Hi,

There is no operation yet to trigger the conversions of Pictures or Videos.

For Videos, you can use the VideoService:

• VideoService#launchConvertion to launch a specific conversion
• VideoService#launchAutomaticConversions to launch all the registered automatic conversions

For Pictures, the easiest way for now is to reset the main blob on the Picture: that will trigger all the default conversions:

BlobHolder blobHolder = doc.getAdapter(BlobHolder.class);
if (blobHolder.getBlob() != null) {
    blobHolder.setBlob(blobHolder.getBlob());
    documentManager.saveDocument(doc);
    documentManager.save();
}