Which images and videos can be published?

When publishing images and videos on the different social networks, there are some things that need to be considered. Not every image or video can be published because every network has specific rules. You will find everything you need to know to successfully publish posts via the SocialHub on this page.

You came here because you uploaded an image/video to the SocialHub and got an error message? Read this: Why can't I upload an image/video?

For which network would you like to publish images or videos?

 

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Facebook

Images

  • Accepted file types: jpg, bmp, png, tiff, gif
  • Maximum file size:
    • png: 1 MB (larger files may be uploaded, but the result will look a bit pixelated after its publication)
    • jpg, bmp, tiff: 4 MB
    • gif: 1 GB
  • Maximum pixel amount: 80 million pixels (i.e. an image can be up to 8944 pixels wide and up to 8944 pixels high. However, a total of 80 million pixels must not be exceeded.)

Videos

  • Recommended file types: mp4, mov
  • Accepted file types: 3g2, 3gp, 3gpp, asf, avi, dat, divx, dv, f4v, flv, m2ts, m4v, mkv, mod, mov, mp4, mpe, mpeg, mpeg4, mpg, mts, nsv, ogm, ogv, qt, tod, ts, vob, wmv
  • Maximum file size: 1 GB
  • Maximum video length: 20 Minuten
  • Aspect ratio: Between 9:16 and 16:9

Albums

  • Accepted file types: jpg, bmp, png, tiff
  • An album must hold at least one picture and must have a title.
  • An album can't contain a link and news feed targeting can't be applied.
  • Albums can't be published as dark posts.

Instagram

Images

  • Accepted file types: jpg, bmp, png, non-animated gif
  • Maximum file size:
    • png: 1 MB (larger files may be uploaded, but the result will look a bit pixelated after its publication)
    • jpg, bmp, non-animated gif: 8 MB
  • Resolution:
    • Minimum: 150 Pixel wide, 150 Pixel high (smaller images are scaled up)
    • Maximum: 1920 Pixel wide, 1080 Pixel high (larger images are scaled down)
  • Aspect ratio: Between 4:5 and 1.91:1

The exact constraints can also be found in the documentation of the Instagram API.

Videos

  • Accepted file types: mp4, mov
    • with HEVC or H264 video compression
    • and AAC audio compression
  • Maximum file size: 100 MB
  • Video length: Between 3 seconds and 60 seconds
  • Maximum bitrate: 5 mbps
  • Frame rate: Between 23 and 60 frames per second
  • Aspect ratio: Between 4:5 and 16:9

Additional limitations:

  • An Instagram post can only contain one video. It is not possible to combine it with a photo.

The exact constraints can also be found in the documentation of the Instagram API.

Twitter

Images

  • Accepted file types: jpg, png, gif, webp
  • Maximum file size: 5 MB
  • Maximum resolution:
    • gif: 1280 Pixel wide, 1080 Pixel high
    • jpg, png, webp: 8192 Pixel wide, 8192 Pixel high

Additional limitations for gif files:

  • Maximum file size: 15 MB
  • Maximum amount of frames: 350
  • Maximum pixel amount: 300 million pixels (i.e. an image with 350 frames can be up to 925 pixels wide and up to 925 pixels high)

The exact constraints can also be found in the documentation of the Twitter API.

Videos

  • Accepted file type: mp4
    • with H.264 video compression
    • and AAC audio compression
  • Maximum file size: 512 MB
  • Video length: Between 0.5 seconds and 140 seconds
  • Maximum bitrate: 25 mbps
  • Resolution:
    • Minimum: 32 pixels wide, 32 pixels high
    • Maximum:
      • 1280 pixels wide, 1024 pixels high
      • or 1024 pixels wide, 1280 pixels high
  • Aspect ratio: Between 1:3 and 3:1

The exact constraints can also be found in the documentation of the Twitter API.

LinkedIn

Images

  • Accepted file types: jpg, png
  • Maximum file size: 10 MB
  • Maximum pixel amount: 40 million pixels (i.e. an image can be up to 6324 pixels wide and up to 6324 pixels high. However, a total of 40 million pixels must not be exceeded.)

Additional limitations:

  • The file name must not contain any dots.

