So I designed a one-pager website and I dont have anymore space on photoshop to add another section for my website. Is it possible to add a section after converting it to html and wordpress?
The big question is WHY did you waste your time using PSD for produce a website?
You could have saved yourself a lot of effort had you just goner straight to HTML and CSS
...also note that it really is twentieth century methodology.
Are you, by any chance, related to Rip Van Winkle ?