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

Compress a PDF to under 1 MB

1 MB is a generous ceiling, and most documents reach it on the lightest setting available — which means the pages come back very close to the originals. It is the limit that email attachments and the more modern upload forms tend to use, and the one where compression costs you least.

How to compress a PDF to under 1 MB

  1. Open the PDF. The 1 MB limit is already selected.
  2. Compress.
  3. Save the result, or keep the original if the saving was not worth it. Nothing is overwritten either way.
Usually the lightest setting is enough

Because there is room, the first and gentlest setting normally fits. That setting reduces image resolution to about 200 DPI, which is more than any screen shows and more than most printing needs.

Good for long scanned documents

1 MB accommodates a substantial scanned document at readable quality. Where tighter limits force a choice between pages and legibility, this one usually forces neither.

Already under it? Nothing happens

Files that already fit are returned untouched. There is no reason to re-encode a document that meets the requirement, and doing so would only cost quality.

Questions about the 1 MB limit

Is the document uploaded?

No. It is processed in this browser tab and never transmitted.

Will 1 MB affect print quality?

Rarely. At this limit the compressor normally uses its lightest setting, which keeps roughly 200 DPI — enough for ordinary printing.

My PDF is 40 MB. Will it reach 1 MB?

Often yes, if the size comes from high-resolution scans, which is the usual cause. If it comes from many pages of dense photographs, it may not, and you will be told.

Can I compress several files at once?

Compression handles one document at a time. To make one file from several, merge them first, then compress the merged result.