FreeDev Tools

ASCII85 Encoder

Encode and decode ASCII85 (Base85) — the compact binary-to-text encoding used in PDFs and PostScript.

Runs locally in your browser. Your input is not uploaded.

How to Use

  1. 1

    Paste text or ASCII85

    Pick encode or decode direction.

  2. 2

    Convert

    Encoding wraps output in <~ ~>; decoding accepts either form.

  3. 3

    Copy the result

    Use it in PDFs, PostScript, or wherever Base85 is required.

Frequently Asked Questions

A binary-to-text encoding that maps 4 bytes to 5 printable characters — about 25% overhead versus Base64's 33%. Adobe uses it in PDF and PostScript files.

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