diff --git a/__tests__/CanvasDownloadLinks.test.js b/__tests__/CanvasDownloadLinks.test.js
index 8a14e5d..6419e6c 100644
--- a/__tests__/CanvasDownloadLinks.test.js
+++ b/__tests__/CanvasDownloadLinks.test.js
@@ -12,6 +12,7 @@ function createWrapper(props) {
       canvasId="abc123"
       canvasLabel="My Canvas Label"
       classes={{}}
+      fullSizeParam="max_full"
       infoResponse={{}}
       restrictDownloadOnSizeDefinition={false}
       viewType="single"
@@ -179,7 +180,7 @@ describe('CanvasDownloadLinks', () => {
 
       const link = screen.getByRole('link', { name: /Whole image \(4000 x 1000px\)/i });
       expect(link).toBeInTheDocument();
-      expect(link).toHaveAttribute('href', 'http://example.com/iiif/abc123/full/full/0/default.jpg?download=true');
+      expect(link).toHaveAttribute('href', 'http://example.com/iiif/abc123/full/max_full/0/default.jpg?download=true');
     });
 
     describe('For Images Wider Than 1000px', () => {
@@ -187,7 +188,7 @@ describe('CanvasDownloadLinks', () => {
         createWrapper({ canvas });
 
         const link1 = screen.getByRole('link', { name: /Whole image \(4000 x 1000px\)/i });
-        expect(link1).toHaveAttribute('href', 'http://example.com/iiif/abc123/full/full/0/default.jpg?download=true');
+        expect(link1).toHaveAttribute('href', 'http://example.com/iiif/abc123/full/max_full/0/default.jpg?download=true');
 
         const link2 = screen.getByRole('link', { name: /Whole image \(1000 x 250px\)/i });
         expect(link2).toHaveAttribute('href', 'http://example.com/iiif/abc123/full/1000,/0/default.jpg?download=true');
diff --git a/src/CanvasDownloadLinks.js b/src/CanvasDownloadLinks.js
index 839bf87..febe220 100644
--- a/src/CanvasDownloadLinks.js
+++ b/src/CanvasDownloadLinks.js
@@ -34,13 +34,13 @@ export default class CanvasDownloadLinks extends Component {
   }
 
   zoomedImageUrl() {
-    const { canvas } = this.props;
+    const { canvas, fullSizeParam } = this.props;
     const bounds = this.currentBounds();
     const boundsUrl = canvas
       .getCanonicalImageUri()
       .replace(
         /\/full\/.*\/0\//,
-        `/${bounds.x},${bounds.y},${bounds.width},${bounds.height}/full/0/`,
+        `/${bounds.x},${bounds.y},${bounds.width},${bounds.height}/${fullSizeParam}/0/`,
       );
 
     return `${boundsUrl}?download=true`;
@@ -53,11 +53,11 @@ export default class CanvasDownloadLinks extends Component {
   }
 
   fullImageUrl() {
-    const { canvas } = this.props;
+    const { canvas, fullSizeParam } = this.props;
 
     return `${canvas
       .getCanonicalImageUri()
-      .replace(/\/full\/.*\/0\//, '/full/full/0/')}?download=true`;
+      .replace(/\/full\/.*\/0\//, `/full/${fullSizeParam}/0/`)}?download=true`;
   }
 
   thousandPixelWideImage() {
@@ -223,6 +223,7 @@ CanvasDownloadLinks.propTypes = {
     getWidth: PropTypes.func.isRequired,
   }).isRequired,
   canvasLabel: PropTypes.string.isRequired, // canvasLabel is passed because we need access to redux
+  fullSizeParam: PropTypes.string.isRequired,
   infoResponse: PropTypes.shape({
     json: PropTypes.shape({
       height: PropTypes.number,
diff --git a/src/MiradorDownloadDialog.js b/src/MiradorDownloadDialog.js
index c102790..423edca 100644
--- a/src/MiradorDownloadDialog.js
+++ b/src/MiradorDownloadDialog.js
@@ -87,19 +87,33 @@ export class MiradorDownloadDialog extends Component {
           <Typography variant="h2" component="span">Download</Typography>
         </DialogTitle>
         <ScrollIndicatedDialogContent>
-          {canvases.map((canvas) => (
-            <CanvasDownloadLinks
-              canvas={canvas}
-              canvasLabel={canvasLabel(canvas.id)}
-              infoResponse={infoResponse(canvas.id)}
-              restrictDownloadOnSizeDefinition={
-                  restrictDownloadOnSizeDefinition
-                }
-              key={canvas.id}
-              viewType={viewType}
-              windowId={windowId}
-            />
-          ))}
+          {canvases.map((canvas) => {
+            const imageInfo = infoResponse(canvas.id);
+            const context = imageInfo.json && imageInfo.json['@context'];
+            let contextArray;
+            if (Array.isArray(context)) {
+              contextArray = context;
+            } else if (typeof context === 'string') {
+              contextArray = [context];
+            }
+            const fullSizeParam = contextArray && contextArray.indexOf('http://iiif.io/api/image/3/context.json') > -1
+              ? 'max' : 'full';
+
+            return (
+              <CanvasDownloadLinks
+                canvas={canvas}
+                canvasLabel={canvasLabel(canvas.id)}
+                fullSizeParam={fullSizeParam}
+                infoResponse={infoResponse(canvas.id)}
+                restrictDownloadOnSizeDefinition={
+                    restrictDownloadOnSizeDefinition
+                  }
+                key={canvas.id}
+                viewType={viewType}
+                windowId={windowId}
+              />
+            );
+          })}
           {this.renderings().length > 0 && (
           <ManifestDownloadLinks
             renderings={this.renderings()}