Vellum opens a PDF document directly in the browser, with no software to install and no account to create: pages shown one at a time, navigation thumbnails, zoom, fit to width or whole page, view rotation, and full-text search across the document. Password-protected files open once you type the password, and the original document can be printed or downloaded as is. Opening and display are computed by your own device: the file is never uploaded, stored, or read by a server.
Vellum displays the document directly in your browser: pages one at a time, navigation thumbnails, zoom, view rotation and full-text search. The file stays on your device, never uploaded or stored.
Yes, simply type the password and the document displays normally. The original file can then be printed or downloaded as is, unchanged.
Yes, with no size limit, no cap on how many times you open a file, and no account needed. Since display is computed by your own device, there is no server cost to pass on to you.
Vellum — free PDF tools whose processing stays on your device.