Combine PDFs into one, in the order you add them, done entirely on this device. Real pages are copied over -- text stays selectable, nothing is rasterized.
Yes, completely free with no sign-up, no watermark, and no limit on how often you use it.
No. Every conversion runs in your browser, on your own device. Your file is never sent to a server or stored anywhere but your device.
No -- pages are copied directly between documents, so text and vector content stay exactly as sharp as the originals.
Yes -- it works in any modern browser on a phone, tablet, or desktop, with no app to install.