Videos

  • Accepted file types: mp4, avi, flv, mkv, mov, webm, mpg
  • File size: Between 75 KB and 200 MB
  • Video length: Between 3 seconds and 10 minutes
  • Resolution:
    • Minimum: 256 pixels wide, 144 pixels high
    • Maximum: 4096 pixels wide, 2304 pixels high
  • Frame-Rate: Between 10 and 60 frames per second
  • Bitrate: Between 192 kbps and 30 Mbps
  • Aspect ratio: 1:2.4 or 2.4:1

Placeholder

Images

  • Accepted file types: jpg, png, gif
  • Maximum file size: 1 GB
  • Maximum pixel amount: 40 million pixels (i.e. an image can be up to 6324 pixels wide and up to 6324 pixels high. However, a total of 40 million pixels must not be exceeded.)

Videos

  • Accepted file types: avi, mov, wmv
  • Maximum file size: 4 GB

Why can I upload an image/video that the SocialHub does not accept directly to the network?

The SocialHub uses so-called APIs to communicate with the various networks. Indeed, there is a difference whether an image/video is uploaded directly to the network itself or whether it is published via API. Of course, the networks prefer that users sign in directly on their website or at least use their app. Sure, they can only show advertisements and earn money with it then. That's why the APIs are sometimes restricted which should make our lives a little harder. But this is no problem, because we know the limitations now and as long as we are within these limits we can also publish pictures and videos via the SocialHub.

Why can't I upload an image/video?

Admittedly, the error messages are somewhat cryptic. We will adjust this in the future to make them more meaningful. In the meantime this list will help you:

"Media resolution ratio is invalid. It should be greater than 0.8 (width / height)." or "Media resolution ratio is invalid. It should be lower than 1.91 (width / height)."

This error message refers to the aspect ratio of the image. An example: For Instagram, the aspect ratio must be between 4:5 and 1.91:1. An aspect ratio of 4:5 means that an image with a width of 400 pixels must not be higher than 500 pixels. The aspect ratio of 1.91:1 specifies that an image with a width of 400 pixels can be a maximum of 764 pixels high. The width and height of the image are interchangeable. However, the image size must be within this range.

"Total number of pixels cannot be greater than 40000000." or "Total number of pixels cannot be less than 10000."

This error message refers to the amount of pixels of the image. An example: For LinkedIn an image may contain up to 40 million pixels. This means that a square image with a width of 6324 pixels can have a maximum height of 6324 pixels. If one of the two values is lower, the other can be higher. Simply multiply the width and height of the image. This value must be smaller or larger (depending on the error message) than the value indicated by the message.

"Media width too big. It should be smaller than 8192 pixels." or "Media width too small. It should be bigger than 8192 pixels."

This error message refers to the width of the image. If the image is too large, you can simply edit it using an image editing program and scale it to the appropriate width. This isn't that simple with too small images. If you simply enlarge them, the image quality might suffer. You should use the source file from which the image was created. If you didn't create the image yourself, it's best to talk to the person you received the image from.

"Media height too big. It should be smaller than 8192 pixels." or "Media height too small. It should be bigger than 8192 pixels."

This error message refers to the height of the image. If the image is too large, you can simply edit it using an image editing program and scale it to the appropriate height. This isn't that simple with too small images. If you simply enlarge them, the image quality might suffer. You should use the source file from which the image was created. If you didn't create the image yourself, it's best to talk to the person you received the image from.

"Media file too large. It should be smaller than 4194304 bytes."

This error message refers to the file size. The number 4194304 is equivalent to 4 MB. This is the maximum size of an image file for Facebook.

"The file cannot be smaller than 73.24 KB."

The uploaded file is below the minimum requirements of the network. The image must be re-uploaded in a higher resolution or better quality.

"Video duration is invalid. It should be less than 140s." or "Video duration is invalid. It should be more than 140s."

This error message refers to the length of the video in milliseconds. Simply divide the value by 1000 to get the value in seconds. The video must not be longer or shorter (depending on the error message) than this value.

Pixel aspect ratio should equal 1:1.

This error message refers to the width of a pixel relative to its height. A pixel aspect ratio of 1:1 means that width and height must be identical.

"Number of frames cannot be greater than 60." or "Number of frames cannot be less than 10."

This error message refers to how many frames a video contains per second. For the video to be accepted and published by the network, the limit must be met.

The error message you are getting is not listed?

Please contact us via the support function in the SocialHub. Please include the exact error message and the original file you uploaded.


Do you have feedback / suggestions or do you experience difficulties using the information provided here?
Contact us at support@socialhub.io and we will try to help you as soon as possible.

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