Upload file into Assets using URL? Is it possible in a front end entry form to pass the URL of a file to an assets field and have it upload that way?  Specifically, I'm trying to move an image from one assets field &amp; upload folder to another in an edit entry form.
It’s not currently possible to upload assets via URL, but if we’re only talking about images that are already uploaded into Craft, you could have them selected by their existing asset IDs, rather than URLs, and it would work.

First, go into your Assets field settings and check the “Restrict uploads to a single folder” checkbox.

Then in your entry form, write a UI for selecting an existing asset. Something like this:

&lt;ul class="asset-selector"&gt;
    {% for image in craft.assets.source('images') %}
        &lt;li&gt;
            &lt;label&gt;
                &lt;input type="radio" name="fields[myAssetsField][]" value="{{ image.id }}"&gt;
                {% do image.setTransform({ width: 100, height: 100 }) -%}
                &lt;img src="{{ image.url }}" width="100" height="100" alt="{{ image.title }}"&gt;
            &lt;/label&gt;
        &lt;/li&gt;
    {% endfor %}
&lt;/ul&gt;