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

Sign a PDF

Draw a signature with a mouse or touchscreen, or upload an image of an existing one, then position it where it belongs on the page. The document stays on your own device throughout — which is the whole point, given that the papers people are asked to sign and return are typically agreements, bank forms and identity documents.

How to sign a PDF

  1. Open the PDF you have been asked to sign.
  2. Draw your signature, or upload an image of one.
  3. Position it on the page and adjust the size.
  4. Save, and send the signed document on.
This is a visual mark, not a cryptographic signature

It places an image of your signature on the page. It does not cryptographically establish who applied it or prove the document has not been altered since. That is nonetheless what is ordinarily meant by a request to sign and return a document — but where a legally certified digital signature is specifically required, this is not that.

Nothing is uploaded, including the signature

Your signature image and the document are both handled entirely on this device. Signature-collection services keep both on their servers by design; this does not, because it has no server to keep them on.

Questions about signing a PDF

Is my document uploaded to sign it?

No. The signature is applied in this browser tab. Neither the document nor the signature image leaves your device.

Is this a legally valid signature?

It applies a visual mark, which is what is normally intended when someone asks you to sign and return a document. It is not a cryptographic digital signature and does not by itself establish who signed. Where a certified digital signature is specifically required, a certificate-based service is needed instead.

Can I use a photograph of my existing signature?

Yes. Upload a PNG or JPEG of it and position it on the page, or draw a fresh one with a mouse or touchscreen.

Can I sign more than one page?

Yes. Place the signature on each page that requires it before saving.