# Convert images to PDF — free, in your browser
Source: https://www.pupilbot.com/images-to-pdf
Full agent brief: https://www.pupilbot.com/llms.txt

A free images-to-PDF converter: add up to 50 JPG, PNG, WebP or HEIC photos, drag them into the order you want, and download a single PDF. Nothing is uploaded — the file is built on the visitor's device, with no account and no watermark. It is a JPG to PDF, PNG to PDF and photo to PDF converter in one, and it works offline once the page has loaded.

## How it works

1. **Add the images.** Drop them onto the page, or choose them from the camera roll or a folder. Each image becomes one page. Up to 50 images go into one PDF.
2. **Put them in order.** Drag a thumbnail by its handle, or use the arrows, to set the page order; remove any image you do not want. Choose a page size: the image's own proportions, A4 or US Letter.
3. **Generate and download.** The PDF is built on the device in a few seconds and downloads with the name of the first image.

## What the converter does with the images

- Combines many images into one multi-page PDF, in the order chosen.
- Keeps photos sharp: each image is placed at up to 3000 pixels on its long side, which prints cleanly at A4 or Letter.
- Corrects camera rotation (EXIF orientation), so a page photographed sideways is upright in the PDF.
- Flattens transparent PNG backgrounds onto white.
- Made for students: photograph notes, a handout or a chapter, turn the photos into a PDF, and import that PDF into PupilBot (https://www.pupilbot.com/pdf-to-flashcards) to practise with AI-written questions. The 50-image limit matches the 50-page limit of a PupilBot study.

## Frequently asked questions

1. **Is it really free, with no account?** Yes. No account, no watermark, no file limit and no daily quota. It runs in the browser, so there is nothing to charge for.
2. **Are my photos uploaded to a server?** No. The images are decoded and the PDF is written by the page itself, on the device. Wi-Fi can be switched off after the page loads and it still works.
3. **Which image formats can I convert?** Anything the browser can display: JPG, PNG, WebP, GIF, BMP and, on iPhone, iPad and Safari, HEIC. In Chrome or Firefox a HEIC photo has to be saved as JPG first (on iPhone, Settings → Camera → Formats → Most Compatible makes the camera shoot JPG).
4. **How many images can go into one PDF?** Up to 50 per PDF, one image per page.
5. **Does it reduce the quality of my photos?** Slightly, and only for very large photos: images longer than 3000 pixels on their long side are scaled down to 3000 and saved as JPEG at 90% quality. A 30-photo PDF stays around 10–30 MB and text stays readable.
6. **Can I choose the page size?** Yes: "Same as the image" gives each page the proportions of its photo; A4 and US Letter fit each image inside a standard page with a small margin, turning the page for landscape photos.

## Related

- PDF to flashcards: https://www.pupilbot.com/pdf-to-flashcards
- Image to flashcards: https://www.pupilbot.com/image-to-flashcards
- Notes to quiz: https://www.pupilbot.com/notes-to-quiz
- Home: https://www.pupilbot.com/

Also in Spanish, French, German, Italian and Romanian at /es/images-to-pdf, /fr/images-to-pdf, /de/images-to-pdf, /it/images-to-pdf and /ro/images-to-pdf.