PDF to Base64 converter
Encode a PDF as Base64 text without changing its bytes.
Accepted files: .pdf. Choose one file. Up to 750 KB in total.
The output is standard padded Base64, without a data-URL prefix. Encoding increases file size and provides no privacy or encryption. The document itself is not compressed or rewritten. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use PDF to Base64 converter
- Choose a file in PDF.
- Review the settings, then choose Convert file.
- Review the result, then use Copy result or a download link when available.
Useful next steps
How to use it
Choose an unencrypted PDF up to 750 KB. Copy the resulting string or download it as a text file. Use Base64 to PDF to reverse the conversion.
A worked example
Every three source bytes typically become four Base64 characters. A 750,000-byte PDF produces 1,000,000 characters, excluding any optional data-URL prefix.
What to know
The output is standard padded Base64, without a data-URL prefix. Encoding increases file size and provides no privacy or encryption. The document itself is not compressed or rewritten.