JPG to PDF online

How to convert images to PDF

1. Choose one or more JPG or PNG images. Select multiple files at once, or add more with a second selection.
2. Check the order matches what you intend, since pages follow file-selection order.
3. Click Convert to PDF.
4. Preview the result to confirm every image appears as its own page in the right order.
5. Download the PDF.

Each page is sized to exactly match its source image's pixel dimensions, so images of different sizes produce a PDF with differently sized pages, which is normal and expected.

What this does and how it works

This tool reads each selected image, embeds it into a new PDF document, and creates one page per image sized to match that image's exact pixel dimensions, with the image drawn to fill the page completely. Images are added in file-selection order, so the first image you select becomes page 1. JPG images are embedded directly without re-encoding, and PNG images (including any transparency) are embedded using PNG's own encoding, so image quality is preserved exactly as it was in the source file.

Best practices

• Select images in the order you want them to appear as pages; the tool does not offer a separate reordering step.
• Use consistently sized images when possible for a PDF with uniform-looking pages; mixed sizes work but produce pages of different physical dimensions.
• Check image orientation before converting. A sideways photo will produce a sideways PDF page; rotate the image first with the image resizer or your device's photo editor, or fix it afterward with rotate PDF.

Common mistakes to avoid

• Selecting images in the wrong order and not noticing until after downloading; check the order before converting.
• Expecting automatic page sizing to a standard paper size. Pages match each image's pixel dimensions exactly; there is no automatic fit-to-A4 or fit-to-Letter option.
• Converting very large, high-resolution photos without considering file size; a PDF built from many full-resolution photos can become quite large. Compress images first with the image compressor if file size matters.

Real-world use cases

• Combining several photographed document pages into one shareable PDF instead of separate image files.
• Creating a simple photo PDF from a phone camera roll for printing or sharing.
• Assembling scanned receipts or forms photographed individually into one file for an expense report.
• Preparing a portfolio or set of images as a single document rather than a folder of files.

Supported formats

Input: JPG and PNG images, any number of them. Output: a single standard PDF file, one page per image. WebP, HEIC, and other image formats are not directly supported; convert them to JPG or PNG first with the image converter (for WebP) or your device's tools (for HEIC).

Worked example: turning 3 photographed receipts into one PDF

Three receipt photos (receipt1.jpg at 1200x1600px, receipt2.jpg at 1200x1600px, receipt3.jpg at 1600x1200px, the last one photographed sideways) selected in that order produce a 3-page PDF: pages 1 and 2 sized 1200x1600, and page 3 sized 1600x1200 (wider than tall, since it inherits the sideways photo's dimensions as-is).

If page 3 should be portrait to match the others, rotate that photo before converting, or fix it afterward with rotate PDF.

Limitations

Pages are sized to match each image exactly; there is no automatic scaling to a standard paper size like A4 or Letter. Only JPG and PNG inputs are supported. Very large batches of high-resolution images may be slow to process or produce a large output file, since everything runs in your browser's memory rather than on a server.

Privacy

Your images are read and combined locally in your browser using the pdf-lib JavaScript library loaded from this site. Files are not uploaded to a server. See the privacy policy for full detail.

Troubleshooting

• If the page order is wrong, redo the file selection in the order you want.
• If a page is sideways, rotate that source image before converting, or use rotate PDF on the result afterward.
• If the resulting file is too large, compress your images first with the image compressor, or shrink the PDF afterward with compress PDF (results will vary since this is image-heavy content).

Preparing photos before converting

A few minutes of preparation before converting usually saves a redo later. Check each photo's orientation in your device's photo app and rotate any sideways or upside-down shots first, since fixing orientation after the fact means either re-doing the conversion or using rotate PDF on specific pages afterward. If some photos are much larger in resolution than others (a scan at 300 DPI mixed with a quick phone snapshot), consider whether that size difference matters for your use case; the resulting PDF will simply have differently sized pages, which reads fine on screen but can look inconsistent if the file is printed.

Conclusion

Use this tool to turn a set of photos or scanned images into a single, shareable PDF. To go the other direction, converting PDF pages back into images, use PDF to JPG.