LinkedIn topic
LinkedIn Posting Rules: Limits, Scheduling and Video
Posting on LinkedIn starts in the share box at the top of the homepage, and every post type has its own limits. This topic gathers what LinkedIn Help and LinkedIn's developer documents say about post length, scheduling, polls, documents, video and the Post proofreader. Four guides in this topic are live. One covers the LinkedIn character limit, How to Post on LinkedIn gives the posting steps, How to Schedule LinkedIn Posts gives the scheduling steps and LinkedIn Video lists the video limits and upload steps. Four more are planned. They cover writing a post, carousels, polls and hashtags. We have not posted from a test account ourselves, so the facts below come from LinkedIn and two outside tools.
Posting Steps in Brief
LinkedIn Help puts the steps in four moves. Click Start a post, set who sees it and who comments, add your text or media, then click Post. Our full posting guide covers the mobile steps, the photo and link rules and what you can edit afterwards.
A draft can be saved and edited later, including from another device. If a post goes past 3,000 characters, LinkedIn Help points you to its Publishing Platform for an article. LinkedIn can also limit how many posts a member makes in a set time. A member who hits a limit can verify the profile or try later.
Post on LinkedIn: Character Limit
LinkedIn Help says a post can have up to 3,000 characters. Every other limit, from the connection note to the headline and comment, sits in our guide to the LinkedIn character limit. It marks which numbers LinkedIn confirms and which come from outside tools.
Post on LinkedIn: Scheduling
LinkedIn Help lets you schedule from the clock icon in the post window. The rules below come from two Help articles, and our full scheduling guide adds the mobile steps and how to edit or delete.
| Item | Personal profile | Company profile |
|---|---|---|
| Who can schedule | Any member | Super admin or content admin |
| Range | 10 minutes to 3 months ahead | 1 hour to 3 months ahead |
| Not supported | Events and jobs | Events, multiple photos, reshares, polls, jobs and service posts |
Scheduled times convert to UTC from your device time zone. You can view, edit, reschedule or delete a scheduled post. A scheduled company post cannot be promoted in Campaign Manager until it is published.
Post on LinkedIn: Polls and Documents
LinkedIn Help says a poll has two to four options and a default length of one week. LinkedIn's developer document lists 1, 3, 7 and 14 days, and that document covers the API and not the app. It also says poll content cannot change after creation.
The developer document for documents sets a 100 MB limit and 300 slides or sheets. It accepts PPT, PPTX, DOC, DOCX and PDF files. LinkedIn Help lists no document limit in the articles we read.
Post on LinkedIn: Video
Our full video guide now lists the post rules from LinkedIn Help. The ad rules sit in LinkedIn Ads Formats and Setup. LinkedIn's developer document, updated 2 March 2026, lists 3 seconds to 30 minutes, 75 KB to 500 MB and MP4. LinkedIn Help gives 15 minutes and 5 GB for a video post, so we follow LinkedIn Help. The developer document also states a 5 GB maximum in one field, so its numbers conflict. Tella, an outside tool, gave 10 minutes and 5 GB in 2024 with no LinkedIn source.
Post Proofreader and AI
Post proofreader is a Premium tool, says LinkedIn Help in an article last updated about three weeks before 25 October 2026. It edits what you write and does not write a post for you. It supports English drafts only, and Premium Career and Premium Business members can use it.
| Option | What it does |
|---|---|
| Review | Fixes spelling, grammar and punctuation |
| Shorten | Makes the post more concise |
| Clarify | Makes the post easier to read |
Changes show inline and nothing applies until you accept it. LinkedIn also says that excessive posting or an automation tool can limit the reach of your posts. We name no third party AI tool here, because LinkedIn Help does not name one.
What is Still Unconfirmed
LinkedIn Help gave no limit for headlines or comments, so those numbers come from outside tools. LinkedIn Help also gave no document limit and no video limit for regular posts. The developer documents describe the API. Check the post window in your own account before you rely on any limit.
Where This Topic Fits
This topic sits inside our LinkedIn section, next to LinkedIn Analytics and Growth and LinkedIn Comments and Moderation Tools. A guide appears here the day it goes live and is marked Tested or Checked, as our editorial policy explains. Changes are logged on our change log. Namrata Arora edits this section. To look up a term, use the social media glossary or SMTwist search.
Sources: LinkedIn Help on posting, LinkedIn Help on scheduling posts, LinkedIn Help on scheduling company posts, LinkedIn Help on polls, LinkedIn Help on Post proofreader, Microsoft Learn on the Poll Post API, Microsoft Learn on the Documents API, Microsoft Learn on the Videos API, AuthoredUp on the character limit, Eden on character limits and Tella on video specs.
Published Entries
FAQ
What is the LinkedIn character limit for a post?
LinkedIn Help says a post can have up to 3,000 characters. A longer text can go in an article through LinkedIn's Publishing Platform.
How far ahead can you schedule a LinkedIn post?
LinkedIn Help says a personal post can be scheduled from 10 minutes to 3 months ahead. For a company profile the range is from one hour to three months.
Can LinkedIn write a post for you?
LinkedIn Help describes Post proofreader, a Premium tool that edits your draft instead of writing one. It works for Premium Career and Premium Business members and supports English only.