How to convert BMP to PDF
- Tap "Choose photos" or drop your BMP pictures onto the box.
- Put them in order and choose a page size.
- Tap the button under the pictures to make the PDF, then download it.
Good to know
BMP pictures aren’t compressed at all, so they are large: a single scanned page can be 25 MB. In the PDF each one is saved as a high-quality JPG, which makes the PDF many times smaller and easy to email.
You can mix in JPG, PNG, WebP and iPhone photos in the same PDF.
Questions
Why is a BMP file so big?
BMP stores every pixel as it is, without compression. A PDF made here stores the pictures as JPGs, so it is much smaller.
Can I add several BMP pictures to one PDF?
Yes. Each picture becomes a page, in the order you choose.
Are my pictures uploaded?
No. The PDF is built by your browser on your device.
Page last reviewed 30 October 2026.