Decode PDF Base64
Base64 to PDF Converter Online
Paste Base64 that represents a PDF and restore the original PDF bytes. The tool checks the PDF header and end marker before enabling an exact-byte download. It does not certify that the PDF is readable or safe.
Exact byte decodeData URL supportSignature preflight
Paste Base64 PDF data
PDF decoded
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Decode Base64 to PDF without changing the file
Base64 is an encoding, not a document format. If a PDF was encoded as Base64, decoding should reproduce the original PDF bytes. This converter accepts standard Base64, URL-safe Base64 and data:application/pdf;base64,... strings, then checks PDF signature and EOF markers before download. These basic checks do not prove readability, authenticity or safety.
- Useful for API responses, database fields and developer payloads.
- Whitespace and line breaks are removed automatically.
- For Java, .NET or Python workflows, the same principle applies: Base64-decode the string and write the bytes as a PDF.