Upload export-utils.js

shared/export-utils.js

@@ -573,7 +573,7 @@ export const generateHTMLPresentation = (pptData, options = {}) => {
           const prevBtn = document.getElementById('prevBtn');
           const nextBtn = document.getElementById('nextBtn');
           if (prevBtn) prevBtn.disabled = this.currentSlide === 0;
-          if (nextBtn) nextBtn.disabled = this.totalSlides - 1;
+          if (nextBtn) nextBtn.disabled = this.currentSlide === this.totalSlides - 1;
         }
         
         autoScale() {