The Media Composer makes on-brand images and carousels for your posts, right in reelport.io. Open Media and click Designs, or click Design one in a post's media tray to design straight into that post. Finished designs land in Media.
1. Start a design
Under New design, pick a format:
| Format | Size |
|---|---|
| Instagram post | 1080 × 1350 (4:5) |
| Instagram grid post | 1080 × 1440 (3:4) |
| Square post | 1080 × 1080 |
| Story / Reel cover, TikTok photo / cover | 1080 × 1920 (9:16) |
| LinkedIn document (PDF) | 1080 × 1350 |
| Pinterest pin | 1000 × 1500 (2:3) |
| YouTube thumbnail | 1280 × 720 |
| X / Bluesky / Mastodon | 1600 × 900 |
| LinkedIn / Facebook link | 1200 × 628 |
Your designs lists what you made. Deleting a design keeps the files you exported to Media.
2. The editor
The rail on the left has six tabs:
- Templates: over a hundred layouts (announcements, launches, sales, quotes, testimonials, before & after, tips, how-to, events, hiring, seasonal and more) and carousels. They use your brand colours and fonts and fit any format. Interactive templates ask a few questions and lay themselves out.
- Elements: shapes, lines, photo frames, badges, call-to-action buttons, icons and story stickers.
- Text: Add a heading, Add a subheading, Add body text, with highlight, outline and shadow styles. Fonts come from about 2,000 families on Bunny Fonts (an EU Google Fonts mirror without cookies).
- Photos: Upload a photo or pick one from Media. Imports from Canva, Google Drive, Dropbox and stock photos go to Media first. Adjust exposure and contrast, add a filter, or Remove background (one image credit).
- Brand: your brand kit colours, Add logo, Add as watermark and Apply brand fonts to this design. Set these up in the brand kit.
- Layers: show, hide and lock each layer.
Safe zones (key S) shows where each app covers or crops the picture.
Carousels
Add slide, Duplicate slide, Delete slide and the arrows build a carousel of up to 20 slides. On Free a design has one slide; carousels need Creator.
Magic resize
Magic resize to other formats copies the design into other sizes, each laid out again. Check every copy before you post it. Needs Creator.
Saving
Designs save themselves a moment after each change; the top bar shows Saved. ⌘S saves at once. Pro and Agency can Save this design as a team template for everyone on the team.
3. Use it in a post
Click Use in post (or Add to post when you came from the composer). The slides are saved to Media and Open in composer starts a post with them attached, in order. Tick Draft a caption from the slides or Write alt text for each slide to let AI help (one AI credit each, from Creator).
To download instead, open Export: PNG, JPG, WebP or PDF (the default for LinkedIn documents), at 1× or 2×, all slides or one. Save to Media keeps a copy in Media.
Keyboard shortcuts
Press ? in the editor for the full list.
| Keys | Does |
|---|---|
⌘Z / ⇧⌘Z |
Undo / redo |
⌘D |
Duplicate |
⌫ |
Delete |
⌘G / ⇧⌘G |
Group / ungroup |
⌘] / ⌘[ |
Forward / backward (with ⇧: to front / back) |
| Arrow keys | Nudge (with ⇧: 10 times as far) |
T |
Add a heading |
S |
Safe zones |
Hold ⌥ |
Drag without snapping |
Plans
| Free | Creator | Pro | Agency | |
|---|---|---|---|---|
| Slides per design | 1 | 20 | 20 | 20 |
| Image credits a month (remove background) | 0 | 50 | 200 | 500 |
| Team templates | No | No | Yes | Yes |