Images to PDF

This tool turns a set of images into a single multi-page PDF: one image per page, in the order you choose. It accepts JPG, PNG and WebP files and lets you pick A4, Letter or a page sized to each image. The PDF is built by a Rust module compiled to WebAssembly in your browser tab, so your photos and scans are never uploaded. When scanned receipts, phone photos of signed forms or screenshots need to become one attachment, the JPG to PDF guide explains why local assembly is the right default.

How to convert images to PDF

1. Drop your images on the tool or click to select them. Add more at any time with Add more.
2. Put them in order with the up and down arrows next to each file. Remove one with the cross. The list order is the page order.
3. Pick a page size: A4 (default), Letter or Fit.
4. Click Build PDF. The result panel shows how many images were converted and the PDF size.
5. Click Download to save images.pdf.

Page size options

• A4: 210 × 297 mm portrait pages, the standard in Europe and most of the world. Use it for documents you will print or send to an administration.
• Letter: 8.5 × 11 inch portrait pages, the standard in the United States and Canada.
• Fit: each page takes the proportions of its image, with no white border. A 1200 × 1600 pixel image gives a page of 900 × 1200 points (the tool counts 96 pixels per inch). Best for photo books, slides, screenshots and anything viewed on screen.

With A4 and Letter, each image is centered and scaled to fill as much of the page as possible while keeping its proportions. A small image is enlarged to the page width, and a landscape photo on a portrait page leaves white space above and below. There is no margin setting.

What happens to your images

• JPEG encoding: every image is embedded as a JPEG at quality 85, including PNG and WebP inputs. This keeps the PDF compact, but a PNG with sharp text or line art may show light JPEG artifacts when zoomed in.
• Transparency: transparent areas of PNG or WebP files are filled with white, so logos and cut-outs look clean instead of showing a black or noisy background.
• Orientation: the tool uses the pixels as stored and does not read the EXIF orientation flag of camera photos. If a phone picture lands sideways, rotate that page afterwards with the PDF organizer.
• Metadata: EXIF data such as GPS position and camera model is not copied into the PDF, because each image is decoded to pixels and re-encoded.

Limits

Up to 50 images per PDF, 20 MB per image and 300 MB in total. HEIC photos from an iPhone are not accepted: convert them first with HEIC to JPG. Other formats such as GIF, BMP or TIFF are filtered out by the drop zone.

Single-format converters

If you always start from the same format, these dedicated pages run the same engine and are labeled for one format: JPG to PDF for camera photos and scans, PNG to PDF for screenshots and graphics, and WebP to PDF for images saved from the web.

Compared with desktop software

On Windows, "Microsoft Print to PDF" from the Photos app can turn a selection of images into a PDF, and on macOS Preview can export several images as one PDF. Both work, but page sizing and image scaling are harder to control, and the result depends on printer settings. Command line users have img2pdf or ImageMagick. This tool works the same way on any device with a browser, including phones, with three clear page size choices.

Why build the PDF locally

The images people combine into PDFs are often sensitive: ID cards and passports for a rental or bank file, pay slips, medical prescriptions, signed pages photographed with a phone. A web converter that uploads them keeps a copy on its servers for some time, whatever its policy says. Here the images are read and assembled in your browser's memory. You can check in the Network tab of your developer tools that building the PDF sends no request.

Frequently asked questions

How many images can I put in one PDF?

Up to 50 images, each up to 20 MB, with 300 MB in total. Each image becomes one page.

Can I put several images on the same page?

No. The tool places one image per page, centered and scaled to fit.

Why is my photo sideways in the PDF?

Phones often store the photo rotated and rely on an orientation flag to display it upright. The tool uses the stored pixels. Rotate that page with the PDF organizer after building.

Does it keep the original image quality?

Images keep their full pixel dimensions but are encoded as JPEG at quality 85. For photos the difference is not visible. For sharp screenshots, zooming in may show slight artifacts.

Can I convert iPhone HEIC photos?

Not directly. Convert them to JPG first with the HEIC to JPG tool, then add them here.

Which page size should I choose?

A4 or Letter for anything that may be printed or filed with an administration. Fit for on-screen documents where you want no white borders.

Are my images uploaded?

No. The PDF is assembled entirely in your browser by WebAssembly. No image leaves your device.