Princess Kate has "two choices" ahead of Prince Louis' sixth birthday, a royal commentator claimed.
The youngster will turn six on April 23, and a new photograph will likely be released to mark the occasion.
The Princess of Wales usually releases a new photo of her three children on their birthdays.
Often, this will be a photograph that Kate has captured herself.
Kate's son Prince Louis will turn six later this month
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However, since the princess's Mother's Day photo blunder last month, a royal commentator suggested Kate could enlist the help of a professional photographer.
The royal Mother's Day picture, taken by Prince William, was later edited by Princess Kate.
The mother-of-three took to social media to explain that the photo had been digitally altered, after six international photo agencies issued a "kill" notice on the image.
She wrote: "Like many amateur photographers, I do occasionally experiment with editing.
The Princess of Wales confirmed she had edited her Mother's Day photoKensington Palace/X"I wanted to express my apologies for any confusion the family photograph we shared yesterday caused.
"I hope everyone celebrating had a very happy Mother’s Day. C."
The photo blunder resulted in several conspiracy theories on social media about Kate's wellbeing.
Royal commentator Christopher Andersen gave his suggestions for what Kate should do on Prince Louis' birthday regarding a new picture.
Princess Kate usually publishes pictures of her children on their birthdays
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Prince Louis is Prince William and Princess Kate's youngest childPAHe told Fox News: "My suggestion would be to either have Kate take the photo and not retouch it or have Kate take it and explain in advance how and why she altered the photo, or have a professional photographer take it and do all the explaining.
"I mean, will it really matter? The conspiracy theories will continue anyway.
"That particular genie is out of the bottle.”