Donald Trump likes to stand out in a crowd – even with his signature at a World War II commemoration.

Trump's decision to sign a multi-national D-Day proclamation Thursday at the very top of the page – not underneath the message as is customary – is drawing a lot of scrutiny on social media.

"Guess which world leader signed his name at the top, when everyone else signed at the bottom?!" tweeted Stig Abell, editor of the Times Literary Supplement, a London-based literary journal.

It's not the first time Trump has sought to distinguish himself at an international meeting.

During a G-7 summit in Sicily two years ago, most of the leaders took a stroll through the historic hillside town of Taormina – while Trump followed in a golf cart.

More:European allies made the D-Day landing at Normandy possible. 75 years later, Trump questions those bonds

More:Macron helps veteran to his feet, Trump gets a salute: Key moments from Trump's D-Day address in Normandy

More:'I was shaking': D-Day battle still fresh for surviving veterans 75 years later

On that same trip, at a NATO summit in Brussels, Trump drew attention by shoving the leader of Montenegro out of the way before a group photo.

The top-line signature on the D-Day proclamation underscores Trump's need for attention, critics say.

"The size of the signature correlates with narcissism, with ego, with a grandiose sense of self-importance," CNN quoted a handwriting expert as saying.

Other social media users said they didn't mind, especially given the United States' role in the Normandy landings on D-Day that led to the liberation of Europe during World War II.

Responding to Abel's tweet, one Twitter user wrote: "When it comes to WW2, an American can sign where the fk they like, even if it is Trump, because without them I would be writing this in German, or possibly Russian!!"

European leaders signed the proclamation – standard fare for international gatherings, especially war commemorations – that honors those who lost their lives in World War II. It says, "We stand together today to honor the memory of those who paid the ultimate sacrifice" during the D-Day landings on June 6, 1944.

Signers, at the bottom, included French President Emmanuel Macron and German Chancellor Angela Merkel.

The proclamation also says: "We affirm that it is our shared responsibility to ensure that the unimaginable horror of these years is never repeated."