MinoPDF LogoMinoPDF

About MinoPDF

MinoPDF is a free collection of simple PDF tools: convert, clean, extract and organize — and keep going, because compatible operations connect. Choose a file once, and when one operation finishes you can hand its result straight to the next compatible tool instead of choosing the file again. All processing happens right in your browser — your files never leave your device, and no server ever receives them.

What we believe

Getting work done should not require handing over your files. Most online PDF tools ask you to upload first, which means your contracts, invoices, medical records, and unpublished drafts pass through someone else's server. We think that step is unnecessary: the browser is powerful enough to convert, organize, extract, and clean PDFs on its own.

So every feature in MinoPDF is built to the same standard: the file never leaves your device, and nothing depends on a server.

The same applies to the work itself: a job rarely ends with one operation. When a tool finishes, its result can be handed straight to the next compatible tool — no download, no re-upload, no second file picker. Only compatible pairs connect, and nothing is filled in when the next tool cannot accept the format.

Why MinoPDF?

  • Steps That Connect: When a tool finishes, hand its result to the next compatible tool — no repeated file selection or downloads between steps.
  • 100% Local Processing: Files are opened, processed, and written back in your browser. Your PDFs and images never leave your device.
  • Free, No Sign-Up: No account, no email, no page or run limits, and no watermark on the output.
  • No Upload, No Storage: There is no endpoint that receives your file and nowhere to store it — what does not exist cannot leak.
  • No Invasive Ads: No pop-ups, and no cross-site tracking scripts.
  • Nothing Left Behind: Results live in the current tab's memory only. Once you download them, no copy remains on our side.

Available Tools

  • Convert: images, TXT, Markdown, HTML, and ZIP archives to PDF — plus PDF pages to PNG, JPG, or WebP.
  • Organize: merge PDFs, extract and reorder pages (write 1-3,5, reorder with 3,1,2, or repeat a page), rotate pages, and normalize page sizes.
  • Extract: pull the original images embedded in a PDF, or turn its content into text or Markdown.
  • Clean: inspect metadata (title, author, dates, producer, page count) or strip those fields and the XMP stream in one go.

More tools are on the way — see the full list.

How It Works

Files are read locally through the browser's File API. Parsing and rendering are handled by PDF.js, while document creation and page operations use pdf-lib — both are mature open-source JavaScript libraries. No WebAssembly and no plugins are involved.

Heavier work (rendering pages, reordering, batch conversion) runs in a Web Worker, so the interface stays responsive even with large documents. When a tool finishes, you get the result as a file to download, and the intermediate artifacts disappear when the tab closes.

Because everything runs on the client, the tools keep working after you go offline — that is not a degraded mode, it is how they normally work.

Privacy and Security

  • No upload: there is no endpoint on this site that accepts file contents.
  • Verify it yourself: open DevTools → Network → drop in a file and run a tool. You will see no request carrying your file.
  • Anonymous events only: at most we record the tool used, the format, and a duration bucket — never file names, text, or image contents. If analytics are not enabled, nothing is sent at all.
  • Encrypted files are left alone: if a PDF cannot be opened, it fails outright. We do not try to bypass passwords or permission flags.

Full details are in the privacy policy.

Limits

We would rather state the limits up front than let you hit them mid-task:

  • Size caps: the default limit is 100 MB per file and 50 files per batch, checked locally in your browser. Beyond that, device memory is the real constraint — split large jobs up.
  • Browser support: recent versions of Chrome, Edge, Firefox, or Safari. IE11 and older are not supported.
  • Scans have no text layer: pages without selectable text are skipped when converting to text or Markdown and listed in the report. Run OCR first.
  • Document-level features may not survive: rebuilding a PDF can lose bookmarks, forms, annotations, or attachments, and it can invalidate existing digital signatures.
  • What we do not do: no online layout editing, no file storage on our side, no cross-device sync or history.

What's Next

We are exploring page quality checks, deskew, and OCR that run entirely in the browser, with models inferred locally so files still never leave your device. These are experimental and not available yet.

Contact

Have questions, suggestions, or feedback? Feel free to reach out to us.