Turn JPG, PNG and Screenshots Into One PDF
A PDF looks the same on every phone, laptop and printer, which is why so many forms and email threads ask for one. If what you have is a photo of a receipt, a scan saved as JPG or a folder of screenshots, this tool wraps them into a single PDF. Add the images, put them in order, pick a page size and download. It all happens in your browser, so your files never leave your device.
Why Convert Images to PDF
Sharing is the usual reason. One PDF is easier to send than twelve attachments, and the pages stay in the order you chose. Printing is another: with a fixed page size and margins, the result comes out the same on any printer. Many online forms for IDs, proof of address and receipts only accept PDF. And if you write bug reports or tutorials, a PDF is a tidy way to combine a series of screenshots into one document.
JPG vs PNG Inside a PDF
JPG and PNG files are placed in the PDF as they are. Nothing is recompressed, so quality matches the original and the PDF is about as large as the images put together. Other formats are redrawn and saved as PNG, which is lossless.
| Format | Best for | In the PDF |
|---|---|---|
| JPG | Photos, scans | Embedded as is, no recompression |
| PNG | Screenshots, text, graphics | Embedded as is, transparency kept |
| WebP, GIF, BMP | Web images, older files | Redrawn and saved as lossless PNG |
Phone photos are the one exception. They often carry a hidden rotation tag, and when it is set the converter redraws the photo upright as a 92% quality JPEG so it does not appear sideways on the page.
Choosing a Page Size
Fit to image makes each page exactly as big as its image, which suits screenshots that will be read on screen. A4 and US Letter are for printing or for forms that expect a standard page. The image is scaled to fit inside the margins, centred, with its proportions kept. Orientation set to Auto picks portrait or landscape for each image, so a wide screenshot does not end up tiny on a tall page. Margins come in None, Small (20 pt, about 7 mm) and Large (40 pt, about 14 mm).
Tips for a Cleaner PDF
Name your files so they sort the way you want, then check the order in the list before converting. The first file also names the PDF, so holiday-photo.jpg becomes holiday-photo.pdf. For documents you plan to print, pick A4 or US Letter with a small margin so nothing is clipped at the edge. For long screenshots, Fit to image avoids shrinking them onto a page. If the PDF has to stay under an email size limit, resize or compress the images first, since they are stored without recompression.
Privacy
The PDF is built on your device with an open-source library called pdf-lib. Your images are not uploaded, there is no account, and no server sees them. Close the tab and nothing is kept.