Base64 to PDF Converter Online

Decode Base64 into a PDF file locally in your browser. Supports both raw Base64 strings and data URLs.

Decoded size

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PDF header check

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First bytes (hex)

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Tip: if your input starts with data:application/pdf;base64,, you can paste it directly.

About This Tool

Base64 to PDF Converter decodes Base64 text directly in your browser and saves the result as a PDF file. It works with raw Base64 and complete data URLs, with no server upload.

Frequently Asked Questions

Why do I get "Header not detected"?

The decoded bytes may not actually be a PDF, or the input may be truncated/invalid. The download still works, but the file might not open as PDF.

Is any Base64 data sent to a server?

No. Decoding and file generation are fully local in your browser.

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