The 24-year-old is looking to impress after completeing his season-long loan to the side and aims to improve the Swans' efficiency infront of goal
The former Netherlands Under-21 international joined the Swans on a season-long loan from Spanish club Villarreal to team up with new manager Michael Laudrup after the pair worked together at Mallorca.
The diminutive Allen moved to Liverpool in a £15 million move and the Canadian-born midfielder believes he can fill the role left by him.
He told reporters: "Joe had a very good season last year and I'm filling his shoes, but I don't feel any pressure.
|15/8||Swansea are 15/8 to be relegated this season with Bet365|
"I know what my capabilities are and hopefully I can contribute this season. It's going to be very exciting to play a game against Queens Park Rangers on Saturday.
"I haven't played for more than a season now. I didn't do much at Villarreal, but that's in the past.
"It's a new beginning, I'm starting for the first time in the Premier League and I'm happy to be here."
Swansea were highly praised last season for their passing game but only managed to score 44 goals in the entire campaign, with only three teams scoring less goals than them, and De Guzman believes he can help their goal-scoring problems.
He continued: "I'm a creative player who supplies the passes. Scoring goals is a bonus.
"Myself, Leon [Britton] and Michu, our job is to get the ball forward to create some chances for the forwards.
"The game is all about scoring and we need to make our mark on the Premier League, and that will be more difficult than last season now everyone knows what Swansea is all about.
"It's not going to be easy, but with the group we have, I think it should be a good season."