PDF Tools
Images to PDF
Turn JPG and PNG images into one PDF. Reorder them, choose 'fit to image' or A4 pages, then download — all processed locally in your browser.
Drop JPG or PNG images here or click to browse
Images stay on your device — nothing is uploaded.
How to convert images to a PDF
- Add your JPG and PNG images — photos, document scans, screenshots.
- Arrange them in the order they should appear as pages.
- Choose Fit to image for pages that match each picture's shape, or A4 page for standard printable pages.
- Create the PDF and download it.
Fit to image or A4 — which to choose
In Fit to image mode the page size comes from the image's pixel count, at one point per pixel. A 4032 × 3024 phone photo therefore makes a page about 142 × 107 cm. PDF viewers simply zoom out to show it, but if you plan to print, choose A4 so the pages come out at a normal size.
| Question | Fit to image | A4 page |
|---|---|---|
| Page size | Each page is exactly the size of its image | Every page is 210 × 297 mm |
| Margins | None — the image fills the page | The image is centred with at least a 20-point (about 7 mm) margin |
| Mixed shapes | Each page takes its own image's shape | Portrait and landscape images all sit on portrait A4 pages |
| Best for | Viewing on screen, sharing photos | Printing, forms, official submissions |
Keeping the PDF small
JPG images are placed in the PDF exactly as they are, without being re-compressed, so no quality is lost — and the PDF ends up about as large as all the images added together. PNGs are also stored losslessly, which keeps screenshots sharp but can make photo-heavy PDFs big. The one exception is a phone photo that was saved sideways with a rotation tag: it's straightened and re-saved at high quality so the page comes out upright.
To get a smaller file, shrink the images before converting: resize them to around 1600–2000 pixels on the long side, or compress them with the Batch Image Compressor. A document page photographed at 12 megapixels holds far more detail than anyone needs to read it.
Scanning documents with your phone for a PDF
- Put the page on a dark, plain surface so its edges are easy to crop.
- Shoot from directly above in even daylight to avoid shadows and slanted edges.
- Crop each photo to the page before converting — your phone's built-in crop tool is fine.
- Convert iPhone HEIC photos to JPG first; this tool accepts JPG and PNG.
Making the PDF easy to read
- Use A4 pages for anything that will be printed or read like a document — photos of different sizes then look consistent.
- Put the most important page first, because many previews and email apps show only page one.
- Rotate or crop photos before adding them so every page reads the right way up without the reader turning the screen.
Frequently asked questions
Which image formats are supported?
You can convert JPG/JPEG and PNG images. Add as many as you like, arrange their order, and they'll become pages of a single PDF.
Can I choose the page size?
Yes. 'Fit to image' makes each page exactly match its image, while 'A4 page' centers each image on a standard A4 sheet — handy for printing.
What order are the pages in?
The order of the list. Images are added in the order you choose them, and you can move any image up or down before creating the PDF — the first image in the list becomes page one.
Is there a limit to how many images I can add?
No fixed limit. Each image is processed in your browser, so a computer handles large sets comfortably; on a phone, keep very large collections to a few dozen photos at a time, or resize them first.
Can I add more pages to an existing PDF?
Convert the new images to a PDF here, then combine it with the existing document using Merge PDF.
Can I use HEIC or WebP images?
Not directly — the tool accepts JPG and PNG. Convert iPhone photos with HEIC to JPG and WebP files with WebP to JPG first; both also run in your browser.