Media Attachments Guide

Social Media Management supports a wide variety of media attachments for Facebook, Instagram, Twitter, LinkedIn, and TikTok. By following the file attachment guidelines for each social network, your media content will look and sound optimal on any device.

Please bear in mind that Social Media Management will attempt to analyze image files and warn in advance if they exceed recommended sizing or ratio. However, it may not be possible to display a warning in all instances. In addition, you will not receive advanced warning for video files, GIFs, or link thumbnails.


Facebook

Images and GIFs

File type:
JPG, JPEG, PNG, TIFF, GIF. For Ads, only JPG, JPEG, and PNG are supported.
File properties:
File size:
Up to 25 MB, but we recommend up to 4 MB. Up to 1 MB for PNGs. Up to 30 MB for Ads.
Color profile:
sRGB or RGB.
Image size:
Landscape:
1200 x 628 pixels (1.91:1 aspect ratio).
Portrait:
1200 x 1800 pixels (2:3 aspect ratio).
Square:
1200 x 1200 pixels (1:1 aspect ratio).
Story:
1080 x 1920 pixels (9:16 aspect ratio).

Facebook recommends uploading images up to 4 MB in size. For PNGs, they recommend up to 1 MB. All PNG files larger than 1 MB may look pixelated. Facebook removes all location data from images.

Video

File type:
3g2, 3gp, 3gpp, x-ms-asf, x-msvideo, msvideo, avi, dat, divx, dv, f4v, x-flv, m2ts, x-m4v, x-matroska, mod, quicktime (mov), mp4, mpe, mpeg, mpeg4, mpg, mts, nsv, ogm, ogv, qt, tod, MP2T, vob, wmv, x-ms-wmv.
File properties:
File size:
Up to 10 GB. For Ads up to 30 MB.
Duration:
Up to 120 minutes.
Frame rate:
30 fps.
Video size:
Portrait video:
720 x 1200 pixels.
Landscape video:
1200 x 720 pixels.

The Publish Editor preview supports mp4, mpeg4, ogv, and ogm. For other formats, Social Media Management does not show a preview, but your videos will get published without issue. Facebook renders video in 2:3 aspect ratio on Mobile devices.

Captions

File type:
SRT.

A sample file for SubRip (SRT) captions can be found here. You can create multilingual captions by uploading multiple SubRip files for one video.

Video thumbnails

File type:
JPG, JPEG, PNG.
File properties:
File size:
Up to 10 MB. For Ads up to 1 MB.
Image size:
Same as video dimensions.

Social Media Management automatically extracts 10 frames from across your video. You can set any of these as the video thumbnail.

Link preview thumbnails

File size:
Up to 10 MB.
Image size:
Link post:
1200 x 630 pixels (1.91:1 aspect ratio).
Carousel post:
1080 X 1080 pixels (1:1 aspect ratio).

Instagram

Images

File type:
JPG/JPEG and PNG.
File properties:
File size:
Up to 8 MB.
Image size:
Aspect ratio:
Must be within 4:5 to 1.91:1.
Width:
320 - 1440 pixels (will be upscaled or downscaled).

Videos

Single video or reel

File type:
MOV or MP4.
File properties:
File size:
Up to 1 GB.
Duration:
3 seconds to 15 minutes long.
Video bitrate:
VBR, 5 Mbps max.
Audio bitrate:
128 kbps.
Video size:
Width:
Up to 1920 pixels.
Aspect ratio:
0.01 - 10.0 (recommended is 9:16)

Note:

Although you can publish reels with longer durations and different aspect ratios, only reels with durations between 5 and 90 seconds and aspect ratios of 9:16 are eligible to appear in the Reels tab.

Carousels and stories

File type:
MOV or MP4.
File properties:
File size:
Up to 100 MB.
Duration:
3 to 60 seconds long.
Video bitrate:
VBR, 5 Mbps max.
Audio bitrate:
128 kbps.
Video size:
Width:
Up to 1920 pixels.
Aspect ratio:
4:5 to 16:9 (recommended is 1:1).

For detailed information on the requirements and process for publishing stories using the Hub mobile app, please see our article on Creating and Publishing Instagram Stories.


