For some reason, the image gallery for certain products isn't resizing its main image, but other products are doing it fine. Here's an example of a product that isn't working. Here's an example of one that is. As you can see, the images themselves are the same size, but one is being sized to ~800px, and the other to ~300px. Both have inline styling, but I can't figure out where this styling is coming from.

It's just using the default Fotorama Slider. I've attempted to add various maxwidth, max-width, maxheight, and max-height attributes to various places:

  • x-magento-init block in app/design/frontend/<theme>/Magento_Catalog/templates/product/view/gallery.phtml
  • vendor/magento/theme-frontend-luma/etc/view.xml
  • vendor/magento/module-catalog/view/frontend/templates/product/view/gallery.phtml

No dice - I can get changes to appear on the frontend, but nothing I do fixes the image sizes.

2 Answers 2


I've tried to do this comand:

php bin/magento catalog:images:resize

And i had this error:

Warning: imagecreatetruecolor(): product of memory allocation multiplication would exceed INT_MAX, failing operation gracefully

@MaxL can you help please?

  • It seems that you have at least 1 image that is extremely large that is causing the 4GB memory limit to be exceeded
    – MaxL
    May 4, 2017 at 15:35

Try running the following command in the CLI from your Magento installation's root folder:

php bin/magento catalog:images:resize  

It might help!

  • That didn't seem to do anything. I ran the command then cleared the image cache, and some product images are still too large while others are fine. I did receive quite a few of this error: libpng warning: Incorrect sBIT chunk length - could that have preventing some images from resizing?
    – A Decker
    May 4, 2017 at 14:55
  • You might have some corrupted png files, try re-saving those images in a different format like jpg and re-uploading them?
    – MaxL
    May 4, 2017 at 15:34

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