Resize PDF pages to a standard paper size like A4 or Letter in one click — content is scaled to fit. Free, secure, and private in your browser.
Yes. You can resize the pages of your PDF to a standard paper size right here online for free — no account, email, or credit card required. Sign up only if you want higher limits, larger files, or API access.
Yes. Uploads travel over an encrypted HTTPS connection, are processed on our servers, and are automatically deleted within a few hours. We never share or sell your documents.
No. PDF4 works entirely in your web browser, so there is nothing to download or install. It runs on Windows, macOS, Linux, Android, and iOS.