with some padding. JPEG output keeps avatars and covers looking sharp on retina displays.

Yes. You can upload PNG or WebP, and the Output Format follows the file you upload, so a PNG stays a PNG and keeps its transparency. Switch the Output Format to JPEG when you need the most compatible file for a post or story.

是的。处理发生在我们的安全服务器上，并根据我们的安全政策删除上传内容。下载内容没有水印，因此您可以通过适合机构、创作者和小型企业的隐私优先工作流程快速准备帖子、轮播和故事图形。

可以。开启「保持宽高比」，你的整张照片就能完整放进 Instagram 画框，无需裁剪。可选择任意纯色填充色形成整洁的边条，或开启模糊背景选项，让空白区域用你自己图片的柔和模糊来填充。非常适合产品照、全身时尚照以及合影自拍 —— 否则 Instagram 可能会把某个人裁掉。

“质量”滑块（10-100）控制输出的压缩程度——数值越高保留的细节越多但文件越大，数值越低则以牺牲一些清晰度为代价缩小文件。对于大多数 Instagram 帖子，85-95 能让照片在经过 Instagram 自身的再压缩后仍保持清晰，同时上传也很快。

Choose Blur in the Background tab, then use the Blur Intensity slider (5-50) to set how soft the padding around your image looks — low values give a subtle soft-focus edge, high values create a heavily diffused, dreamy backdrop. This slider only appears while Blur is the selected background, since the Color, Gradient, Designs and Photo fills don't use blur.

Yes. With Maintain aspect ratio on, choose Color in the Background tab and a color picker with swatches appears. This gives clean solid bars instead of blur — useful for brand-consistent posts where you want a specific color, not a blurred edge.

可以。无论选择哪种尺寸预设，输出格式下拉菜单都能让你导出为 JPEG、PNG、WebP 或 GIF。工具会根据你上传的文件类型自动选择合理的默认值——GIF 保持 GIF，PNG 保持 PNG——但你可以覆盖它，例如为原本是 PNG 的照片选择 JPEG 以获得更小的文件体积。

对于头像和资料展示等圆形裁切预设，“显示/隐藏安全区”按钮会叠加一个参考线，精确显示 Instagram 的圆形遮罩将裁去哪些部分。在最终确定你的头像前将其打开，这样一旦 Instagram 应用圆形裁切，你的脸部或 logo 就不会在边缘被切掉。

Pick the Profile Picture preset: it crops to your face and shoulders and fills the whole frame, and the aspect-ratio and background padding options are switched off for it. Turn on the safe zone overlay to see the circular crop boundary before you commit, since anything outside the safe-zone circle gets hidden on Instagram. If your subject isn't centered in the photo, crop it first with the Crop Image tool.

This happens when Maintain aspect ratio is turned off — the photo is force-fit to the exact target dimensions instead of being scaled proportionally, which distorts faces and straight lines when the source photo's ratio doesn't match the preset. Turn Maintain aspect ratio back on and choose Blur or Color in the Background tab so the full photo fits inside the frame without warping.

It is only unavailable while a resize is running, and it becomes available again when processing finishes. Choosing Blur does not lock it; the Blur, Color, Gradient, Designs and Photo backgrounds simply apply only while Maintain aspect ratio is on, because turning it off stretches the photo to the target size.

方形帖子尺寸为 1080×1080 像素，竖版帖子为 1080×1350 像素，横版帖子为 1080×608 像素，而 Stories 和 Reels 则采用 1080×1920 像素的竖版比例。选择对应的预设，调整工具会将您的照片精确适配到这些 Instagram 帖子尺寸——智能留白或模糊背景会填补多余空间，而不会裁剪掉任何内容。

Feed posts use the 1:1 square ratio, portrait posts use 4:5 — the tallest format allowed in the feed, so it earns the most screen space — and landscape posts use the wider 1080×608 frame. Stories and Reels use 9:16. Each preset matches one of these Instagram aspect ratios, which gives your upload the best chance of being shown without being cropped when it goes live.

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。

正确的像素大小仅控制文件。该平台仍然决定在提要、预览卡或圆形轮廓蒙版中显示其哪些部分，并且每个表面的裁剪方式都不同。将面孔、徽标和文本保留在画面中间 80% 的范围内，这样作物可以到达的地方就不会出现任何重要的内容，并在发布之前检查应用程序内的预览。

Instagram Resize 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.

否 — Instagram Resize 在桌面和手机上的浏览器中运行。在您看到它是否满足您的需要之前，无需安装任何东西，无需试用，也无需购买许可证。在您实际遇到的文件而不是样本上尝试一下。