Twitter

Images

File type:
JPG, JPEG, PNG, WEBP.
File properties:
File size:
Up to 5 MB.
Minimum size:
600 x 335 pixels.
Aspect ratio:
Anything between 2:1 and 1:1.
Recommended image size:
Landscape image:
1200 pixels wide, with a height of 600 pixels (2:1 aspect ratio) or 800 pixels (3:2 aspect ratio). 1200 x 675 pixels (16:9 aspect ratio) is optimal for Mobile crops.
Square image:
1200 x 1200 pixels (1:1 aspect ratio).

Twitter allows up to 4 images per tweet. After 1:1 aspect ratio (for example, 1200 X 1400) we’ll crop to a 1:1 aspect ratio.

GIFs

File type:
Animated GIF.
File properties:
File size:
Up to 3 MB.
Minimum size:
600 x 335 pixels.
Aspect ratio:
Anything between 2:1 and 1:1.
Frame rate:
Up to 350 fps.
Total pixels:
Up to 300 million (width x height x number of frames).
Recommended GIF size:
Landscape image:
1200 pixels wide, with a height of 600 pixels (2:1 aspect ratio) or 800 pixels (3:2 aspect ratio). 1200 x 675 pixels (16:9 aspect ratio) is optimal for Mobile crops.
Square image:
1200 x 1200 pixels (1:1 aspect ratio).

Twitter allows one GIF per tweet. This cannot be combined with other attachments such as images. GIFs outside the aspect ratio range of 2:1 and 1:1 (for example, 1200 X 1400) will be cropped to a 1:1 aspect ratio.

Videos

File type:
MP4, MOV, Quicktime, X-M4V.
File properties:
File size:
Up to 512 MB.
Aspect ratio:
1:2.39 to 2.39:1.
Dimension:
32 x 32 to 1280 x 1024 pixels.
Frame rate:
30 or 60 fps.
Duration:
0.5 to 140 seconds.
Advanced properties:
Pixel format:
YUV 4:2:0.
Video codec:
H264 High Profile.
Audio codec:
AAC LC, mono or stereo.
Video bitrate:
Min. 5,000 kbps.
Audio bitrate:
Min. 128 kbps.
Coding:
No open GOP, and must use Progressive Scan.
Pixel aspect ratio:
1:1.
Recommended video size:
Portrait video:
240 x 240 pixels (256K bitrate), 480 x 480 pixels (768K bitrate) and 640 x 640 pixels (1024K bitrate).
Landscape video:
320 x 180 pixels (256K bitrate), 640 x 360 pixels (768K bitrate) and 1280 x 720 pixels (2048K bitrate).

The Publish Editor preview supports MP4 files. For other formats, Social Media Management does not show a preview, but your videos will get published without issue.


LinkedIn

Images

File type:
JPG, JPEG, PNG.
File properties:
File size:
Up to 10 MB.
Image size:
Landscape:
1200 x 627 pixels (1.91:1 aspect ratio).
Portrait
1200 x 1500 pixels (4:5 aspect ratio).

Videos

File type:
ASF, AVI, FLV, MPEG-1, MPEG-4, MKV, QuickTime, WebM, H264/AVC, MP4, VP8, VP9, WMV2, and WMV3.
File properties:
File size:
75 KB to 5 GB.
Aspect ratio:
1:2.4 to 2.4:1.
Dimension:
256 x 144 to 4096 x 2304 pixels.
Frame rate:
10 to 60 fps.
Duration:
3 seconds to 10 minutes.
Bitrate:
192 kbps to 30 Mbps.

Link preview thumbnails

File type:
JPG, JPEG, PNG, GIF (still or animated).
Image size:
1200 x 630 pixels (1.91:1 aspect ratio).

LinkedIn recommends uploading images greater than 200 pixels to achieve the larger link preview format. Images less than 200 pixels may instead appear as a thumbnail on the left side of the post.


TikTok

Videos

File type:
MP4, WebM, MOV
File properties:
File size:
Up to 1GB
Duration:
Longer than 3 seconds, shorter than 60 seconds
Aspect ratio:
Recommended 9:16
Video size:
Above 540p
540p:
540 x 960 pixels
720p:
720 x 1280 pixels
1080p:
1080 x 1920 pixels
1440p:
1440 x 2560 pixels
2160p:
2160 x 3840 pixels

Note:

Social Media Management does not have restrictions to files you upload to the Content Pool. Once you use the media for a specific channel, Social Media Management checks for compatibility with that network’s requirements. The only limitation is that the maximum accepted file size when creating stock is 1 gb per video and 25 mb per image.

For a further overview of all recommended image sizes for the major networks, and a great template file for your own images, head over to our Insights Hub article here.

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