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Sheafy PDF

About Sheafy PDF

A small set of PDF tools built around one rule: your documents stay on your device.

Why this exists

Everyday PDF chores, such as combining a few files, pulling out a page, hiding an account number or getting an attachment under an upload limit, usually mean handing your document to a website that processes it on its servers. For contracts, medical forms, payslips and identity documents, that is an uncomfortable trade.

Sheafy PDF does the same jobs without that step. The PDF engine is delivered to your browser and runs there.

  • No login or account

    Nothing to sign up for. Open a tool and use it.

  • No uploads to any server

    Files are processed in this browser tab, on your device.

  • No documents stored

    We never receive your files, so there is nothing to keep.

How it is built

  • Pages are copied and rewritten with the open-source pdf-lib library, so merged and split documents keep selectable text and vector quality.
  • Previews and page rendering use Mozilla's PDF.js, the same engine that displays PDFs in Firefox, including its WebAssembly image decoders.
  • Heavy work runs in Web Workers, separate background threads, so the page stays responsive.
  • The site is static files only. There is no database and no application server that could receive a document.

Being straightforward about limits

Working inside a browser has limits, and the tools say so when you reach them. Very large files can exceed the memory of a browser tab. Some PDFs cannot be compressed to the size you ask for. Redacted pages become images. Where a limit applies, you will see a plain message instead of a result that only looks successful.

The tools

  • Edit PDF: Add or replace text, sign, highlight, draw and comment.
  • Merge PDF: Combine PDFs into one file. Reorder and rotate pages first.
  • Split PDF: Extract pages or split one PDF into several files.
  • Organize PDF: Reorder, rotate, delete and duplicate pages.
  • Compress PDF: Shrink a PDF, or set an exact target size in KB or MB.
  • Redact PDF: Permanently remove sensitive content, not just cover it.
  • JPG to PDF: Turn photos and scans into a single PDF.
  • PDF to JPG: Save PDF pages as JPG images.