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About HushPDF

Private by design

  • Files are processed in your browser — never uploaded, tracked, or stored.
  • Free & open source (MIT) — audit, self-host, or fork it.

Limitations

  • Password-protected PDFs aren’t supported.
  • Up to 50 MB per file (150 MB total when merging).
  • It edits the finished PDF, not the Word or design file it was made from.
  • Forms, annotations, or signatures may not carry over when pages are copied.
  • Signatures are images (e-signatures), not certificate-based digital signatures.
  • Typed text supports Latin, Greek, Cyrillic, Bengali, Devanagari and Arabic.
  • Compression helps most with scanned or image-heavy PDFs.
  • OCR (beta) downloads a language model on first use; your pages stay on your device.
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Edit PDF metadata

Edit or remove hidden document info

How it works

See the hidden information inside a PDF — author, software, dates — then edit it or remove it all before sharing.

  1. Add one PDF file.
  2. Review the properties that were found.
  3. Edit them, or turn on “Remove all hidden metadata”.
  4. Download the updated file.

Questions

Why remove metadata?

PDFs often carry the author’s name, company, software and edit dates. Removing them avoids leaking personal details when you share a file publicly.

Does this remove everything private?

It removes document metadata. Text, comments and content on the pages stay — use Redact to remove sensitive content.

Are my files uploaded to a server?

No. Every operation runs locally in your browser using JavaScript (pdf-lib, with page previews from PDF.js). Your documents are never transmitted to us or to any third party, and there are no accounts, watermarks, or file-retention tricks. You can even disconnect from the internet after the page loads and the tools still work.