Add the photos, put them in the right order, choose a page size. Useful when someone asks for “one PDF” and you have eight photos of a contract.
Result
pages
JPEG and PNG are embedded exactly as they are, with no re-encoding and no loss. WebP, AVIF, GIF, BMP and HEIC are converted to JPEG first if your browser can decode them — HEIC generally works on iPhone and iPad and generally does not elsewhere. Anything that cannot be read is named in the result rather than silently dropped.
It gives every page the same shape as its image, so nothing is cropped and there are no margins. Choose A4 or US Letter instead when the file has to print or match other paperwork; the image is then centered and scaled to fit.
Not for JPEG and PNG: those bytes go into the document untouched. Converted formats are re-encoded once as high-quality JPEG, and very large photos are scaled down to keep the file openable on a phone.
Yes. On a phone, tapping the drop zone opens the camera roll and the camera, because the file input is a native one.