Accepted file types for uploading

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You can add an unlimited number of JPEG, GIF, PNG, and HEIC files to your SmugMug account.

Note: RAW files can be uploaded with a current SmugMug Source subscription.

The size limitations per photo are 500 mebibytes (a bit over 500 megabytes) and 4 gigapixels. RAW files have a limit of 3GB per photo.

If a file exceeds those limits, we'll try to resample it (in the case of too many pixels) or recompress it (in the case of large file size) to bring it within the limits. If we can't, you'll see an error in your upload log.

Although we support PNG files, they can't be used for prints through SmugMug. We recommend using them only for building your own themes (non-seller accounts) and custom watermarking (seller accounts).  

HEIC files also have limited browser compatibility, so we convert them to JPEGs to allow browsers to be able to display them. We don't retain a copy of the original HEIC file, so if you try to download the original at a later date, you'll receive a high-quality JPEG instead.

At this time we're unable to support LivePhotos and slow-mo movies, so the moving portion of LivePhotos will be ignored and a static JPEG will instead be displayed. Slow-mo movies will play in real time.

FYI: Only JPEGs can be ordered as prints and gifts.

Check out these additional tips for preparing your files for upload.

Where do I find my file's type?

On a Mac, hold down the command key and "i" keys on your keyboard. Or right-click on a file and select Get Info from the menu.

You'll be able to see the file size, file type, and image dimensions.


Each video file can be up to 20 minutes long and 3 GB in size. More details on supported video files are available in this article.

GIF creation best practices.

  1. GIFs are typically limited to a few seconds in length due to file size. The larger the file, the more difficult to share. Up to 15 seconds is good, no more than 6 seconds is even better.
  2. Consider limiting up to 100MB, although we recommend 8MB or less.
  3. Source video resolution should be 720p max, but we recommend 480p.
  4. Keep in mind media will appear mostly on small screens or smaller messaging windows. 
  5. Our mobile applications do optimize the content for size, which sometimes results in subtle changes to the GIF's size and speed, which is why following the best practices is recommended.
  6. Minimizing the total number of frames will help us to preserve your content when  reformatting. Fewer than 200 frames works well. Fewer than 100 works even better! 

Does colorspace matter?

To help web browsers better display your photos the way you intend, make sure you embed the color profile in each image.

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