false, 'message' => 'Only PPT and PPTX files are allowed.']); exit; } if ($file['size'] > 50 * 1024 * 1024) he{ echo json_encode(['success' => false, 'message' => 'File size must be under 50MB.']); exit; } $safeName = 'ppt_' . time() . '_' . rand(1000, 9999) . '.' . $ext; $uploadPath = $uploadDir . $safeName; if (!move_uploaded_file($file['tmp_name'], $uploadPath)) { echo json_encode(['success' => false, 'message' => 'Upload failed.']); exit; } $cmd = 'libreoffice --headless --convert-to pdf --outdir ' . escapeshellarg($outputDir) . ' ' . escapeshellarg($uploadPath) . ' 2>&1'; shell_exec($cmd); $pdfName = pathinfo($safeName, PATHINFO_FILENAME) . '.pdf'; $pdfPath = $outputDir . $pdfName; if (!file_exists($pdfPath)) { echo json_encode(['success' => false, 'message' => 'Conversion failed. Make sure LibreOffice is installed on server.']); exit; } echo json_encode([ 'success' => true, 'message' => 'PPT converted to PDF successfully.', 'download' => 'uploads/ppt-pdf/converted/' . $pdfName ]); exit; } include 'header.php'; ?>
Free Online PowerPoint Tool

PPT to PDF Converter

Convert PPT and PPTX files into clean PDF documents with drag and drop, progress status, and instant download.

Use PPT to PDF Converter

100% Free & Instant
PPT
presentation.pptx
0 MB

Ready

Upload your PPT or PPTX file. Your PDF download button will appear here.

Simple Steps

How to Use This Converter

Convert your PowerPoint file into PDF with a clean and simple process.

1
Upload PPTSelect or drag your PPT/PPTX file.
2
Check PreviewSee file name and size before conversion.
3
ConvertClick convert and track progress.
4
Download PDFSave your converted PDF file.
Tool Benefits

About This PPT to PDF Tool

This converter helps you turn PowerPoint presentations into PDF files for sharing, printing, study, work, and online use.

Why Use This Tool?

PDF files are easier to share and open on any device. This tool keeps your presentation clean and simple.

⚡ FastConvert PowerPoint files quickly.
📄 Clean PDFCreates easy-to-share PDF files.
📱 ResponsiveWorks on mobile and desktop.
✅ FreeNo signup or payment needed.
Easy Formula

Conversion Formula & Explanation

PPT / PPTX File → PDF Document → Download

The tool uploads your PowerPoint file, converts each slide into PDF format, and gives you a downloadable PDF file.

Helpful Advice

Common Mistakes & Tips

Follow these tips for better PDF output.

❌ Common Mistakes

  • Uploading unsupported files.
  • Using very large presentations.
  • Using missing fonts inside slides.

✅ Pro Tips

  • Use PPTX format for best results.
  • Keep file size under 50MB.
  • Check your slides before upload.
Quick Answers

FAQs

Here are simple answers about this PPT to PDF converter.

Is this PPT to PDF converter free?

Yes. This tool is free to use.

Which files are supported?

You can upload PPT and PPTX files.

Why is LibreOffice needed?

It helps the server convert PowerPoint files into PDF correctly.

Can I use it on mobile?

Yes. The page is fully responsive.