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Dev.to
6/23/2026
Convert a PDF to PowerPoint (.pptx) entirely in the browser

Convert a PDF to PowerPoint (.pptx) entirely in the browser

Short summary

Render each PDF page to canvas using Mozilla's pdf.js, then assemble into PowerPoint with PptxGenJS—entirely in the browser with zero server cost. The tutorial covers critical implementation details: matching PDF aspect ratios to slide layouts, rendering at high DPI, and managing memory for large documents. Author shipped this as PDFNest, a free tool demonstrating complete privacy and client-side processing.

  • •Convert PDFs to PowerPoint entirely in the browser using pdf.js and PptxGenJS
  • •No server, no upload, no hosting costs—complete user privacy
  • •Tutorial includes aspect ratio matching, DPI scaling, and memory-efficient patterns

Generated with AI, which can make mistakes.

#product-launch#open-source#certification-education
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