Use it right here — already set up for this task

图片调整大小

在线调整图片大小

调整图片为自定义尺寸或社交媒体预设。在浏览器中运行 - 无需上传。

上传图片

点击上传或拖放

PNG、JPG、WebP(最大50MB)

上传图片以开始

关于图片调整大小

我们的免费图片调整大小工具可让您将图片调整为任何自定义尺寸,或从流行的社交媒体预设中选择。非常适合为Instagram、Facebook、Twitter、YouTube等优化图片。

功能：

自定义宽度和高度控制
保持长宽比切换
社交媒体平台快速预设
支持PNG、JPG和WebP格式
完全在浏览器中运行 - 图片不会上传到服务器
完全免费,无需注册或水印

标准与参考资料

最后更新: 2026-03-10

你可能还喜欢

图片压缩

在保持画质的同时减小文件大小。

图片格式转换

在PNG、JPG和WebP格式间转换。

批量图片编辑器

一次性裁剪多张照片,统一长宽比。

给图片添加边框

在线为你的照片添加自定义边框或相框。

Open the full Image Resizer →

Why this matters

LinkedIn’s automatic resizing is conservative and can leave banners blurry or feed images cropped unexpectedly. Pre-sizing avoids both problems.

Step by step

1
Open the resizer
Upload your photo or banner.
2
Pick a LinkedIn preset
Profile (400×400), Banner (1584×396), Post (1200×627), Company logo (300×300).
3
Crop
Adjust framing if needed.
4
Download
Get the perfectly-sized output.
5
Upload to LinkedIn
No surprises.

Frequently asked questions

What are LinkedIn banner dimensions?

1584×396 for personal profile banners; 1128×191 for company pages.

What size is a LinkedIn profile picture?

400×400, displayed as a circle.

What size for LinkedIn post images?

1200×627 (1.91:1 ratio) is recommended for in-feed display.

Will LinkedIn crop my banner?

Yes if the aspect ratio is wrong. Use 1584×396 to match exactly.

Are PNG and JPG both supported?

Yes. PNG is recommended for logos and graphics; JPG for photos.

Is the resizer private?

Yes — runs in-browser, no upload.

Try Image Resizer now

Free, private, no signup. Runs in your browser.

Open Image Resizer →

Resize Images for LinkedIn (Posts, Banners, Profiles)