Every common image type, in one PDF
Drop any mix of these and each image becomes one page, in the order you set:
| Format | Where it usually comes from | What we do with it |
|---|---|---|
| JPG / JPEG | cameras, phones, most downloads | placed byte for byte, no quality lost |
| PNG | screenshots, exported graphics | placed as it is, lossless |
| HEIC / HEIF | iPhone camera | opened on your device, saved once at high quality |
| WEBP | images saved from websites | saved once at high quality |
| AVIF | images saved from newer websites | saved once at high quality |
| GIF | memes, simple graphics | the first frame, since PDF pages can’t move |
| BMP | old scanners and Windows Paint | saved once at high quality |
“Saved once at high quality” means the image is opened by your browser and saved into the PDF as a high-quality JPG. If it has see-through areas, it’s saved as PNG instead, so the transparency survives.
Why mixing formats is useful
People collect documents from everywhere. A form photographed on an iPhone (HEIC), a certificate saved from a website (WEBP), a screenshot of a payment (PNG) and a scan from an office copier (JPG) can all go into one application PDF in a single step, without converting any of them first.
Very large images
Browsers on iPhones can’t draw a picture bigger than about 16.7 million pixels; past that they show nothing. Any image we have to redraw is brought down to 16 million pixels if it’s bigger. On an A4 page that’s still about 400 DPI, more than any form or ordinary print needs. JPGs and PNGs are placed as they are and don’t need this.
Images that won’t open
If something can’t be read, the page says which file and why, instead of failing quietly:
- a PDF dropped here by mistake: you’re pointed to Merge PDF or Compress PDF;
- a TIFF from an office scanner: some browsers can’t open TIFF, and if yours can’t, you’ll be told;
- a file that only looks like an image, like a web page saved with a .jpg name.
Page size, margin, order
The choices are the same as on JPG to PDF: A4, Letter or the image’s own shape; no margin, small or large. Wide images get a landscape page. Drag the numbered tiles into order, or use the arrow keys.
For a PDF made only of iPhone photos, HEIC to PDF explains the format and some useful iPhone settings. For screenshots, PNG to PDF has advice on page size.
Checked against the tool on 22 October 2026. How we write and test these guides