Add page numbers to your PDF online for free. Choose custom positions and number formats. Fast, 100% private client-side processing.
No. Unlike basic online converters that turn PDF pages into images, 1ClickTools injects text elements directly into the document's vector layers. Your original fonts, vector line art, and high-resolution images remain completely untouched.
You can select from four standard formats: single digits ('1'), page prefix ('Page 1'), dynamic page counts ('1 of 10'), or formal page counts ('Page 1 of 10').
You can place page numbers in 6 distinct positions: Top Left, Top Center, Top Right, Bottom Left, Bottom Center, or Bottom Right, with safety margin padding built-in.
No. All PDF parsing, text injection, and compilation take place locally inside your web browser's client-side memory using JavaScript WebAssembly. Your files are never uploaded to any remote server.
Page numbers are rendered in standard Helvetica font, ensuring 100% cross-platform compatibility across all PDF viewing software and mobile devices.
Yes. 1ClickTools is fully responsive and works seamlessly on desktop computers, Macs, iPhones, iPads, and Android mobile web browsers.
Yes, 1ClickTools provides 100% free access for personal, academic, and commercial projects with zero daily limits or hidden fees.
Because processing happens directly in your device's memory without cloud network latency, page numbers are stamped in milliseconds, even on multi-hundred page documents.