How-to guide

How to Post a Carousel (Document Post) on LinkedIn

Last updated: 2026-05-19 · LinkedIn · By SocialKit Team

LinkedIn carousels live as PDF document posts — the only format that lets connections swipe through your slides in the feed. This guide walks you from designing the slides and building the PDF to uploading and planning your post time with SocialKit, so every carousel lands when your audience is actually active.

Before you start

You will need a SocialKit account — the 7-day free trial (€0.00 due today) is plenty to try the carousel workflow. Connect your LinkedIn personal profile or Company Page from the Accounts screen first; as of June 2026, SocialKit supports both.

For the carousel itself, prepare your slides as a multi-page PDF. Each slide should be 1:1 (square) or 4:5 portrait — LinkedIn renders both well in the feed, though exact display depends on the viewer’s device. Keep the PDF under 300 pages and around 100 MB; LinkedIn enforces its own file limits, which can change, so verify current limits in LinkedIn’s Help Centre before you upload.

Step by step

  1. Design your carousel slides

    Build each slide at a consistent aspect ratio — 1080 × 1080 px (1:1) or 1080 × 1350 px (4:5) both work well, as of June 2026. Use a tool like Canva, Figma, or Google Slides, then export the whole deck as a single multi-page PDF. Keep text large enough to read without zooming; LinkedIn renders PDFs inline at a relatively small size on mobile.

    Tip: Start with a hook slide whose headline is visible in the feed thumbnail before anyone taps "view document." The first frame is doing most of the heavy lifting — spend extra time on it.

  2. Split or check your PDF with the free carousel splitter

    Run the PDF through SocialKit's free carousel splitter tool to preview each individual page and catch any layout issues before uploading. The tool also lets you export individual slides as images if you later want to repurpose slides for other networks. No account needed to use the tool.

    Tip: Aim for 8–15 slides per carousel. LinkedIn allows up to around 300 pages, but most high-performing B2B carousels that users share internally land in the 8–12 slide range — brevity keeps swipe-through rates up.

  3. Connect your LinkedIn account or Company Page in SocialKit

    In SocialKit, go to Accounts (or the connections area) and add your LinkedIn profile or Page. You will be redirected to LinkedIn's own authorization screen — sign in there and grant the requested permissions. As of June 2026, connecting a Company Page requires that you are a Page admin. Personal profiles and Company Pages are both connectable; choose whichever you post from.

    Tip: Connecting both a personal profile and a Company Page counts as two of your account slots. On the Solo plan you have 15 slots, on Team you have 30, so you can manage multiple brands easily.

  4. Compose the LinkedIn post in SocialKit

    Open the composer in SocialKit and select your LinkedIn account. Write your post text — LinkedIn supports up to 3,000 characters in a document post, as of June 2026, though the feed truncates previews at roughly 140 characters on mobile (around 210 on desktop) before a "see more" link. Add relevant hashtags (three to five focused ones typically outperform a long tail of vague tags, though this is community-reported rather than officially confirmed). Upload your PDF directly in the composer.

    Tip: Front-load your hook into the first ~140 characters (mobile) so it lands before the "see more" break on every device — desktop shows a bit more (around 210). A strong question or a clear outcome statement ("Here is how I grew 3× faster by doing X") performs best in B2B feeds as of June 2026.

  5. Pick the best time to post and schedule

    Check SocialKit's LinkedIn best-time data or the heatmap tool for your account's engagement windows before locking in a time. As a baseline, Tuesday through Thursday mid-morning tends to see stronger B2B engagement, but your own analytics are more reliable than any blanket figure — check them first. Set the date and time in the scheduler, then click Schedule.

    Tip: If you are posting to both a personal profile and a Company Page, stagger the times by at least two hours. Posting the same carousel at the exact same moment on two accounts can look spammy to your connections who follow both.

  6. Verify the scheduled post and confirm publish method

    After scheduling, check the post in SocialKit's calendar view. Confirm the PDF attachment is shown and the account is correct. As of June 2026, SocialKit indicates on the post card whether it will auto-publish at the scheduled time or send you a mobile reminder to publish manually — LinkedIn document post scheduling behavior depends on what the LinkedIn API permits at the time, so check that indicator before you close the calendar.

  7. Monitor early engagement and reply to comments

    Once the post goes live, the first 60–90 minutes of engagement (likes, comments, reposts) can influence how broadly LinkedIn distributes the carousel in the feed — this is community-reported and not an officially documented algorithm rule, but it is widely observed. Check SocialKit's analytics tab for impressions and clicks, and reply to comments from within LinkedIn to keep the conversation going.

    Tip: Save your strongest carousel PDFs to SocialKit's content library so you can repurpose or reshare them later without having to rebuild the asset from scratch.

Best practices

  • Open with an unmissable cover slide: the thumbnail LinkedIn displays in the feed is your only chance to earn a tap before the viewer scrolls past, so treat it like an ad headline.
  • Keep each slide to one idea — LinkedIn carousels that try to pack too much text per slide lose readers quickly on mobile where the PDF renders small.
  • Add a clear call-to-action on the final slide (comment a word, visit a link, save this, follow for more) rather than ending abruptly; carousels without a CTA slide typically generate fewer comments.
  • Use consistent branding across all slides — matching fonts, colours, and a small logo watermark protect your content when slides get screenshot and reshared without attribution.
  • Schedule carousels when your audience is online; the /best-time-to-post/linkedin heatmap gives you a data-backed starting window, though your own Page analytics are the best calibration.
  • After posting, pin the carousel to the top of your Company Page's feed if it is a flagship piece of content — pinned posts remain visible as of June 2026 and extend the carousel's reach window beyond the initial feed burst.

Good to know

LinkedIn carousels are PDF document posts — not a separate format

LinkedIn deprecated its native multi-image carousel creator in favour of the document post format. As of June 2026, the way to publish a swipeable carousel on LinkedIn is to upload a multi-page PDF as a "document post." The resulting in-feed experience — swipeable slides — looks the same as the old carousel format to viewers, but the upload flow is via the document attachment path, not a dedicated carousel button.

Auto-publish vs. reminder — verify before scheduling

As of June 2026, whether SocialKit auto-publishes a LinkedIn document post or sends you a mobile reminder depends on the current state of LinkedIn's API and your account type. SocialKit shows you which mode will apply when you schedule — check that indicator. If a reminder is required, you will receive a push notification at the scheduled time to open LinkedIn and complete the upload yourself. Personal profiles may behave differently from Company Pages; connect both and test with a low-stakes post first.

Do it in SocialKit

Write the post, attach your PDF, pick your best time, and schedule your LinkedIn carousel in one composer — then watch analytics track impressions and clicks. Start the 7-day free trial with €0.00 due today.

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