How to Convert JPG Images to PDF — Free, Any Device

Converting images to PDF is one of the most common document tasks there is. Whether you're scanning receipts with your phone, combining photos into a single document for submission, or converting screenshots into a presentable file, the process should take seconds — not require an app download or a subscription.

Common reasons to convert JPG to PDF

Expense reports: Photograph receipts and combine them into one PDF before submitting to your employer's finance system.
Document submissions: Many portals accept PDFs but not images. Convert scanned ID, qualification certificates, or forms to PDF for submission.
Portfolio or presentation: Combine multiple images or mockups into a single, clean PDF document.
Archiving: PDFs are more universally accessible and better for long-term storage than loose image folders.

How to convert JPG to PDF using PDF Ninjas

Go to PDF Ninjas — JPG to PDF.
Upload your images. You can upload multiple JPG, PNG, or other image files at once. They will be combined into a single PDF in the order you upload them.
If you need a specific page order, drag and drop the images in the list to reorder them before processing.
Enter your email address and click "Process & Download."
Download the resulting PDF. Each image becomes one page in the document.

What image formats are supported?

PDF Ninjas accepts JPEG (.jpg, .jpeg), PNG (.png), and common image formats. If you have images in another format (TIFF, HEIC from an iPhone, WebP), you may need to convert them to JPEG or PNG first using your operating system's built-in tools before uploading.

Does the conversion affect image quality?

Your images are embedded into the PDF at their original resolution. We do not re-compress or reduce the quality of your images during the conversion. The resulting PDF will display your images exactly as they were uploaded.

Note that the file size of the PDF will be similar to the combined size of your input images — this is normal and expected. If you need to reduce the resulting PDF's size, use the Compress PDF tool after converting.

Converting images to PDF on mobile

PDF Ninjas works in any mobile browser — Safari on iPhone, Chrome on Android. The upload flow is the same: tap "Select Files" and choose images from your camera roll or files app. There's no app to install.

On iOS, you can also use the built-in Share Sheet to create PDFs from images directly, though it only converts one image at a time. PDF Ninjas is more useful when you have multiple images to combine into a single document.

Alternative: converting a single photo on desktop

If you only need to convert a single image and you're on a desktop computer, your operating system has built-in options:

Windows: Open the image in Photos, press Ctrl+P, and choose "Microsoft Print to PDF" as the printer.
macOS: Open the image in Preview, go to File → Export as PDF.

For multiple images or a browser-based workflow, PDF Ninjas is faster — especially when you need to control the order of pages.