What is the best aspect ratio for LinkedIn PDF Carousels?

We strongly recommend 4:5 vertical portrait dimensions (1080x1350px) because it occupies maximum real estate on mobile device feeds.

What formats does LinkedIn support for Document slide posts?

LinkedIn supports PDF, PPT, PPTX, DOC, and DOCX formats up to 100MB and 300 pages max.

What exact PDF page size/crop settings should I use for LinkedIn document carousel slides so they don’t get center-cropped, and how do I validate it programmatically?

For LinkedIn document-style carousel pages, target a content frame with a strict 1:1 (square) or 4:5 (vertical) aspect, then ensure the PDF page CropBox matches that same aspect with no extra whitespace. Programmatically validate by rasterizing each page to 1080px (square) or 1080x1350px (4:5) and confirming the detected non-background bounding box stays within the frame margins—use a threshold of ≥96% coverage of width and height with ≤1px differences in the computed aspect ratio. If any page falls below 96% coverage or deviates by more than ±0.01 in aspect ratio, re-export with normalized crop boxes.

How can I prevent LinkedIn from truncating small text in a carousel PDF—what minimum font-size and safe-area rules should my aspect-ratio checker enforce?

LinkedIn tends to downscale PDF-rendered slide content differently depending on the chosen aspect, so enforce a safe-area and minimum legibility threshold. For 1:1, require key text to remain inside at least a 7% inset on all sides (a 1080px canvas implies ~75px padding), and for 4:5 enforce at least an 8% inset (1080x1350 implies ~108px padding) because vertical feeds compress more aggressively. Additionally, flag slides where the smallest estimated font height would rasterize below 28px at 1080px reference width—your checker should compute expected text height from bounding boxes and warn when it drops under 28px.

🇨🇳 中文 (Simplified)

⚡ LinkedIn Utility

LinkedIn 双卡轮播图帖暨 PDF 超声扫描检验官

于正式发表至领英并转化为互动卡片之夕，为 1:1 正方视界以及 4:5 立体纵带画风洗净画质流离的尴尬并拒绝模糊的厄运。

📐 当前画布输出分辨率: 1080 x 1080 px

上传图片进行缩放与裁剪

📁 选择图片文件

Select Target Aspect Ratio:

🎨

尚未上传图片

请在上方上传图片。我们将按照平台像素标准自动精准裁切。

⚡ 分享此工具:

𝕏 in f P LINE VK 博 ✉️

Sponsored • Advertisement Placement Horizontal Leaderboard Shield (min-h: 250px)

💡 2026 算法专业技巧

专业技巧（LinkedIn）：请在前半段（约140字符）放置最重要的的核心看点，保证移动端完整展示。

🛠️ 创作者故障排除指南

❓ 为什么我的内容在 LinkedIn 移动端与桌面端的截断位置不同？

💡 LinkedIn 移动端采用更大字号与更窄视口，会在约 140 字符处截断。请在发布前使用本工具进行实时对比与格式调整。

🚀 使用指南 LinkedIn 双卡轮播图帖暨 PDF 超声扫描检验官

01
在下方交互式编辑器中粘贴或输入您的内容。
02
实时查看预览卡片，校验字符截断与 UI 安全区。
03
一键调整格式、段落间距或像素级裁剪。

🔄 推荐工作流下一步

推荐工作流 #1

LinkedIn 推文智能排版师暨折损折断终界测试舱

实景探访领英在移动设备的极限 (~140 字符) 及桌面环境 (~210 字符) 下何时拉下『...查看更多』幕帘。一指美化呼吸感顿挫排版。

继续工作流 → →

推荐工作流 #2

LinkedIn 私人职业名片之全幅横幅闪速裁片室

分厘不差切入官方首肯至圣的 1584x396px 天赋图景，高深规避电脑抑或小机显示下个人光辉圆头无心阻隔品牌精髓及联系线索的尴尬。

探索工具 → →

💡 常见问题解答

Q: LinkedIn 的最佳字符长度与尺寸规范是什么？

基于 2026 年最新算法，建议将核心前言控制在移动端前首屏显示范围内，以最大化信息曝光与点击率。