PROCESSED LOCALLY
⬡ zero uploads

Every PDF tool you need,
running inside your browser.

Compress, convert, merge, sign, redact and read scans. Choose a tool and open a file — it is processed on this device and never uploaded.

Why this is different

No document is uploaded. This can be independently verified.

Comparable services transmit your file to a server and undertake to delete it subsequently. PaperJET has no server to which a document could be sent: the tools are compiled to WebAssembly and execute within this browser tab, on your own device. Nothing is queued, nothing is capped, and the work continues if you go offline after the page has loaded.

To verify Load this page, disconnect from the network, and then compress a document. The operation completes as normal. No server-dependent service could do so.
No uploadThe file is read from local storage by the browser and does not leave it. No copy exists anywhere other than on your own device.
No account requiredNo registration, no email address and no consent banner. An account is optional and serves only to retain your preferences.
No limitsNo file size cap, no daily quota, no queue and no watermark applied to output. The only constraint is the memory of your device.
Established componentsBuilt on pdf-lib, pdf.js and Tesseract, the same libraries used across the industry, executed locally.

Questions

Frequently asked questions

Are documents uploaded to a server?

No. Every tool executes within your own browser using WebAssembly. The file is read from local storage by the browser and is not transmitted, so no server holds a copy of it. This may be verified by disconnecting from the network once the page has loaded; the tools continue to function normally.

Is PaperJET free to use?

Yes. All tools are provided free of charge, with no account required, no watermark applied and no file size limit.

Can a scanned PDF be processed?

Yes. The OCR tool reads the text from a scan and can return the same scan with an invisible text layer applied, so that the document appears unchanged while becoming searchable and available for copying.

Can a PDF be converted to Word or Excel?

Yes, where the PDF already contains text. Where the file is a scan, the OCR tool should be used instead; the interface will indicate which case applies.

Is there a file size limit?

No. As processing is performed on your own device rather than on a server, the constraint is the available memory of that device rather than an upload cap.

Compress
Drop a PDF here, or click to choose
It stays on this computer

Add page numbers to a PDF

Applies page numbers in the position you specify. The numbers are drawn as live text rather than stamped as images, so they remain sharp at any zoom level and print cleanly. Applied on your own device, without the document being sent anywhere.

How to add page numbers to a PDF

  1. Open the PDF.
  2. Choose where the numbers should sit — bottom centre, bottom right, and so on.
  3. Apply, and save.
Live text, not a stamp

Numbers are real text in the document. They stay crisp when zoomed, print at full resolution, and add almost nothing to the file size.

Landscape pages are handled properly

"Bottom centre" means the bottom centre of the page as the reader sees it, so a landscape page in the middle of a portrait document is numbered where you would expect rather than along its edge.

Questions about adding page numbers

Is the PDF uploaded to add page numbers?

No. The numbers are applied in this browser tab and the document is not transmitted.

Where can the numbers be placed?

In any of the standard positions along the bottom or top of the page. The choice applies consistently across the document.

Will the numbers stay sharp when printed?

Yes. They are drawn as live text rather than as an image, so they print at the full resolution of the printer.

Are landscape pages numbered correctly?

Yes. Positions refer to the page as displayed, so a landscape page is numbered along the edge the reader sees as the bottom.