How to post a video on LinkedIn: specs, captions and vertical video

You can post a video from the share box at the top of your LinkedIn homepage, in a Group, or on a LinkedIn Page you manage.

On desktop:

1. Click Video in the share box at the top of your homepage, or click Start a post and then the media icon. You can also drag the file straight into the share box.
2. Click Upload from computer and choose the video.
3. Set a Video thumbnail and Captions (both below), then click Next.
4. Click the dropdown next to your name to choose who can see the post and who can comment.
5. Write the post's text, up to 3,000 characters, and click Post. To post later instead, click the clock icon and pick a date and time.

In the LinkedIn app:

1. Tap Post in the navigation bar. If you manage a Page, tap your name to choose whether to post as yourself or the Page.
2. Tap the video or media icon, and record a video or pick one from your phone's gallery.
3. Trim it, add text or stickers if you like, and tap Captions to turn on auto captions. Tap Next.
4. Choose who can see and comment on it, write the text and tap Post.

Adding a thumbnail. On desktop, after the video uploads, select Video thumbnail and upload an image. LinkedIn's steps for the app don't include a thumbnail option, so upload from a computer when the thumbnail matters. Use a frame where the speaker's face and a few words of the point are clear. LinkedIn's specs for video ads ask for a JPG or PNG of up to 2 MB at the video's own shape and size, which is a good rule for posts too.

A few things that catch people out:

• One video per post. LinkedIn doesn't take several videos in one post, or animated GIFs.
• On an iPhone, stay in the app until the upload finishes, or it can stall. Android keeps uploading in the background. Videos stored in iCloud have to be saved to the phone before the app can upload them.
• Drafts don't edit video. Once a video is saved in a draft, you can't change it: delete it and upload it again.

These are LinkedIn's requirements for a video in a post, from its Help Center, with what to use for a clip:

Keep the edges clear. LinkedIn asks you to keep key elements, text and logos away from the top, bottom and sides of the video, where its buttons and text can cover them. Captions placed a little below the middle stay clear.

To check a file before you upload it, the free video size checker reads its shape, size, length and frame rate in your browser. It grades them for TikTok, Reels and Shorts, so compare the numbers with the table above for LinkedIn. To change the shape, crop video cuts any video to 9:16, 1:1, 4:5 or a shape you drag, and the video compressor brings a big file down to size.

Video ads are different. If you're running a video as an ad, LinkedIn's ad specs apply instead: MP4 only, up to 500 MB and 30 minutes, in 16:9, 1:1, 4:5 or 9:16, with captions as an SRT file. For ads, LinkedIn recommends 15 to 30 seconds.

A video in a post can run up to 15 minutes, and has to be at least 3 seconds long from desktop or 2 seconds from the app. That's the limit, not the target. LinkedIn's own advice is much shorter:

• Its guide to posting for nonprofits says many people won't watch for the full 15 minutes, and to aim for 30 to 60 seconds, which it says tends to perform better than longer videos.
• Its marketing blog (June 2025) says the best length is usually much shorter than the maximum, that videos meant for deeper engagement should ideally stay under 2 minutes, and that senior audiences in particular don't want to watch more than three.

For a clip from a webinar, podcast or talk, 30 to 90 seconds is enough to make one point: open on it, back it up, stop. If a video runs under 30 seconds, LinkedIn loops it, and viewers have no setting to turn that off, so a short clip that ends on its strongest line plays that line again.

Have a full recording people should see? Post a clip, and link the full version in the post's text (more on links below). For how long clips should be on the other apps, see how long a short video should be.

Yes, you can post vertical video on LinkedIn. A 9:16 video sits inside the 1:2.4 to 2.4:1 range, so a 1080 × 1920 clip uploads as it is, and the same file works on TikTok, Reels and Shorts.

LinkedIn has also built a full-screen vertical video experience. Here's what its Help Center says exists now:

• In the app, tapping a video in your feed opens a full-screen vertical player: swipe up for more videos, and react, comment or share from the player. There's a Video tab in the navigation bar, and a Videos for you carousel in the feed.
• On desktop, a full-screen icon on a video opens it full screen, but the video tab and carousel aren't there.
• Not everyone has it yet: LinkedIn says full-screen video, the video tab and the carousel may not be available to all members.

You can't post straight to the video feed or tab. LinkedIn says any video you post may be eligible to appear there, based on relevance and performance, and that there's no option to choose it. When someone engages with a video there, they can follow you and open a grid of your other videos, which then play one after another. A run of clips on one topic gives them something to keep watching.

How far a video travels depends, LinkedIn says, on relevance, quality and member feedback. It describes quality as videos that are clear and easy to understand, professional in tone, relevant to the people they're for, and helpful or actionable. Creators whose videos consistently get strong negative feedback may have them shown less to people who don't follow them.

