Convert JPG, PNG, or WebP images into a single PDF document. Fast, free, 100% in your browser.
Supports JPG, PNG, WebP, GIF — multiple files allowed
This tool uses your browser's built-in canvas API combined with the jsPDF library to stitch your images into a multi-page PDF document. Each image becomes one page in the PDF. No files are sent to any server — everything happens on your device.
An Image to PDF Converter combines one or more JPG, PNG, GIF or WebP image files into a single PDF document — entirely in your browser with no upload to any server. PDFs are universally accepted by government portals, email clients, legal systems, and business software — making this conversion one of the most practical everyday digital tools available.
Common reasons to convert images to PDF: submitting receipts or invoices to the ATO, combining scanned documents for a bank or employer, creating a multi-page portfolio, attaching photos to a rental application, or sending multiple screenshots as a single clean document.
| Format | Best For | Limitation |
|---|---|---|
| JPG / PNG / WebP | Editing, sharing individual photos | Multiple files to manage; not universally accepted |
| Documents, forms, multi-page files | Harder to edit individual pages |
| Who | Common Use |
|---|---|
| 🎓 Students | Submit assignment photos, convert scanned notes to PDF for LMS upload |
| 💼 Business owners | Create PDF invoices from JPG receipts; ATO-ready expense documentation |
| 🏠 Renters | Combine ID, payslips, and references into one document for rental applications |
| 📷 Photographers | Create multi-page PDF portfolio from individual image files |
| 🏥 Medical / legal | Bundle photos of documents into a single PDF for secure transmission |
How do I convert JPG to PDF?
Click 'Upload Images', select your JPG file, choose your page size (A4 is standard in Australia), and click 'Convert to PDF'. The PDF downloads instantly. The entire process happens in your browser — no file is sent to any server.
Can I convert multiple images into one PDF?
Yes. Upload multiple images at once (or drag and drop them). Each image becomes one page in the PDF. You can reorder the pages by dragging the thumbnails before converting. Up to 20 images per conversion is recommended for best performance.
Is my file secure when I convert?
Yes — completely. This tool uses your browser's built-in APIs to process files entirely on your device. No files are uploaded to any server. MegaCalcOnline cannot see, store, or access your images or the PDF created from them.
Why is my converted PDF file too large for the ATO portal?
The ATO myTax portal has a 5 MB attachment limit. If your converted PDF exceeds this, use our Image Compressor (above) to reduce image quality before converting to PDF, or use our PDF Compressor to reduce the finished PDF.
Can I convert PNG files to PDF?
Yes. This converter supports JPG, PNG, WebP, GIF, and BMP formats. PNG files with transparent backgrounds will have the transparency converted to white in the PDF (since PDFs don't natively support PNG transparency).
Does converting to PDF reduce image quality?
The tool preserves image quality at the level set during conversion. Images are scaled to fit the page but the quality of the original image is maintained. For the smallest file size, compress images before converting using the Image Compressor tool above.