Papyx

Everyday PDF tools
that send nothing anywhere.

The same moves as iLovePDF or Smallpdf — merge, split, compress, convert, watermark — except on your own machine.

Version 1.0.0 · 4.7 MB installer · Windows x64

No network requests
No HTTP client in the binary.
No limits
Not on size, count or quota.
No account
Nothing to create, nothing to hand over.
4 MB
The installer, eleven tools included.

What changes against an online service

An online converter needs you to hand over the document. That is the one thing Papyx does not do.

  • No network requests

    No HTTP client in the binary, and no command that takes a URL.

  • No size limit

    Nothing is uploaded, so nothing is billed by the megabyte.

  • No account, no waiting

    No sign-up, no queue. The app opens and does the work.

  • 4 MB installed

    Eleven tools in a few megabytes of installer.

One page, and either order works

Choosing a tool opens no screen: the grid folds away and the settings appear beneath it.

  • Documents at the top

    Drop your files in, or pick the tool first. Either order works.

  • The tool underneath

    Its settings open in place, under the grid. Nothing navigates.

  • One click to finish

    With a fixed output folder, files are written straight there.

The limits, stated before you download

  • Encrypt a PDF

    Papyx reads a protected document given its password; it cannot produce one.

  • Compress losslessly

    Compressing rasterizes the pages: no selectable text left.

  • Recognise text

    No OCR. A scan with no text layer comes out empty.

  • Watermark beyond Latin

    Stamps use Helvetica: extended Latin, and no further.

Frequently asked questions

Does Papyx upload my files to a server?

No, never. Papyx is a desktop app: your documents are read from your disk, transformed in the app's memory, then written back to your disk.

This is not just a policy. The binary contains no HTTP client, and none of its native commands accepts a URL — the app has no technical means of sending anything anywhere.

Is there a limit on file size or number of files?

None. Because nothing is uploaded, there is no quota, no queue and no billing by the megabyte. The only real limit is your machine's memory.

A PDF of several hundred megabytes goes through like any other, as often as you like.

Which systems does Papyx run on?

The official installers are for Windows 10 (1803 or newer) and Windows 11, 64-bit.

There is no published macOS or Linux build for now: Papyx is built and tested on Windows, and publishing elsewhere takes a signing identity (macOS) and system packages (Linux). The code itself is cross-platform and builds on all three.

How is this different from iLovePDF or Smallpdf?

The moves are the same: merge, split, compress, convert, watermark, number pages. The difference is where they happen.

An online service needs you to send it the document; size limits, queues, accounts and paid tiers all follow from that. Papyx does the work on your machine, which removes all four at once.

Frequently asked questions about Papyx

Your documents do not need to travel

Papyx is free, open source, and fits in a few megabytes of installer.