Now, Slater is apparently struggling financially, the costs of the ongoing court battles all but draining his coffers.
Speaking to The Telegraph, the 52-year-old photographer said: "I'm just not motivated to go out and take photos any more".
People for the Ethical Treatment of Animals (PETA) sued Mr Slater over the photo in 2015.
After an awkward handshake, Donald Trump admires French first lady's body
He then turned to the French President and repeated his comment, adding: "You're in such good physical shape". They had shared a long, tense handshake during their first meeting in Brussels in May.
The selfie in question occurred in 2011 when Mr Slater was travelling to Indonesia to take photos of macaques. PETA then filed a lawsuit against Slater on the monkey's behalf to have the copyright assigned to the monkey.
"Every photographer dreams of a photograph like this".
"I know for a fact that [the monkey in the photograph] is a female and it's the wrong age", Slater tells The Guardian. "I'm bewildered at the American court system. I don't make enough money to pay income tax".
- Punk Supergroup Armstrongs Share New Single 'If There Was Ever A Time'
- Turkey sacks 7400 civil servants on anniversary of coup
- One Jawan martyred in Pakistan firing along LoC
- CNN: Video shows Pres. Trump with associates tied to Russia controversy
- Plusieurs incendies en cours dans les Bouches-du-Rhône
- Agents seize 480 pound pot shipped from Mexico to Warren area
- Five things you need to know about Queen Letizia of Spain
- Macron, Hollande et Sarkozy ensemble à Nice pour l'hommage aux victimes
- Cara Delevigne Explores 'Valerian' Space Odyssey In The City of Lights
- 'Tubelight' debacle: Kabir Khan DISAPPOINTED with Salman-starrer's box office collection