How to Convert Images to PDF (JPG and PNG)

A folder of separate photos is annoying to send, print, or submit — one PDF containing all of them in the right order is much easier to handle. Here's how to combine JPG or PNG images into a single PDF, and what actually happens to your images along the way.

Why Combine Images Into a PDF at All

Sending five photos as five separate attachments means the recipient has to open each one individually, and there's no guarantee they'll view them in the order you intended. A single PDF fixes both problems — one file, fixed page order, opens the same way everywhere.

This is especially common for scanned documents (a multi-page form photographed page by page), receipts being submitted for reimbursement, or a simple photo portfolio.

Step by Step

1. Open the image to PDF converter.
2. Drop one or more JPG or PNG images onto the upload area, or click it to choose files. Both formats can be mixed in the same conversion.
3. Reorder images using the up/down buttons on each one if you need a specific page order — this matters most for multi-page scans, where the sequence needs to match the original document.
4. Click "Convert to PDF." Each image becomes its own page.
5. Download the finished PDF.

What Happens to Image Quality

A reasonable worry with any conversion is whether it degrades the original file. With QR Ivify's converter specifically: JPG images are embedded as-is, with no re-compression, and PNG images are embedded at their original quality as well — nothing is resampled or compressed in the process. The trade-off is file size: a batch of high-resolution photos produces a correspondingly large PDF, since nothing is being shrunk to save space.

If you're combining many large photos and the resulting PDF feels too big to email, consider resizing the source images before converting, since the converter itself won't do that for you.

JPG vs PNG: Does It Matter Which You Use?

For this specific use case — combining images into a PDF — the practical difference is smaller than people expect:

• JPG is compressed and typically smaller, which works well for photos (scans, receipts, pictures with lots of color variation).
• PNG is lossless and better for screenshots, graphics with sharp text or edges, or anything where compression artifacts would be noticeable.

You don't need to convert between them before combining into a PDF — a tool that accepts both lets you mix formats in the same file without worrying about it.

Tips for a Clean Result

• Name your image files in the order you want them (e.g., page-01.jpg, page-02.jpg) before uploading — it makes reordering faster if you're combining many images.
• For scanned documents, photograph pages in consistent lighting and orientation; the converter doesn't rotate or crop images automatically.
• If the final PDF needs to be small for emailing, resize source images first — the converter preserves quality rather than compressing for you.
• Double-check the page order in the downloaded PDF before submitting it anywhere, especially for multi-page scans.

Common Problems

A page is upside down or sideways. The converter places each image exactly as it is — if a photo was taken sideways, it stays sideways in the PDF. Rotate the image before uploading if needed.

The PDF file is larger than expected. This is expected if you combined several high-resolution images, since nothing is compressed during conversion. Resize the source photos first if a smaller file matters more than maximum quality.

The pages are in the wrong order. Use the reorder buttons before converting — the order in the file list is the order pages will appear in the final PDF. If you've already downloaded the wrong order, you'll need to reorder and convert again.

Frequently Asked Questions

Can I combine JPG and PNG images in the same PDF? Yes — both formats can be added to the same conversion and combined into one PDF.

Does converting images to PDF reduce their quality? Not with QR Ivify's converter — images are embedded at their original quality with no re-compression. The trade-off is that combining many large images produces a correspondingly large PDF.

Can I reorder images before converting? Yes — each image in the list has up/down buttons to move it earlier or later; the final PDF follows that order.

Is there a limit to how many images I can combine? With QR Ivify's converter, up to 30 images per conversion, each up to 15 MB.

Is it safe to convert photos of sensitive documents, like an ID or a signed form? That depends on whether the specific tool uploads your images to a server. QR Ivify's image to PDF converter processes everything locally in your browser — nothing is uploaded. See our guide to online converter safety for how to check any tool before trusting it.

Can I use this to turn a scanned document into one PDF file? Yes — this is one of the most common uses. Photograph or scan each page, upload all the images, put them in the right order, and convert.

Try It

Have a batch of photos or scans to combine? QR Ivify's free image to PDF converter works entirely in your browser, with no upload and no sign-up. If your photos are large before you even start, compressing them first can keep the resulting PDF smaller. Need to convert a document instead? See the Word to PDF or Excel to PDF guides.