Generate Thumbnail Previews

You can preview the thumbnail image of any document uploaded to Document Engine by sending the request specifying the page index of the page you want to preview and either the width or height of the thumbnail:

curl "http://localhost:5000/api/documents/7KPS35QPZA65Z0DKSDJBTD5DFS/pages/0/image?width=100" \
  -H Authorization: Token token=secret" \
  -o thumbnail.png

After you run the above command, the thumbnail.png file will contain the rendered thumbnail.

To get a thumbnail of a specific height instead of width, replace the width parameter with height, e.g.:

curl "http://localhost:5000/api/documents/7KPS35QPZA65Z0DKSDJBTD5DFS/pages/0/image?height=100" \
  -H Authorization: Token token=secret" \
  -o thumbnail.png

To preview a thumbnail of another page, replace the 0 in the URL with the page index of the page you’d like to render:

curl "http://localhost:5000/api/documents/7KPS35QPZA65Z0DKSDJBTD5DFS/pages/1/image?width=100" \
  -H Authorization: Token token=secret" \
  -o thumbnail.png

And finally, if you want the annotation appearance streams to be rendered in the preview, provide the render_ap_streams parameter:

curl "http://localhost:5000/api/documents/7KPS35QPZA65Z0DKSDJBTD5DFS/pages/1/image?width=100&render_ap_streams=true" \
  -H Authorization: Token token=secret" \
  -o thumbnail.png