How to Convert JPG to PDF on Mac, Windows & Online

Sending a single image file is easy. Sending 15 separate JPGs attached to an email? That is a digital nightmare. Whether you are a student submitting an assignment, a freelancer sending receipts, or just organizing family photos, converting images to PDF is a skill you need to master.

While JPG is the king of images, PDF is the king of documents. PDFs lock in your formatting, ensure your images print correctly on any paper size, and most importantly, allow you to combine multiple images into one file.

In this guide, we will walk you through the fastest ways to turn your JPGs (and PNGs) into PDFs on every major platform.

Method 1: The Online Way (Fastest for Merging)

If you have multiple images that you need to stitch together into one document, doing it natively on your computer can be clunky. Online tools handle the alignment and page sizing for you.

1. Go to the PDF Professionals Image to PDF tool.
2. Drag and drop all your images (JPG, PNG, GIF, etc.) at once.
3. Our system will automatically arrange them.
4. Click Convert and download your single PDF file.

This works on Mac, Windows, Linux, Chromebooks, and even mobile devices without installing any apps.

Method 2: How to Convert JPG to PDF on Mac (Preview)

macOS has a powerful secret weapon called Preview. It's the default app that opens images, but it's also a PDF engine.

For a Single Image:

1. Double-click your image to open it in Preview.
2. Go to File > Export as PDF... in the menu bar.
3. Name your file and hit Save.

For Multiple Images:

1. Select all the images you want in Finder.
2. Right-click and choose Open With > Preview.
3. In the sidebar, drag the thumbnails to rearrange the order.
4. Select all thumbnails (Cmd + A) in the sidebar.
5. Go to File > Print.
6. In the print dialog, look for the PDF dropdown in the bottom left corner and select Save as PDF.

Method 3: How to Convert JPG to PDF on Windows 10/11

Windows doesn't have "Preview," but it does have a built-in "Photos" app and a virtual printer.

1. Open the folder containing your images.
2. Select all the images you want to convert.
3. Right-click on the selection and choose Print.
4. In the Printer dropdown menu, select Microsoft Print to PDF.
5. Adjust your layout settings (e.g., select "Full Page Photo" to ensure they fill the page).
6. Click Print. Windows will ask you where to save the new PDF file.

Method 4: iPhone and Android

On mobile, you don't need to download sketchy scanner apps filled with ads.

On iPhone (iOS):

Open your Photos app, select the photos, tap the Share icon, and scroll down to Print. In the printer preview screen, perform a "pinch-out" zoom gesture on the preview image. This secretly converts it to a PDF! Then just hit the Share icon again to save it to Files.

Common Questions (FAQ)

Will converting to PDF reduce image quality?

It depends on the method. The "Microsoft Print to PDF" method sometimes compresses images to fit the page. Using a dedicated tool like PDF Professionals ensures the original pixel density is maintained as much as possible.

Can I turn the PDF back into an image later?

Yes! If you regret the conversion, you can use our PDF to JPG tool to extract the images back out of the document.

Why is my PDF file size so huge?

Images are heavy data. If you combine 10 high-res photos, your PDF will be huge. If you need to email it, we recommend running the final file through our Compressor to shrink it down.