TLDR
Click Start a post → the Photo icon → select up to 20 images → add a caption → Post. Each image can be up to 5 MB, between 3:1 and 4:5, ideally 1080 px wide. LinkedIn arranges them as a collage based on your first image's shape, and a post can hold images or a link, not both. If your images are slides with text on them, a document carousel will perform better than a photo grid.
How many photos can you post on LinkedIn
Twenty. LinkedIn's help documentation states that a multi-photo post holds a maximum of 20 photos, on desktop and in the mobile app. A lot of the guides ranking for this question still say nine, which was true for a long time and is no longer the case — if your composer stops you earlier, you have hit a file-size limit, not the photo count.
The two limits that actually bite are the 4:5 ceiling and the link rule. A 9:16 vertical image (a Story or TikTok export) exceeds 4:5, so LinkedIn crops it. And the moment you attach images, the URL preview card disappears — the link either lives in the caption as plain text or moves to a comment.
How to post multiple photos on LinkedIn on desktop
The whole flow takes about a minute once the images are ready.
1. Click the Photo icon in the share box
On the LinkedIn home page, click the Photo icon in the share box at the top of the feed (LinkedIn Help's own first step), or click Start a post and then the Photo icon inside the composer — both open the same picker.
2. Select up to 20 images
Click Upload from computer and select the files — hold Cmd on Mac or Ctrl on Windows to pick several at once. You can also drag the files straight into the share box, or paste them. The order you select them in is the order LinkedIn shows them, with the first image controlling the layout (more on that below).
3. Edit before you post
Each image gets a small edit menu: crop, straighten, filters, and alt text. This is your only chance — LinkedIn does not let you edit photos after the post is live. Add alt text while you are here; it takes ten seconds per image and is the accessible thing to do.
4. Click Next, write the caption, and post
Click Next. The post screen opens with the audience dropdown next to your name and the text field. Add your text, then click Post. Three to five lines is plenty when the images carry the message. If the caption needs structure, line breaks and short paragraphs do more than any Unicode trick — our guide to formatting LinkedIn posts covers what survives the "…see more" fold.
Posting multiple photos from the LinkedIn app
1. Tap Post, then the Photo icon
Open the app and tap Post in the upper-right corner — that is the composer button on mobile, per LinkedIn Help. Then tap the Photo icon.
2. Select images from your gallery
Tap the images in the order you want them to appear — up to 20. You can take a new photo with the camera from the same screen.
3. Tap Next, caption, and post
Tap Next in the upper right. On the post screen, check the audience dropdown, write the text, then tap Post. Same limits, same no-edits-after-posting rule as desktop.
How LinkedIn lays out multiple photos
This is the part almost nobody explains, and it decides whether your post looks deliberate or accidental. LinkedIn builds the collage from the first image's orientation:
- First image landscape (wider than 4:3): it sits full-width on top, and the remaining images line up side by side underneath.
- First image portrait or square (4:3 or taller): it fills the left column, and the remaining images stack vertically on the right.
- Exactly two images: they sit side by side and keep their own aspect ratios.
Everything past the visible tiles collapses into a "+N" overlay on the last tile, and tapping any tile opens a full-screen viewer people can page through.
Two practical consequences. First, choose your lead image for its shape as much as its content: a landscape hero gives a magazine-style layout, a portrait hero gives a tall left panel that dominates mobile feeds. Second, the secondary tiles are cropped to fit the grid, so anything important near the edges of images two, three, and four can vanish — keep the subject centered. The same edge-cropping problem applies when you post multiple photos on Instagram, just with a different grid.
Multi-photo post vs a document carousel
LinkedIn has two multi-image formats, and people search for "carousel" when they mean either. They behave differently in the feed:
- Multi-photo post: a collage of up to 20 images that opens into a viewer when tapped. Nothing swipes in the feed itself.
- Document post: a single multi-page PDF that readers swipe through directly in the feed. This is what every "LinkedIn carousel" you have seen actually is.
Use a multi-photo post when the images are the content — event photos, a product from several angles, a team offsite, screenshots of a launch. Real photography looks natural in a collage and awkward stretched across PDF pages.
Use a document carousel when the images are slides — a numbered list, a framework, a step-by-step, anything with text people need to read in order. Each swipe registers as a dwell-time signal, which is why document posts consistently out-reach photo grids for educational content. The slides need to be exported as one PDF at the right LinkedIn carousel size, which is a different pipeline from dropping PNGs into the composer.
There is one more tiebreaker: the link rule. A document post can't carry a URL preview either, but its title field and the PDF pages themselves give you more room to say where to go next.
Photos can't be edited or reordered after posting. LinkedIn's help documentation is explicit about this. A wrong order or a typo baked into an image means deleting the post and losing every reaction and comment it earned. Check the sequence in the composer preview before you hit Post.
Mistakes that make multi-photo posts look amateur
- Mixed aspect ratios. A square, a landscape, and a vertical in one set produce an uneven grid with awkward crops. Export everything at one ratio — 4:5 or 1:1 — before uploading.
- Slides with small text. Secondary tiles render small on phones. If the text isn't readable at thumbnail size, it belongs in a document carousel, not a photo grid.
- Twenty images because you can. Past four visible tiles, everything hides behind a "+N" badge. Ten strong images beat twenty average ones.
- A weak first image. It's the only one shown at full size and it dictates the layout. Lead with the photo you would choose if you could only post one.
- The link in the wrong place. Attaching images kills the link preview. Decide up front whether the post is about the images or the link — trying to do both gets you neither.
Skip the manual work
The manual path for a good-looking multi-photo post: pick a lead image for its shape, crop every other image to the same ratio, resize to 1080 wide, check nothing important sits near the edges, upload in order, write alt text, post. It's fifteen minutes when the photos already exist — and considerably longer when the "photos" are slides you still have to design.
For slide-style content, xcarousel generates the carousel from a topic, URL, or PDF and exports it either way LinkedIn wants it: as individual 1080×1350 PNGs for a multi-photo post (4:5 is exactly the tallest ratio LinkedIn accepts), or as a single PDF for a document carousel. One design, both formats, no re-cropping — which is the difference between a post that looks assembled and one that looks made.