How to Convert JPG to PDF Free Online: The Complete Guide to Turning Images into Documents

Converting JPG to PDF is one of the most common tasks for anyone working with photos, scans, screenshots, spec sheets, or documents captured with a smartphone. Turning images into a single, well-organized PDF lets you archive files cleanly, share them by email, or upload them to portals that only accept PDF files. In this guide, we'll cover how to convert JPG, PNG, and WebP to PDF free online, how to choose page size and orientation, and how to produce a professional-quality document.

When should you convert images to PDF?

• Emailing scans captured with your smartphone (Adobe Scan, CamScanner, Microsoft Lens, Apple Notes).
• Uploading documents to government or institutional portals that only accept PDF files.
• Archiving receipts, invoices, and tickets in a single organized file.
• Sending spec sheets received as images in a professional format.
• Building portfolios of photography or design work to share with clients.
• Attaching screenshots to a support request.
• Batch printing multiple photos as a single document.

How to convert JPG to PDF online

1. Open JPG to PDF from the homepage or use the embed on this page.
2. Drag and drop your images (JPG, PNG, WebP, AVIF, GIF) into the drop area, or click to select them. You can upload multiple files at once.
3. Reorder the images using the ↑/↓ arrows or by dragging them — the order you set will become the page sequence in the PDF.
4. Choose the page size: Fit to Image (the page matches the photo's dimensions exactly), A4, or US Letter.
5. Choose the orientation: Automatic (based on the image), Portrait, or Landscape.
6. Set the margins (A4/Letter only): None, Small (~1 cm), or Large (~2.5 cm).
7. Click Convert to PDF and download the finished file.

How to choose the right page size

Fit to Image

The PDF page is exactly the same size as the image. Best for: photography portfolios, full-resolution screenshots, high-resolution images you don't want scaled.

A4 (210 × 297 mm)

The standard European format for printable documents. Best for: document scans, receipts, tickets, and spec sheets sent by email or uploaded to portals.

US Letter (216 × 279 mm)

The standard North American format, slightly different from A4. Use it when your recipients are in the US or when it's explicitly required.

Supported image formats

• JPG / JPEG: the standard photo format. Embedded natively in the PDF — quality preserved at 100%.
• PNG: ideal for screenshots and graphics with transparency. Transparency is preserved in the PDF.
• WebP: a modern, efficient format. Automatically converted to high-quality JPEG.
• AVIF: a next-generation format. Automatically converted to high-quality JPEG.
• GIF: the first frame is converted to JPEG (the PDF is static).

Privacy: your images stay on your device

Images can contain highly sensitive data: scans of ID cards, receipts with banking details, screenshots of private conversations. PDFtoAll performs the conversion entirely in your browser — images are read locally and the PDF is generated without anything ever leaving your device.

Related tools

• PDF to JPG: the reverse operation — extract PDF pages as images.
• PNG to PDF: if you work exclusively with PNG files, this dedicated tool preserves transparency and quality.
• Merge PDF: if you've already converted some images and want to add them to an existing PDF.
• Compress PDF: to reduce the file size of the resulting PDF (especially useful when working with many high-resolution photos).
• Rotate PDF: if your photos were taken in landscape orientation but you want them displayed in portrait.

Conclusion

Converting JPG to PDF free online is the perfect solution for anyone who regularly handles photos, scans, and screenshots. With PDFtoAll, it takes just a few seconds to produce a clean, professional document ready to share or archive. If you're working with many high-resolution files, remember to compress the resulting PDF before sending it by email.