# Compress User Images Before Upload on Shopify

We use CropGuide to **compress user images before they’re uploaded** to Shopify, no technical skills required.

First we need to [install CropGuide for Shopify](/integrations/shopify). Then we can set up image compression. This might sound like a lot, but don’t worry, it’ll only take a couple of minutes.

[Try a live CropGuide demo on our landing page](/#demo)

## Set the output image quality

Set the output image quality in the [CropGuide customer dashboard](https://app.cropguide.io). CropGuide will apply this setting before an image is uploaded.

1. Select your website in the Customer dashboard.
2. Scroll towards the **Configuration** heading.
3. Then scroll down towards the **Image Quality** heading. ![A screenshot of the CropGuide dashboard showing a range input to control the output image quality](/media/dashboard-image-quality.png)
4. The higher the value the higher the image quality and the bigger the image size in bytes. We can set it to `70%` to get a good compression to image quality ratio.
5. Click Save.

## Prevent low-resolution uploads

If you want to make sure the images users upload contain enough details, you can optionally set the **Minimum Crop Size** field. This will prevent users from uploading low resolution images.

Now navigate to the form on your website and refresh the page so we can test if our new settings have loaded.

## Test image compression

When using the image upload field on your Shopify site, CropGuide will now ensure every image is compressed before upload, resulting in **faster uploads, less disk usage, and lower costs for you**.

[Try a CropGuide demo on the site](/#demo), or [reach out](/contact/) if you have any questions.

### Related content

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* [Crop Identity Card Photos Before Upload on Shopify](/integrations/shopify/crop-photo-to-identity-card-size/)
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* [Convert HEIC/HEIF to JPEG Before Upload on Shopify](/integrations/shopify/convert-heic-to-jpeg-before-upload/)
* [Help Customers Crop Images Before Uploading to Shopify](/blog/crop-image-before-upload-to-shopify/)