- On step 1 choose Photo / video and Feed post.
- On step 2 select several photos at once in the file window, or add one at a time with the + Add Photo card.
- The first photo is the cover (marked Slide #1). Drag the cards, or use the ⬅️ ➡️ arrows, to change the order. Use the remove button on a card to drop it.
- Write the caption as usual. It is shared by the whole carousel.
| Platform | Maximum photos in a carousel |
|---|---|
| 10 | |
| 10 | |
| Threads | 20 |
| TikTok | 35 (shown as a photo post) |
| LinkedIn (profile and Page) | 20 |
| X | 4 |
| YouTube | Not supported |
Postalu allows up to 35 photos on one slideshow, TikTok's maximum. If you have more photos than a platform allows, you see Instagram supports up to 10 images per slideshow. (naming the platform). Untick that platform on the Review step, or remove photos.
- A carousel can only hold photos. Adding a video shows Slideshow carousels only support photos. Videos must be uploaded individually as a Reel or Video.
- Select at least 2 images: Select at least 2 images for a slideshow.
- If you pick more than 35, only the first 35 are kept.
- A Story cannot be a carousel.
- A platform that does not support slideshows is disabled on the Review step, with the tooltip does not support multi-image slideshow posts.
Read next
- Photo and video requirements, and why a file is blocked or warned about Accepted formats, the 500 MB limit, the length and shape checks, and every message you can see.
- Post types: photo or video, text, link, poll and Stories What each type is, which platforms take it, and its limits.
- What each platform supports Photo, video, carousel, Story, first comment and text limits for every platform side by side.