Attach one or more images to your social media posts for visual interest. Images appear in preview when your post is published to your chosen social networks. Images attached in the Composer can be edited with its built-in photo editor. The Composer also supports adding alt text to Twitter images.
In this article:
Attaching an image to a post
Image file requirements
Instagram personal, business
(web, iOS, & Android)
|jpg, jpeg, png|
|File size||3 MB||5 MB||5 MB||5 MB|
|Images per post||4||1||4||1|
|Aspect ratio||n/a||Square, or between 1.91:1 and 4:5||n/a||Pages: Height is scaled to fit a width of 350|
(file size 5MB)
|Appear as still images||Animated||Not supported|
To attach an image in the Composer
- In the Composer, drag and drop files into the Media box or click select a file to upload to attach images or a video to your post.
- Or, click Open Media Library to search free stock images or GIFs to include in your post. Click an image to attach it to your post. Click Free Images, and then select GIPHY to insert an animated GIF in tweets or Facebook Page posts.
Media library apps from the app directory can also be accessed here to easily attach approved media assets to your social posts. Click the Free Images drop-down to access your installed Media Library apps.
- Click Close Media Library in the top-right corner.
- When multiple images are attached, drag-and-drop them within the list to reorder them in your posts.
- Click Edit Image below an image to crop it for a specific social network, add filters and text, or make other adjustments to it. See below
Click the timestamp on your posts in your Hootsuite streams to view them natively.
To attach an image in the legacy composer
- In the compose message box, click Attach media .
- Click Select files to upload, or drag-and-drop file(s) from your desktop.
- Select the image(s), and then click Open.
Notes on attaching images:
- Twitter: Due to an API limitation, images attached to Twitter direct messages will not be sent with the message.
- Instagram: Carousels and stories are not supported with direct publishing, but stories can be posted to using the mobile notification workflow.
- Instagram: When sharing an image that isn't square, it must have an aspect ratio between 1.91:1 (landscape) and 4:5 (portrait). Put another way, between 0.8 and 1.91 (just divide your image pixel width by height to see if it fits). You can make adjustments to your images before uploading them to Hootsuite, or, edit them easily in the Composer. Click Edit Image and then select from one of the crop sizes specific to Instagram.
- Instagram: When direct publishing to Instagram, ensure .png files do not have a transparent background, as this can result in image distortion.
- LinkedIn: Images reserve 21 characters in LinkedIn posts.
- GIF files: Animated GIFs are supported for Twitter and Facebook Pages. They display as still images on Instagram.
- Additional format requirements:
- Resolution between 120 x 120px and 1280 x 1080px
- Number of frames less than or equal to 350
- Number of pixels less than or equal to 300 million (width x height x frames)
Editing an image
Edit images when composing a new post in the Composer, or when editing scheduled or drafted content that is already in your publishing calendar.
To edit an image, click Edit Image below it. Then make your edits with the five editing options in the photo editor. At any time during the editing process, you can Reset Default or click the back arrow to undo a change. When you are happy with your photo, click Save in the bottom-right corner to exit the photo editor.
- Select an auto-crop aspect ratio for the social network of your choice, or scroll to Common Aspect Ratios and edit for a custom width and height.
Instagram direct publishing requires that your photo have an aspect ratio between 1.91:1 and 4:5. Use the Instagram-specific square, landscape, or portrait crop options.
- Drag the cropping window to select the portion of the photo that you want to keep.
- Under the image preview, click to mirror, and to rotate.
Filters - Select the filter of your choice and use the sliding bar to adjust intensity.
Adjust - Use the sliding bars to adjust Basic or Refined photo settings.
Focus - Select your focus style. Click and drag the orientation guides to adjust size, direction, and radius.
- Use the left-hand formatting options to adjust font, orientation, and colour.
- Click on the text box orientation points to rotate.
- Duplicate or delete a text box at any time.
Adding alt text to Twitter images
In the new Composer, include alternative (alt) text with images published to Twitter. Alt text describes the contents of an image, to make it accessible for all users. The alt text will not be visible once applied, but will be detected by screen readers and display in browsers where images are turned off. Alt text is not supported with animated GIFs or videos.
Learn more about how to write alt text and web accessibility guidelines.
To include alt text
- In the Composer, click Select social networks and select a Twitter profile.
- Under Media, click select a file to upload, or click Open Media Library and select one or more images to attach to the tweet.
- Below the image(s), click Edit image details.
- Enter the alt text description of the image, to a maximum of 420 characters, and then click Apply.
Uploading photos to Facebook
When images are attached to a Facebook Page post, they get uploaded to the Timeline Photos album by default. Uploading multiple images to the Timeline results in one post containing all the images.
(Facebook will create a Hootsuite Photos album if you've never uploaded photos to your Timeline before)
You can also select a different photo album to upload images to. Click Timeline Photos below the image thumbnails and then select a different album, or select New album to create a new one.
When posting to Facebook groups, there is no option to select a photo album, so each image will be posted separately.
Adjusting the rotation of an image
An image uploaded to Hootsuite may appear rotated based on embedded orientation tags. Orientation tags are commonly assigned when taking pictures on mobile devices. These pictures can appear correct when viewed on your computer or mobile device, but will appear rotated when uploaded to Hootsuite.
To change the rotation of a photo
- Open the image in your default photo application, such as Preview for Mac or Windows Photo Viewer for PC.
- Rotate the image until it appears to be oriented correctly.
- Save the image as a new file to reassign the orientation tags.
- Upload the new file to Hootsuite.
If you use a Mac computer, you can also review the embedded orientation tag assigned to an image to confirm the expected rotation within Hootsuite. There are 8 possible orientation tags, where orientation 1 is “normal”.
- Open the photo in question in the default Preview application.
- Click on the Tools menu, and choose Show Inspector from the drop-down menu.
- Navigate to the TIFF tab, and review the assigned orientation.
To view orientation tags on a PC, you will have to use a secondary piece of photo editing or meta tag software.