Turn photos, scanned pages and screenshots into a single PDF. Phone photos are turned the right way up automatically, and you can reorder, rotate and choose the page size and margins.
As many as your device can handle. Dozens of phone photos work fine on a normal phone or laptop.
Images are saved at high quality. If the PDF is too large to email, use Compress PDF afterwards.
Yes, as JPG or PNG. HEIC photos need converting first; most iPhones do this automatically when you share or email them.
Everything happens in your browser. Your files are never uploaded to a server, so nobody else can see them.