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  1. Moodle
  2. MDL-50175

Optimize Moodle Image Files

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Details

    • Improvement
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 2.9
    • 3.1
    • Themes

    Description

      Using optipng, advancecomp, and jpegoptim I am able to losslessly reduce the size of images in the default Moodle install by about 1388KiB.

      I used the following commands:

      # Optimize PNGs by removing unnecessary data and optimizing filters with optipng then optimizing deflate compression with advdef
      		 
      find -path ./lib -prune -o -type f -iname "*.png" -exec optipng -strip all -o7 {} + -exec advdef -z4 -i50 {} +
      		 
       
      		 
      # Optimize JPEGs by removing unnecessary data and optimizing encoding with jpegoptim
      		 
      find -path ./lib -prune -o -type f -iregex ".*\.jpe?g$" -exec jpegoptim --strip-all {} +

      I have a commit up on GitHub with the images optimized .

      I shyed away from optimizing /lib because I read another feature enhancement on this tracker where a moodle dev didn't like /lib being modified. Additional gains can probably be had by optimizing that directory as well.

      Attachments

        Issue Links

          blocks

          Improvement - An enhancement to an existing Moodle feature. MDLSITE-4426 Add image optimisation step to prechecker/release process

          • Low - Cosmetic problems, nice-to-have features
          • Open
          has been marked as being related by

          Improvement - An enhancement to an existing Moodle feature. MDL-49663 Minify SVGs to save half their size

          • Minor - Minor loss of function where workaround is possible
          • Closed
          will help resolve

          Improvement - An enhancement to an existing Moodle feature. MDL-37180 Image files should be optimized

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Improvement - An enhancement to an existing Moodle feature. MDL-49663 Minify SVGs to save half their size

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Activity

            People

              Unassigned Unassigned
              Usual Peculiar Austin Brashear
              Barbara Ramiro Barbara Ramiro
              Andrew Lyons Andrew Lyons
              Mark Nelson Mark Nelson
              Huong Nguyen, Bas Brands, Mathew May
              Votes:
              1 Vote for this issue
              Watchers:
              11 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:
                23/May/16