To turn a wide recording into a vertical one, the free video cropper handles a shot where the speaker stays put, and the vertical video converter crops or fits a 16:9 video into 1080 × 1920.

LinkedIn says some videos play automatically without sound as people scroll their feed, and members can turn autoplay off or limit it to Wi-Fi. Captions are how a muted viewer follows what you say, and how someone who can't hear it does. You have three ways to add them:

1. LinkedIn's auto captions. After choosing the video, turn on Add auto captions (on desktop, in the editor; in the app, behind the Captions icon at the bottom). Turn on the review option too, so you can check them before anyone sees them. Once they're ready, a banner under your post asks you to review and approve them. They work in English, Spanish, Portuguese, French, German, Italian, Indonesian, Turkish, Arabic, Dutch, for every member and Page. To fix a word later, open the post's More menu and choose Edit captions.
2. Your own SRT file, on desktop: select Captions after the upload and add the caption file. LinkedIn asks for SRT, so convert a VTT file first with the free SRT to VTT converter, which converts both ways. To make an SRT from the video itself, the auto caption generator transcribes it in your browser and lets you fix each line before you download it.
3. Captions burned into the video. They're part of the picture, so they show on every screen and in the style you chose, whether or not a viewer has LinkedIn's captions turned on. This is how clips made for TikTok, Reels and Shorts come.

LinkedIn's own captions are closed captions: viewers can show or hide them with the captions icon on the video, and LinkedIn only shows them on videos uploaded to it. Whichever way you go, check product names, people's names, acronyms and numbers: speech recognition gets those wrong most. For what an SRT file holds, see what an SRT file is.

You can paste a YouTube link into a post instead of uploading the file, but it isn't the same post. Here's what LinkedIn says about each:

• Autoplay. “Unlike embedded videos, such as YouTube links, native videos autoplay on members' LinkedIn feeds,” in LinkedIn's guide for nonprofits. A link shows a preview image taken from the page being shared.
• Captions. LinkedIn's captions appear on videos uploaded directly to LinkedIn.
• The video feed. LinkedIn says any video you post may be picked for its full-screen video feed, tab and carousel.

LinkedIn doesn't publish numbers comparing the reach of the two, so treat any figure you see as someone else's test. The practical answer: upload a clip, and put the link to the full video in the post's text. The clip plays in the feed; the link is there for anyone who wants the whole thing.

Sharing a moment of a YouTube video rather than the whole thing? The free YouTube clip maker makes a link that starts and ends where you choose.

Founders, coaches and B2B teams already have hours of video: webinars, podcast episodes, conference talks, demos, sales calls cleared for sharing. The full recording rarely works as a post. A short clip that makes one point does. Look for these moments:

• Open on the point. Cut “great question”, the throat-clearing and the “so, yeah”. See short video hooks.
• One idea per clip. If the speaker moves on to a second point, end the clip and make the second point its own post.
• Lose references to the room. “As you can see on this slide” makes no sense out of context.
• Write the post too. The first line says the idea in words, for people who scroll past the video; the rest gives the context and a link to the full recording.
• Spread them out. One webinar or episode can give a few clips a week for weeks.

By hand, each clip means finding the moment in the recording, trimming it with the video trimmer, cropping it to 9:16 with the speaker in frame, captioning it with the auto caption generator and fixing the words, and maybe a title with add text to video. The guides to turning a webinar into clips, clipping podcasts and repurposing video content go through it step by step, with a posting plan.

Finding the moments, cutting them, framing the speaker and captioning every word is the slow part. Clyper does those from the recording:

1. Upload the recording (MP4, MOV, WebM or MKV, up to 4 GB and 4 hours), or paste its YouTube link, public or unlisted.
2. Choose how many clips, up to one for every 2 minutes of video and 30 in all, or leave it on Auto.
3. Clyper reads the transcript, picks moments that make sense on their own, cuts each on whole sentences and scores its hook, so you post the strongest first.
4. It frames each clip 9:16 on whoever's talking (auto reframe), switching when the speaker changes. Where a recording shows a shared screen with the speaker in a small box in a corner, it puts the speaker on top and the screen below. Then it captions every word with animated captions, in 50+ languages.
5. Check each clip in the editor: fix a name, trim or extend either end, and download 1080 × 1920 MP4s with no watermark.

Then post them with the steps at the top, with auto captions off, since the captions are already in the video. A credit is a minute of video: an hour-long webinar uses 60 credits and can give up to 30 clips. Clyper doesn't post to LinkedIn or schedule, and it makes vertical clips only, not square or landscape versions. If you want a 1:1 or 4:5 cut of a clip, crop the downloaded file with crop video.