Turn a PDF into a Base64 string or a ready-to-use data URI you can embed in HTML, JSON or an API payload. Encoding happens in your browser, so the file is never uploaded. Note that Base64 increases size by about a third.
Your files are processed securely in your browser and are not uploaded to our servers.
PDF to Base64 works on your documents locally, so you get the result in seconds with no watermarks, no sign-up and no files leaving your device.
No — it's encoded in your browser.
You can paste it into an href or embed to open the PDF without a separate file.
Base64 encoding increases size by roughly a third versus the binary file.
Drag & drop files here
One PDF file