Short answer
Screenshots save as PNG on most devices. To turn one or many into a PDF, add the PNGs below — each becomes a page in a single PDF you can download. It's free and runs in your browser, so private screenshots never leave your device.
Bundling a run of screenshots — a chat thread, a step-by-step, a receipt — into one PDF makes them easy to share and print in order. Add them in sequence and they're combined top to bottom.
Because screenshots often contain personal information, doing the conversion locally (no upload) matters — nothing here is sent to a server.
Usually PNG on Windows, Mac, iPhone, and Android — all supported here.
No — they're combined in your browser and never uploaded.