Optimizing images for upload to Multimedia Manager

When you upload a picture into Multimedia Manager, it automatically creates four resized and web-optimized versions of the photo and discards the original. In most cases, it is not necessary to compress/resize the images before uploading. However, if your photo files are very large (10 MB or more) and you experience unacceptable upload times, you may want to compress/resize them (using https://compressor.io/, Photoshop, iPhoto, etc.).

Following is the conversion process for uploaded images.

  1. Accepted file types are .jpg, .jpeg and .png.

  2. Images will be resized into four web-optimized sizes (where "N" is whatever value is necessary to maintain the proportion of the original image).

    For landscape images (width greater than height):

    • Thumbnail: 100 x N
    • Mobile: 480 x N
    • Display: 1024 x N
    • Full size: 1920 x N

    For portrait images (height greater than width):

    • Thumb: N x 56
    • Mobile: N x 270
    • Display: N x 576
    • Full size: N x 1080
  3. PNG images will be converted to jpg on the server, then resized.

  4. Images with a CMYK color profile will undergo an alternate read in the conversion process (RGB). Uploading images with an RGB color profile is preferred.

  5. If the full-size dimensions are larger than the source image, the display image (1024x576) will be used as both display and full size.

  6. Images will attempt to convert all four sizes. If and error occurs, the system will attempt two more conversions. If there's another failure after three attempts, the media server will remove the image from the queue and alert the client server in the Multimedia Manager System Messages.

See also Recommended image size and resolution for Multimedia Manager slideshow photos.

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