How to Use PDF Reader
Open a file
Drop a PDF into the upload area, or click to browse for one.
Navigate pages
Use the page controls or the thumbnail strip on the left to jump between pages.
Zoom & rotate the view
Use the zoom buttons to read comfortably, or rotate the view — this doesn't change the saved file.
Features
🔒 Private by default
Your files are processed locally in this browser tab wherever this tool supports it — never uploaded to a server.
⚡ Fast, in-browser processing
Powered by pdf.js and pdf-lib running directly on your device — no waiting on a server queue.
🖥️ Works on any device
Use it from desktop, tablet or mobile — the tool interface adapts to your screen.
💸 No install required
It's a web tool — nothing to download or set up before you can use it.
FAQ
No. The PDF Reader uses pdf.js to render pages entirely inside your browser tab. The file is never sent anywhere.
Yes, but very large files (500+ pages or huge embedded images) will take longer to render thumbnails since everything runs on your device's CPU.
Yes — the Rotate view button changes how the page is displayed; use the separate Rotate PDF tool if you want to save a rotated file.